36 files changed, 692 insertions, 564 deletions

diff --git a/g4f/Provider/Aura.py b/g4f/Provider/Aura.py
index 4501df2c..7e2b2831 100644
--- a/g4f/Provider/Aura.py
+++ b/g4f/Provider/Aura.py
@@ -18,7 +18,7 @@ class Aura(AsyncGeneratorProvider):
         messages: Messages,
         proxy: str = None,
         temperature: float = 0.5,
-        max_tokens: int = 8192.
+        max_tokens: int = 8192,
         webdriver: WebDriver = None,
         **kwargs
     ) -> AsyncResult:
diff --git a/g4f/Provider/DeepInfra.py b/g4f/Provider/DeepInfra.py
index 6cf52694..53c8d6b9 100644
--- a/g4f/Provider/DeepInfra.py
+++ b/g4f/Provider/DeepInfra.py
@@ -1,42 +1,41 @@
 from __future__ import annotations
 
-import json
 import requests
 from ..typing import AsyncResult, Messages
-from .base_provider import AsyncGeneratorProvider, ProviderModelMixin
-from ..requests import StreamSession, raise_for_status
+from .needs_auth.Openai import Openai
 
-class DeepInfra(AsyncGeneratorProvider, ProviderModelMixin):
+class DeepInfra(Openai):
     url = "https://deepinfra.com"
     working = True
+    needs_auth = False
     supports_stream = True
     supports_message_history = True
     default_model = 'meta-llama/Llama-2-70b-chat-hf'
-    
+
     @classmethod
     def get_models(cls):
         if not cls.models:
             url = 'https://api.deepinfra.com/models/featured'
             models = requests.get(url).json()
-            cls.models = [model['model_name'] for model in models]
+            cls.models = [model['model_name'] for model in models if model["type"] == "text-generation"]
         return cls.models
 
     @classmethod
-    async def create_async_generator(
+    def create_async_generator(
         cls,
         model: str,
         messages: Messages,
         stream: bool,
-        proxy: str = None,
-        timeout: int = 120,
-        auth: str = None,
+        api_base: str = "https://api.deepinfra.com/v1/openai",
+        temperature: float = 0.7,
+        max_tokens: int = 1028,
         **kwargs
     ) -> AsyncResult:
         headers = {
             'Accept-Encoding': 'gzip, deflate, br',
             'Accept-Language': 'en-US',
             'Connection': 'keep-alive',
-            'Content-Type': 'application/json',
+            'Content-Type': None,
             'Origin': 'https://deepinfra.com',
             'Referer': 'https://deepinfra.com/',
             'Sec-Fetch-Dest': 'empty',
@@ -44,46 +43,17 @@ class DeepInfra(AsyncGeneratorProvider, ProviderModelMixin):
             'Sec-Fetch-Site': 'same-site',
             'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36',
             'X-Deepinfra-Source': 'web-embed',
-            'accept': 'text/event-stream',
+            'Accept': None,
             'sec-ch-ua': '"Google Chrome";v="119", "Chromium";v="119", "Not?A_Brand";v="24"',
             'sec-ch-ua-mobile': '?0',
             'sec-ch-ua-platform': '"macOS"',
         }
-        if auth:
-            headers['Authorization'] = f"bearer {auth}" 
-            
-        async with StreamSession(headers=headers,
-            timeout=timeout,
-            proxies={"https": proxy},
-            impersonate="chrome110"
-        ) as session:
-            json_data = {
-                'model'   : cls.get_model(model),
-                'messages': messages,
-                'temperature': kwargs.get("temperature", 0.7),
-                'max_tokens': kwargs.get("max_tokens", 512),
-                'stop': kwargs.get("stop", []),
-                'stream'  : True
-            }
-            async with session.post('https://api.deepinfra.com/v1/openai/chat/completions',
-                                    json=json_data) as response:
-                await raise_for_status(response)
-                first = True
-                async for line in response.iter_lines():
-                    if not line.startswith(b"data: "):
-                        continue
-                    try:
-                        json_line = json.loads(line[6:])
-                        choices = json_line.get("choices", [{}])
-                        finish_reason = choices[0].get("finish_reason")
-                        if finish_reason:
-                            break
-                        token = choices[0].get("delta", {}).get("content")
-                        if token:
-                            if first:
-                                token = token.lstrip()
-                            if token:
-                                first = False
-                                yield token
-                    except Exception:
-                        raise RuntimeError(f"Response: {line}")
+        return super().create_async_generator(
+            model, messages,
+            stream=stream,
+            api_base=api_base,
+            temperature=temperature,
+            max_tokens=max_tokens,
+            headers=headers,
+            **kwargs
+        )
\ No newline at end of file
diff --git a/g4f/Provider/GeminiPro.py b/g4f/Provider/GeminiPro.py
index 4378a18c..214b7383 100644
--- a/g4f/Provider/GeminiPro.py
+++ b/g4f/Provider/GeminiPro.py
@@ -76,7 +76,7 @@ class GeminiPro(AsyncGeneratorProvider, ProviderModelMixin):
                 if not response.ok:
                     data = await response.json()
                     data = data[0] if isinstance(data, list) else data
-                    raise RuntimeError(f"Response {response.status}: {data["error"]["message"]}")
+                    raise RuntimeError(f"Response {response.status}: {data['error']['message']}")
                 if stream:
                     lines = []
                     async for chunk in response.content:
diff --git a/g4f/Provider/Local.py b/g4f/Provider/Local.py
new file mode 100644
index 00000000..b4d096de
--- /dev/null
+++ b/g4f/Provider/Local.py
@@ -0,0 +1,42 @@
+from __future__ import annotations
+
+from ..locals.models import get_models
+try:
+    from ..locals.provider import LocalProvider
+    has_requirements = True
+except ModuleNotFoundError:
+    has_requirements = False
+
+from ..typing import Messages, CreateResult
+from ..providers.base_provider import AbstractProvider, ProviderModelMixin
+from ..errors import MissingRequirementsError
+
+class Local(AbstractProvider, ProviderModelMixin):
+    working = True
+    supports_message_history = True
+    supports_system_message = True
+    supports_stream = True
+
+    @classmethod
+    def get_models(cls):
+        if not cls.models:
+            cls.models = list(get_models())
+            cls.default_model = cls.models[0]
+        return cls.models
+
+    @classmethod
+    def create_completion(
+        cls,
+        model: str,
+        messages: Messages,
+        stream: bool,
+        **kwargs
+    ) -> CreateResult:
+        if not has_requirements:
+            raise MissingRequirementsError('Install "gpt4all" package | pip install -U g4f[local]')
+        return LocalProvider.create_completion(
+            cls.get_model(model),
+            messages,
+            stream,
+            **kwargs
+        )
\ No newline at end of file
diff --git a/g4f/Provider/You.py b/g4f/Provider/You.py
index 9b040367..231f953f 100644
--- a/g4f/Provider/You.py
+++ b/g4f/Provider/You.py
@@ -17,6 +17,8 @@ from ..image import to_bytes, ImageResponse
 from ..requests import StreamSession, raise_for_status
 from ..errors import MissingRequirementsError
 
+from .you.har_file import get_dfp_telemetry_id
+
 class You(AsyncGeneratorProvider, ProviderModelMixin):
     url = "https://you.com"
     working = True
@@ -45,6 +47,7 @@ class You(AsyncGeneratorProvider, ProviderModelMixin):
         cls,
         model: str,
         messages: Messages,
+        stream: bool = True,
         image: ImageType = None,
         image_name: str = None,
         proxy: str = None,
@@ -56,7 +59,7 @@ class You(AsyncGeneratorProvider, ProviderModelMixin):
         if image is not None:
             chat_mode = "agent"
         elif not model or model == cls.default_model:
-            chat_mode = "default"
+            ...
         elif model.startswith("dall-e"):
             chat_mode = "create"
         else:
@@ -108,7 +111,7 @@ class You(AsyncGeneratorProvider, ProviderModelMixin):
                             data = json.loads(line[6:])
                         if event == "youChatToken" and event in data:
                             yield data[event]
-                        elif event == "youChatUpdate" and "t" in data:
+                        elif event == "youChatUpdate" and "t" in data and data["t"] is not None:
                             match = re.search(r"!\[fig\]\((.+?)\)", data["t"])
                             if match:
                                 yield ImageResponse(match.group(1), messages[-1]["content"])
@@ -177,6 +180,7 @@ class You(AsyncGeneratorProvider, ProviderModelMixin):
                 "X-SDK-Parent-Host": cls.url
             },
             json={
+                "dfp_telemetry_id": await get_dfp_telemetry_id(),
                 "email": f"{user_uuid}@gmail.com",
                 "password": f"{user_uuid}#{user_uuid}",
                 "session_duration_minutes": 129600
diff --git a/g4f/Provider/__init__.py b/g4f/Provider/__init__.py
index 50a5da31..1db29e19 100644
--- a/g4f/Provider/__init__.py
+++ b/g4f/Provider/__init__.py
@@ -33,6 +33,7 @@ from .HuggingFace      import HuggingFace
 from .Koala            import Koala
 from .Liaobots         import Liaobots
 from .Llama2           import Llama2
+from .Local            import Local
 from .PerplexityLabs   import PerplexityLabs
 from .Pi               import Pi
 from .Vercel           import Vercel
diff --git a/g4f/Provider/needs_auth/OpenAssistant.py b/g4f/Provider/deprecated/OpenAssistant.py
index e549b517..80cae3c2 100644
--- a/g4f/Provider/needs_auth/OpenAssistant.py
+++ b/g4f/Provider/deprecated/OpenAssistant.py
@@ -8,7 +8,6 @@ from ...typing import AsyncResult, Messages
 from ..base_provider import AsyncGeneratorProvider
 from ..helper import format_prompt, get_cookies
 
-
 class OpenAssistant(AsyncGeneratorProvider):
     url = "https://open-assistant.io/chat"
     needs_auth = True
diff --git a/g4f/Provider/deprecated/__init__.py b/g4f/Provider/deprecated/__init__.py
index f6b4a1d9..408f3913 100644
--- a/g4f/Provider/deprecated/__init__.py
+++ b/g4f/Provider/deprecated/__init__.py
@@ -31,4 +31,5 @@ from .FakeGpt       import FakeGpt
 from .GeekGpt       import GeekGpt
 from .GPTalk        import GPTalk
 from .Hashnode      import Hashnode
-from .Ylokh         import Ylokh
\ No newline at end of file
+from .Ylokh         import Ylokh
+from .OpenAssistant import OpenAssistant
\ No newline at end of file
diff --git a/g4f/Provider/needs_auth/Gemini.py b/g4f/Provider/needs_auth/Gemini.py
index 9013a4f8..fc9d9575 100644
--- a/g4f/Provider/needs_auth/Gemini.py
+++ b/g4f/Provider/needs_auth/Gemini.py
@@ -19,7 +19,7 @@ except ImportError:
 from ...typing import Messages, Cookies, ImageType, AsyncResult
 from ..base_provider import AsyncGeneratorProvider
 from ..helper import format_prompt, get_cookies
-from requests.raise_for_status import raise_for_status
+from ...requests.raise_for_status import raise_for_status
 from ...errors import MissingAuthError, MissingRequirementsError
 from ...image import to_bytes, ImageResponse
 from ...webdriver import get_browser, get_driver_cookies
diff --git a/g4f/Provider/needs_auth/Openai.py b/g4f/Provider/needs_auth/Openai.py
index b876cd0b..6cd2cf86 100644
--- a/g4f/Provider/needs_auth/Openai.py
+++ b/g4f/Provider/needs_auth/Openai.py
@@ -3,10 +3,10 @@ from __future__ import annotations
 import json
 
 from ..base_provider import AsyncGeneratorProvider, ProviderModelMixin, FinishReason
-from ...typing import AsyncResult, Messages
+from ...typing import Union, Optional, AsyncResult, Messages
 from ...requests.raise_for_status import raise_for_status
 from ...requests import StreamSession
-from ...errors import MissingAuthError
+from ...errors import MissingAuthError, ResponseError
 
 class Openai(AsyncGeneratorProvider, ProviderModelMixin):
     url = "https://openai.com"
@@ -27,48 +27,82 @@ class Openai(AsyncGeneratorProvider, ProviderModelMixin):
         temperature: float = None,
         max_tokens: int = None,
         top_p: float = None,
-        stop: str = None,
+        stop: Union[str, list[str]] = None,
         stream: bool = False,
+        headers: dict = None,
+        extra_data: dict = {},
         **kwargs
     ) -> AsyncResult:
-        if api_key is None:
+        if cls.needs_auth and api_key is None:
             raise MissingAuthError('Add a "api_key"')
         async with StreamSession(
             proxies={"all": proxy},
-            headers=cls.get_headers(api_key),
+            headers=cls.get_headers(stream, api_key, headers),
             timeout=timeout
         ) as session:
-            data = {
-                "messages": messages,
-                "model": cls.get_model(model),
-                "temperature": temperature,
-                "max_tokens": max_tokens,
-                "top_p": top_p,
-                "stop": stop,
-                "stream": stream,
-            }
+            data = filter_none(
+                messages=messages,
+                model=cls.get_model(model),
+                temperature=temperature,
+                max_tokens=max_tokens,
+                top_p=top_p,
+                stop=stop,
+                stream=stream,
+                **extra_data
+            )
             async with session.post(f"{api_base.rstrip('/')}/chat/completions", json=data) as response:
                 await raise_for_status(response)
-                async for line in response.iter_lines():
-                    if line.startswith(b"data: ") or not stream:
-                        async for chunk in cls.read_line(line[6:] if stream else line, stream):
-                            yield chunk
+                if not stream:
+                    data = await response.json()
+                    choice = data["choices"][0]
+                    if "content" in choice["message"]:
+                        yield choice["message"]["content"].strip()
+                    finish = cls.read_finish_reason(choice)
+                    if finish is not None:
+                        yield finish
+                else:
+                    first = True
+                    async for line in response.iter_lines():
+                        if line.startswith(b"data: "):
+                            chunk = line[6:]
+                            if chunk == b"[DONE]":
+                                break
+                            data = json.loads(chunk)
+                            if "error_message" in data:
+                                raise ResponseError(data["error_message"])
+                            choice = data["choices"][0]
+                            if "content" in choice["delta"] and choice["delta"]["content"]:
+                                delta = choice["delta"]["content"]
+                                if first:
+                                    delta = delta.lstrip()
+                                if delta:
+                                    first = False
+                                    yield delta
+                            finish = cls.read_finish_reason(choice)
+                            if finish is not None:
+                                yield finish
 
     @staticmethod
-    async def read_line(line: str, stream: bool):
-        if line == b"[DONE]":
-            return
-        choice = json.loads(line)["choices"][0]
-        if stream and "content" in choice["delta"] and choice["delta"]["content"]:
-            yield choice["delta"]["content"]
-        elif not stream and "content" in choice["message"]:
-            yield choice["message"]["content"]
+    def read_finish_reason(choice: dict) -> Optional[FinishReason]:
         if "finish_reason" in choice and choice["finish_reason"] is not None:
-            yield FinishReason(choice["finish_reason"])
+            return FinishReason(choice["finish_reason"])
 
-    @staticmethod
-    def get_headers(api_key: str) -> dict:
+    @classmethod
+    def get_headers(cls, stream: bool, api_key: str = None, headers: dict = None) -> dict:
         return {
-            "Authorization": f"Bearer {api_key}",
+            "Accept": "text/event-stream" if stream else "application/json",
             "Content-Type": "application/json",
-        }
\ No newline at end of file
+            **(
+                {"Authorization": f"Bearer {api_key}"}
+                if cls.needs_auth and api_key is not None
+                else {}
+            ),
+            **({} if headers is None else headers)
+        }
+
+def filter_none(**kwargs) -> dict:
+    return {
+        key: value
+        for key, value in kwargs.items()
+        if value is not None
+    }
\ No newline at end of file
diff --git a/g4f/Provider/needs_auth/ThebApi.py b/g4f/Provider/needs_auth/ThebApi.py
index 1c7baf8d..48879bcb 100644
--- a/g4f/Provider/needs_auth/ThebApi.py
+++ b/g4f/Provider/needs_auth/ThebApi.py
@@ -1,10 +1,7 @@
 from __future__ import annotations
 
-import requests
-
-from ...typing import Any, CreateResult, Messages
-from ..base_provider import AbstractProvider, ProviderModelMixin
-from ...errors import MissingAuthError
+from ...typing import CreateResult, Messages
+from .Openai import Openai
 
 models = {
     "theb-ai": "TheB.AI",
@@ -30,7 +27,7 @@ models = {
     "qwen-7b-chat": "Qwen 7B"
 }
 
-class ThebApi(AbstractProvider, ProviderModelMixin):
+class ThebApi(Openai):
     url = "https://theb.ai"
     working = True
     needs_auth = True
@@ -38,44 +35,26 @@ class ThebApi(AbstractProvider, ProviderModelMixin):
     models = list(models)
 
     @classmethod
-    def create_completion(
+    def create_async_generator(
         cls,
         model: str,
         messages: Messages,
-        stream: bool,
-        auth: str = None,
-        proxy: str = None,
+        api_base: str = "https://api.theb.ai/v1",
+        temperature: float = 1,
+        top_p: float = 1,
         **kwargs
     ) -> CreateResult:
-        if not auth:
-            raise MissingAuthError("Missing auth")
-        headers = {
-            'accept': 'application/json',
-            'authorization': f'Bearer {auth}',
-            'content-type': 'application/json',
-        }
-        # response = requests.get("https://api.baizhi.ai/v1/models", headers=headers).json()["data"]
-        # models = dict([(m["id"], m["name"]) for m in response])
-        # print(json.dumps(models, indent=4))
-        data: dict[str, Any] = {
-            "model": cls.get_model(model),
-            "messages": messages,
-            "stream": False,
+        if "auth" in kwargs:
+            kwargs["api_key"] = kwargs["auth"]
+        system_message = "\n".join([message["content"] for message in messages if message["role"] == "system"])
+        if not system_message:
+            system_message = "You are ChatGPT, a large language model trained by OpenAI, based on the GPT-3.5 architecture."
+        messages = [message for message in messages if message["role"] != "system"]
+        data = {
             "model_params": {
-                "system_prompt": kwargs.get("system_message", "You are ChatGPT, a large language model trained by OpenAI, based on the GPT-3.5 architecture."),
-                "temperature": 1,
-                "top_p": 1,
-                **kwargs
+                "system_prompt": system_message,
+                "temperature": temperature,
+                "top_p": top_p,
             }
         }
-        response = requests.post(
-            "https://api.theb.ai/v1/chat/completions",
-            headers=headers,
-            json=data,
-            proxies={"https": proxy}
-        )
-        try:
-            response.raise_for_status()
-            yield response.json()["choices"][0]["message"]["content"]
-        except:
-            raise RuntimeError(f"Response: {next(response.iter_lines()).decode()}")
\ No newline at end of file
+        return super().create_async_generator(model, messages, api_base=api_base, extra_data=data, **kwargs)
\ No newline at end of file
diff --git a/g4f/Provider/needs_auth/__init__.py b/g4f/Provider/needs_auth/__init__.py
index 92fa165b..581335e1 100644
--- a/g4f/Provider/needs_auth/__init__.py
+++ b/g4f/Provider/needs_auth/__init__.py
@@ -3,7 +3,6 @@ from .Raycast       import Raycast
 from .Theb          import Theb
 from .ThebApi       import ThebApi
 from .OpenaiChat    import OpenaiChat
-from .OpenAssistant import OpenAssistant
 from .Poe           import Poe
 from .Openai        import Openai
 from .Groq          import Groq
\ No newline at end of file
diff --git a/g4f/Provider/you/__init__.py b/g4f/Provider/you/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/g4f/Provider/you/__init__.py
diff --git a/g4f/Provider/you/har_file.py b/g4f/Provider/you/har_file.py
new file mode 100644
index 00000000..281f37e2
--- /dev/null
+++ b/g4f/Provider/you/har_file.py
@@ -0,0 +1,72 @@
+from __future__ import annotations
+
+import json
+import os
+import random
+import uuid
+
+from ...requests import StreamSession, raise_for_status
+
+class NoValidHarFileError(Exception):
+    ...
+
+class arkReq:
+    def __init__(self, arkURL, arkHeaders, arkBody, arkCookies, userAgent):
+        self.arkURL = arkURL
+        self.arkHeaders = arkHeaders
+        self.arkBody = arkBody
+        self.arkCookies = arkCookies
+        self.userAgent = userAgent
+
+arkPreURL = "https://telemetry.stytch.com/submit"
+chatArks: list = None
+
+def readHAR():
+    dirPath = "./"
+    harPath = []
+    chatArks = []
+    for root, dirs, files in os.walk(dirPath):
+        for file in files:
+            if file.endswith(".har"):
+                harPath.append(os.path.join(root, file))
+        if harPath:
+            break
+    if not harPath:
+        raise NoValidHarFileError("No .har file found")
+    for path in harPath:
+        with open(path, 'rb') as file:
+            try:
+                harFile = json.load(file)
+            except json.JSONDecodeError:
+                # Error: not a HAR file!
+                continue
+            for v in harFile['log']['entries']:
+                if arkPreURL in v['request']['url']:
+                    chatArks.append(parseHAREntry(v))
+    if not chatArks:
+        raise NoValidHarFileError("No telemetry in .har files found")
+    return chatArks
+
+def parseHAREntry(entry) -> arkReq:
+    tmpArk = arkReq(
+        arkURL=entry['request']['url'],
+        arkHeaders={h['name'].lower(): h['value'] for h in entry['request']['headers'] if h['name'].lower() not in ['content-length', 'cookie'] and not h['name'].startswith(':')},
+        arkBody=entry['request']['postData']['text'],
+        arkCookies={c['name']: c['value'] for c in entry['request']['cookies']},
+        userAgent=""
+    )
+    tmpArk.userAgent = tmpArk.arkHeaders.get('user-agent', '')
+    return tmpArk
+
+async def sendRequest(tmpArk: arkReq, proxy: str = None):
+    async with StreamSession(headers=tmpArk.arkHeaders, cookies=tmpArk.arkCookies, proxies={"all": proxy}) as session:
+        async with session.post(tmpArk.arkURL, data=tmpArk.arkBody) as response:
+            await raise_for_status(response)
+            return await response.text()
+
+async def get_dfp_telemetry_id(proxy: str = None):
+    return str(uuid.uuid4())
+    global chatArks
+    if chatArks is None:
+        chatArks = readHAR()
+    return await sendRequest(random.choice(chatArks), proxy)
\ No newline at end of file
diff --git a/g4f/__init__.py b/g4f/__init__.py
index 14405e92..017eb2e6 100644
--- a/g4f/__init__.py
+++ b/g4f/__init__.py
@@ -2,95 +2,14 @@ from __future__ import annotations
 
 import os
 
-from .errors   import *
-from .models   import Model, ModelUtils
-from .Provider import AsyncGeneratorProvider, ProviderUtils
-from .typing   import Messages, CreateResult, AsyncResult, Union
-from .cookies  import get_cookies, set_cookies
-from .         import debug, version
-from .providers.types import BaseRetryProvider, ProviderType
-from .providers.base_provider import ProviderModelMixin
-from .providers.retry_provider import IterProvider
-
-def get_model_and_provider(model    : Union[Model, str], 
-                           provider : Union[ProviderType, str, None], 
-                           stream   : bool,
-                           ignored  : list[str] = None,
-                           ignore_working: bool = False,
-                           ignore_stream: bool = False,
-                           **kwargs) -> tuple[str, ProviderType]:
-    """
-    Retrieves the model and provider based on input parameters.
-
-    Args:
-        model (Union[Model, str]): The model to use, either as an object or a string identifier.
-        provider (Union[ProviderType, str, None]): The provider to use, either as an object, a string identifier, or None.
-        stream (bool): Indicates if the operation should be performed as a stream.
-        ignored (list[str], optional): List of provider names to be ignored.
-        ignore_working (bool, optional): If True, ignores the working status of the provider.
-        ignore_stream (bool, optional): If True, ignores the streaming capability of the provider.
-
-    Returns:
-        tuple[str, ProviderType]: A tuple containing the model name and the provider type.
-
-    Raises:
-        ProviderNotFoundError: If the provider is not found.
-        ModelNotFoundError: If the model is not found.
-        ProviderNotWorkingError: If the provider is not working.
-        StreamNotSupportedError: If streaming is not supported by the provider.
-    """
-    if debug.version_check:
-        debug.version_check = False
-        version.utils.check_version()
-
-    if isinstance(provider, str):
-        if " " in provider:
-            provider_list = [ProviderUtils.convert[p] for p in provider.split() if p in ProviderUtils.convert]
-            if not provider_list:
-                raise ProviderNotFoundError(f'Providers not found: {provider}')
-            provider = IterProvider(provider_list)
-        elif provider in ProviderUtils.convert:
-            provider = ProviderUtils.convert[provider]
-        elif provider:
-            raise ProviderNotFoundError(f'Provider not found: {provider}')
-
-    if isinstance(model, str):
-        if model in ModelUtils.convert:
-            model = ModelUtils.convert[model]
-
-    if not provider:
-        if isinstance(model, str):
-            raise ModelNotFoundError(f'Model not found: {model}')
-        provider = model.best_provider
-
-    if not provider:
-        raise ProviderNotFoundError(f'No provider found for model: {model}')
-    
-    if isinstance(model, Model):
-        model = model.name
-
-    if not ignore_working and not provider.working:
-        raise ProviderNotWorkingError(f'{provider.__name__} is not working')
-
-    if not ignore_working and isinstance(provider, BaseRetryProvider):
-        provider.providers = [p for p in provider.providers if p.working]
-
-    if ignored and isinstance(provider, BaseRetryProvider):
-        provider.providers = [p for p in provider.providers if p.__name__ not in ignored]
-    
-    if not ignore_stream and not provider.supports_stream and stream:
-        raise StreamNotSupportedError(f'{provider.__name__} does not support "stream" argument')
-    
-    if debug.logging:
-        if model:
-            print(f'Using {provider.__name__} provider and {model} model')
-        else:
-            print(f'Using {provider.__name__} provider')
-
-    debug.last_provider = provider
-    debug.last_model = model
-
-    return model, provider
+from . import debug, version
+from .models import Model
+from .typing import Messages, CreateResult, AsyncResult, Union
+from .errors import StreamNotSupportedError, ModelNotAllowedError
+from .cookies import get_cookies, set_cookies
+from .providers.types import ProviderType
+from .providers.base_provider import AsyncGeneratorProvider
+from .client.service import get_model_and_provider, get_last_provider
 
 class ChatCompletion:
     @staticmethod
@@ -134,7 +53,7 @@ class ChatCompletion:
             ignore_stream or kwargs.get("ignore_stream_and_auth")
         )
 
-        if auth:
+        if auth is not None:
             kwargs['auth'] = auth
         
         if "proxy" not in kwargs:
@@ -154,6 +73,7 @@ class ChatCompletion:
                      provider : Union[ProviderType, str, None] = None,
                      stream   : bool = False,
                      ignored  : list[str] = None,
+                     ignore_working: bool = False,
                      patch_provider: callable = None,
                      **kwargs) -> Union[AsyncResult, str]:
         """
@@ -174,7 +94,7 @@ class ChatCompletion:
         Raises:
             StreamNotSupportedError: If streaming is requested but not supported by the provider.
         """
-        model, provider = get_model_and_provider(model, provider, False, ignored)
+        model, provider = get_model_and_provider(model, provider, False, ignored, ignore_working)
 
         if stream:
             if isinstance(provider, type) and issubclass(provider, AsyncGeneratorProvider):
@@ -225,26 +145,4 @@ class Completion:
 
         result = provider.create_completion(model, [{"role": "user", "content": prompt}], stream, **kwargs)
 
-        return result if stream else ''.join(result)
-    
-def get_last_provider(as_dict: bool = False) -> Union[ProviderType, dict[str, str]]:
-    """
-    Retrieves the last used provider.
-
-    Args:
-        as_dict (bool, optional): If True, returns the provider information as a dictionary.
-
-    Returns:
-        Union[ProviderType, dict[str, str]]: The last used provider, either as an object or a dictionary.
-    """
-    last = debug.last_provider
-    if isinstance(last, BaseRetryProvider):
-        last = last.last_provider
-    if last and as_dict:
-        return {
-            "name": last.__name__,
-            "url": last.url,
-            "model": debug.last_model,
-            "models": last.models if isinstance(last, ProviderModelMixin) else []
-        }
-    return last
\ No newline at end of file
+        return result if stream else ''.join(result)
\ No newline at end of file
diff --git a/g4f/api/__init__.py b/g4f/api/__init__.py
index b5af629e..579090fe 100644
--- a/g4f/api/__init__.py
+++ b/g4f/api/__init__.py
@@ -3,10 +3,13 @@ import json
 import uvicorn
 import nest_asyncio
 
-from fastapi           import FastAPI, Response, Request
+from fastapi import FastAPI, Response, Request
 from fastapi.responses import StreamingResponse, RedirectResponse, HTMLResponse, JSONResponse
-from pydantic          import BaseModel
-from typing            import List, Union
+from fastapi.exceptions import RequestValidationError
+from starlette.status import HTTP_422_UNPROCESSABLE_ENTITY
+from fastapi.encoders import jsonable_encoder
+from pydantic import BaseModel
+from typing import List, Union
 
 import g4f
 import g4f.debug
@@ -39,6 +42,25 @@ class Api:
         self.app = FastAPI()
 
         self.routes()
+        self.register_validation_exception_handler()
+
+    def register_validation_exception_handler(self):
+        @self.app.exception_handler(RequestValidationError)
+        async def validation_exception_handler(request: Request, exc: RequestValidationError):
+            details = exc.errors()
+            modified_details = []
+            for error in details:
+                modified_details.append(
+                    {
+                        "loc": error["loc"],
+                        "message": error["msg"],
+                        "type": error["type"],
+                    }
+                )
+            return JSONResponse(
+                status_code=HTTP_422_UNPROCESSABLE_ENTITY,
+                content=jsonable_encoder({"detail": modified_details}),
+            )
 
     def routes(self):
         @self.app.get("/")
diff --git a/g4f/client/__init__.py b/g4f/client/__init__.py
index e69de29b..5bb4ba35 100644
--- a/g4f/client/__init__.py
+++ b/g4f/client/__init__.py
@@ -0,0 +1,3 @@
+from .stubs import ChatCompletion, ChatCompletionChunk, ImagesResponse
+from .client import Client
+from .async_client import AsyncClient
\ No newline at end of file
diff --git a/g4f/client/async.py b/g4f/client/async_client.py
index 76e410fc..25de1c76 100644
--- a/g4f/client/async.py
+++ b/g4f/client/async_client.py
@@ -1,20 +1,21 @@
 from __future__ import annotations
 
-import re
-import os
 import time
 import random
 import string
 
 from .types import Client as BaseClient
-from .types import BaseProvider, ProviderType, FinishReason
-from .stubs import ChatCompletion, ChatCompletionChunk, Image, ImagesResponse
-from ..typing import Union, Iterator, Messages, ImageType, AsyncIerator
+from .types import ProviderType, FinishReason
+from .stubs import ChatCompletion, ChatCompletionChunk, ImagesResponse, Image
+from .types import AsyncIterResponse, ImageProvider
+from .image_models import ImageModels
+from .helper import filter_json, find_stop, filter_none, cast_iter_async
+from .service import get_last_provider, get_model_and_provider
+from ..typing import Union, Iterator, Messages, AsyncIterator, ImageType
+from ..errors import NoImageResponseError
 from ..image import ImageResponse as ImageProviderResponse
-from ..errors import NoImageResponseError, RateLimitError, MissingAuthError
-from .. import get_model_and_provider, get_last_provider
-from .helper import read_json, find_stop, filter_none
-ä
+from ..providers.base_provider import AsyncGeneratorProvider
+
 async def iter_response(
     response: AsyncIterator[str],
     stream: bool,
@@ -47,10 +48,10 @@ async def iter_response(
     else:
         if response_format is not None and "type" in response_format:
             if response_format["type"] == "json_object":
-                content = read_json(content)
+                content = filter_json(content)
         yield ChatCompletion(content, finish_reason, completion_id, int(time.time()))
 
-async def iter_append_model_and_provider(response: AsyncIterResponse) -> IterResponse:
+async def iter_append_model_and_provider(response: AsyncIterResponse) -> AsyncIterResponse:
     last_provider = None
     async for chunk in response:
         last_provider = get_last_provider(True) if last_provider is None else last_provider
@@ -58,51 +59,50 @@ async def iter_append_model_and_provider(response: AsyncIterResponse) -> IterRes
         chunk.provider =  last_provider.get("name")
         yield chunk
 
-class Client(BaseClient):
+class AsyncClient(BaseClient):
     def __init__(
         self,
+        provider: ProviderType = None,
+        image_provider: ImageProvider = None,
         **kwargs
     ):
         super().__init__(**kwargs)
         self.chat: Chat = Chat(self, provider)
         self.images: Images = Images(self, image_provider)
 
-async def cast_iter_async(iter):
-    for chunk in iter:
-        yield chunk
-
 def create_response(
     messages: Messages,
     model: str,
     provider: ProviderType = None,
     stream: bool = False,
-    response_format: dict = None,
+    proxy: str = None,
     max_tokens: int = None,
-    stop: Union[list[str], str] = None,
+    stop: list[str] = None,
     api_key: str = None,
     **kwargs
 ):
-    if hasattr(provider, "create_async_generator):
+    has_asnyc = isinstance(provider, type) and issubclass(provider, AsyncGeneratorProvider)
+    if has_asnyc:
         create = provider.create_async_generator
     else:
         create = provider.create_completion
     response = create(
         model, messages, stream,            
         **filter_none(
-            proxy=self.client.get_proxy(),
+            proxy=proxy,
             max_tokens=max_tokens,
             stop=stop,
-            api_key=self.client.api_key if api_key is None else api_key
+            api_key=api_key
         ),
         **kwargs
     )
-    if not hasattr(provider, "create_async_generator")
+    if not has_asnyc:
         response = cast_iter_async(response)
     return response
 
 class Completions():
-    def __init__(self, client: Client, provider: ProviderType = None):
-        self.client: Client = client
+    def __init__(self, client: AsyncClient, provider: ProviderType = None):
+        self.client: AsyncClient = client
         self.provider: ProviderType = provider
 
     def create(
@@ -111,6 +111,10 @@ class Completions():
         model: str,
         provider: ProviderType = None,
         stream: bool = False,
+        proxy: str = None,
+        max_tokens: int = None,
+        stop: Union[list[str], str] = None,
+        api_key: str = None,
         response_format: dict = None,
         ignored  : list[str] = None,
         ignore_working: bool = False,
@@ -123,11 +127,18 @@ class Completions():
             stream,
             ignored,
             ignore_working,
-            ignore_stream,
-            **kwargs
+            ignore_stream
         )
         stop = [stop] if isinstance(stop, str) else stop
-        response = create_response(messages, model, provider, stream, **kwargs)
+        response = create_response(
+            messages, model,
+            provider, stream,
+            proxy=self.client.get_proxy() if proxy is None else proxy,
+            max_tokens=max_tokens,
+            stop=stop,
+            api_key=self.client.api_key if api_key is None else api_key
+            **kwargs
+        )
         response = iter_response(response, stream, response_format, max_tokens, stop)
         response = iter_append_model_and_provider(response)
         return response if stream else anext(response)
@@ -135,44 +146,40 @@ class Completions():
 class Chat():
     completions: Completions
 
-    def __init__(self, client: Client, provider: ProviderType = None):
+    def __init__(self, client: AsyncClient, provider: ProviderType = None):
         self.completions = Completions(client, provider)
 
 async def iter_image_response(response: Iterator) -> Union[ImagesResponse, None]:
-    async for chunk in list(response):
+    async for chunk in response:
         if isinstance(chunk, ImageProviderResponse):
             return ImagesResponse([Image(image) for image in chunk.get_list()])
 
-def create_image(client: Client, provider: ProviderType, prompt: str, model: str = "", **kwargs) -> AsyncIterator:
+def create_image(client: AsyncClient, provider: ProviderType, prompt: str, model: str = "", **kwargs) -> AsyncIterator:
     prompt = f"create a image with: {prompt}"
+    if provider.__name__ == "You":
+        kwargs["chat_mode"] = "create"
     return provider.create_async_generator(
         model,
         [{"role": "user", "content": prompt}],
-        True,
+        stream=True,
         proxy=client.get_proxy(),
         **kwargs
     )
 
 class Images():
-    def __init__(self, client: Client, provider: ImageProvider = None):
-        self.client: Client = client
+    def __init__(self, client: AsyncClient, provider: ImageProvider = None):
+        self.client: AsyncClient = client
         self.provider: ImageProvider = provider
         self.models: ImageModels = ImageModels(client)
 
-    async def generate(self, prompt, model: str = None, **kwargs) -> ImagesResponse:
+    async def generate(self, prompt, model: str = "", **kwargs) -> ImagesResponse:
         provider = self.models.get(model, self.provider)
-        if isinstance(provider, type) and issubclass(provider, BaseProvider):
+        if isinstance(provider, type) and issubclass(provider, AsyncGeneratorProvider):
             response = create_image(self.client, provider, prompt, **kwargs)
         else:
-            try:
-                response = list(provider.create(prompt))
-            except (RateLimitError, MissingAuthError) as e:
-                # Fallback for default provider
-                if self.provider is None:
-                    response = create_image(self.client, self.models.you, prompt, model or "dall-e", **kwargs)
-                else:
-                    raise e
-        image = iter_image_response(response)
+            response = await provider.create_async(prompt)
+            return ImagesResponse([Image(image) for image in response.get_list()])
+        image = await iter_image_response(response)
         if image is None:
             raise NoImageResponseError()
         return image
@@ -180,7 +187,7 @@ class Images():
     async def create_variation(self, image: ImageType, model: str = None, **kwargs):
         provider = self.models.get(model, self.provider)
         result = None
-        if isinstance(provider, type) and issubclass(provider, BaseProvider):
+        if isinstance(provider, type) and issubclass(provider, AsyncGeneratorProvider):
             response = provider.create_async_generator(
                 "",
                 [{"role": "user", "content": "create a image like this"}],
@@ -189,10 +196,7 @@ class Images():
                 proxy=self.client.get_proxy(),
                 **kwargs
             )
-            async for chunk in response:
-                if isinstance(chunk, ImageProviderResponse):
-                    result = ([chunk.images] if isinstance(chunk.images, str) else chunk.images)
-                    result = ImagesResponse([Image(image)for image in result])
+            result = iter_image_response(response)
         if result is None:
             raise NoImageResponseError()
-        return result
+        return result
\ No newline at end of file
diff --git a/g4f/client.py b/g4f/client/client.py
index 2c4fe788..8ce5d932 100644
--- a/g4f/client.py
+++ b/g4f/client/client.py
@@ -1,40 +1,19 @@
 from __future__ import annotations
 
-import re
-import os
 import time
 import random
 import string
 
+from ..typing import Union, Iterator, Messages, ImageType
+from ..providers.types import BaseProvider, ProviderType, FinishReason
+from ..image import ImageResponse as ImageProviderResponse
+from ..errors import NoImageResponseError
 from .stubs import ChatCompletion, ChatCompletionChunk, Image, ImagesResponse
-from .typing import Union, Iterator, Messages, ImageType
-from .providers.types import BaseProvider, ProviderType, FinishReason
-from .image import ImageResponse as ImageProviderResponse
-from .errors import NoImageResponseError, RateLimitError, MissingAuthError
-from . import get_model_and_provider, get_last_provider
-
-from .Provider.BingCreateImages import BingCreateImages
-from .Provider.needs_auth import Gemini, OpenaiChat
-from .Provider.You import You
-
-ImageProvider = Union[BaseProvider, object]
-Proxies = Union[dict, str]
-IterResponse = Iterator[Union[ChatCompletion, ChatCompletionChunk]]
-
-def read_json(text: str) -> dict:
-    """
-    Parses JSON code block from a string.
-
-    Args:
-        text (str): A string containing a JSON code block.
-
-    Returns:
-        dict: A dictionary parsed from the JSON code block.
-    """
-    match = re.search(r"```(json|)\n(?P<code>[\S\s]+?)\n```", text)
-    if match:
-        return match.group("code")
-    return text
+from .image_models import ImageModels
+from .types import IterResponse, ImageProvider
+from .types import Client as BaseClient
+from .service import get_model_and_provider, get_last_provider
+from .helper import find_stop, filter_json, filter_none
 
 def iter_response(
     response: iter[str],
@@ -53,20 +32,7 @@ def iter_response(
         content += str(chunk)
         if max_tokens is not None and idx + 1 >= max_tokens:
             finish_reason = "length"
-        first = -1
-        word = None
-        if stop is not None:
-            for word in list(stop):
-                first = content.find(word)
-                if first != -1:
-                    content = content[:first]
-                    break
-            if stream and first != -1:
-                first = chunk.find(word)
-                if first != -1:
-                    chunk = chunk[:first]
-                else:
-                    first = 0
+        first, content, chunk = find_stop(stop, content, chunk if stream else None)
         if first != -1:
             finish_reason = "stop"
         if stream:
@@ -79,7 +45,7 @@ def iter_response(
     else:
         if response_format is not None and "type" in response_format:
             if response_format["type"] == "json_object":
-                content = read_json(content)
+                content = filter_json(content)
         yield ChatCompletion(content, finish_reason, completion_id, int(time.time()))
 
 def iter_append_model_and_provider(response: IterResponse) -> IterResponse:
@@ -90,37 +56,17 @@ def iter_append_model_and_provider(response: IterResponse) -> IterResponse:
         chunk.provider =  last_provider.get("name")
         yield chunk
 
-class Client():
-
+class Client(BaseClient):
     def __init__(
         self,
-        api_key: str = None,
-        proxies: Proxies = None,
         provider: ProviderType = None,
         image_provider: ImageProvider = None,
         **kwargs
     ) -> None:
-        self.api_key: str = api_key
-        self.proxies: Proxies = proxies
+        super().__init__(**kwargs)
         self.chat: Chat = Chat(self, provider)
         self.images: Images = Images(self, image_provider)
 
-    def get_proxy(self) -> Union[str, None]:
-        if isinstance(self.proxies, str):
-            return self.proxies
-        elif self.proxies is None:
-            return os.environ.get("G4F_PROXY")
-        elif "all" in self.proxies:
-            return self.proxies["all"]
-        elif "https" in self.proxies:
-            return self.proxies["https"]
-
-def filter_none(**kwargs):
-    for key in list(kwargs.keys()):
-        if kwargs[key] is None:
-            del kwargs[key]
-    return kwargs
-
 class Completions():
     def __init__(self, client: Client, provider: ProviderType = None):
         self.client: Client = client
@@ -132,6 +78,7 @@ class Completions():
         model: str,
         provider: ProviderType = None,
         stream: bool = False,
+        proxy: str = None,
         response_format: dict = None,
         max_tokens: int = None,
         stop: Union[list[str], str] = None,
@@ -148,13 +95,12 @@ class Completions():
             ignored,
             ignore_working,
             ignore_stream,
-            **kwargs
         )
         stop = [stop] if isinstance(stop, str) else stop
         response = provider.create_completion(
             model, messages, stream,            
             **filter_none(
-                proxy=self.client.get_proxy(),
+                proxy=self.client.get_proxy() if proxy is None else proxy,
                 max_tokens=max_tokens,
                 stop=stop,
                 api_key=self.client.api_key if api_key is None else api_key
@@ -171,18 +117,6 @@ class Chat():
     def __init__(self, client: Client, provider: ProviderType = None):
         self.completions = Completions(client, provider)
 
-class ImageModels():
-    gemini = Gemini
-    openai = OpenaiChat
-    you = You
-
-    def __init__(self, client: Client) -> None:
-        self.client = client
-        self.default = BingCreateImages(proxy=self.client.get_proxy())
-
-    def get(self, name: str, default: ImageProvider = None) -> ImageProvider:
-        return getattr(self, name) if hasattr(self, name) else default or self.default
-
 def iter_image_response(response: Iterator) -> Union[ImagesResponse, None]:
     for chunk in list(response):
         if isinstance(chunk, ImageProviderResponse):
@@ -190,10 +124,12 @@ def iter_image_response(response: Iterator) -> Union[ImagesResponse, None]:
 
 def create_image(client: Client, provider: ProviderType, prompt: str, model: str = "", **kwargs) -> Iterator:
     prompt = f"create a image with: {prompt}"
+    if provider.__name__ == "You":
+        kwargs["chat_mode"] = "create"
     return provider.create_completion(
         model,
         [{"role": "user", "content": prompt}],
-        True,
+        stream=True,
         proxy=client.get_proxy(),
         **kwargs
     )
@@ -209,14 +145,7 @@ class Images():
         if isinstance(provider, type) and issubclass(provider, BaseProvider):
             response = create_image(self.client, provider, prompt, **kwargs)
         else:
-            try:
-                response = list(provider.create(prompt))
-            except (RateLimitError, MissingAuthError) as e:
-                # Fallback for default provider
-                if self.provider is None:
-                    response = create_image(self.client, self.models.you, prompt, model or "dall-e", **kwargs)
-                else:
-                    raise e
+            response = list(provider.create(prompt))
         image = iter_image_response(response)
         if image is None:
             raise NoImageResponseError()
@@ -234,10 +163,7 @@ class Images():
                 proxy=self.client.get_proxy(),
                 **kwargs
             )
-            for chunk in response:
-                if isinstance(chunk, ImageProviderResponse):
-                    result = ([chunk.images] if isinstance(chunk.images, str) else chunk.images)
-                    result = ImagesResponse([Image(image)for image in result])
+            result = iter_image_response(response)
         if result is None:
             raise NoImageResponseError()
         return result
\ No newline at end of file
diff --git a/g4f/client/helper.py b/g4f/client/helper.py
index 32aa9183..c502d478 100644
--- a/g4f/client/helper.py
+++ b/g4f/client/helper.py
@@ -1,6 +1,9 @@
+from __future__ import annotations
+
 import re
+from typing import Iterable, AsyncIterator
 
-def read_json(text: str) -> dict:
+def filter_json(text: str) -> str:
     """
     Parses JSON code block from a string.
 
@@ -15,7 +18,7 @@ def read_json(text: str) -> dict:
         return match.group("code")
     return text
 
-def find_stop(stop, content: str, chunk: str):
+def find_stop(stop, content: str, chunk: str = None):
     first = -1
     word = None
     if stop is not None:
@@ -24,10 +27,21 @@ def find_stop(stop, content: str, chunk: str):
             if first != -1:
                 content = content[:first]
                 break
-        if stream and first != -1:
+        if chunk is not None and first != -1:
             first = chunk.find(word)
             if first != -1:
                 chunk = chunk[:first]
             else:
                 first = 0
     return first, content, chunk
+
+def filter_none(**kwargs) -> dict:
+    return {
+        key: value
+        for key, value in kwargs.items()
+        if value is not None
+    }
+
+async def cast_iter_async(iter: Iterable) -> AsyncIterator:
+    for chunk in iter:
+        yield chunk
\ No newline at end of file
diff --git a/g4f/client/image_models.py b/g4f/client/image_models.py
index 1fd2d0b5..db2ce09a 100644
--- a/g4f/client/image_models.py
+++ b/g4f/client/image_models.py
@@ -1,8 +1,10 @@
-from .Provider.BingCreateImages import BingCreateImages
-from .Provider.needs_auth import Gemini, OpenaiChat
-from ..Provider.You import You
+from __future__ import annotations
+
+from .types import Client, ImageProvider
 
-from .types import Client
+from ..Provider.BingCreateImages import BingCreateImages
+from ..Provider.needs_auth import Gemini, OpenaiChat
+from ..Provider.You import You
 
 class ImageModels():
     gemini = Gemini
diff --git a/g4f/client/service.py b/g4f/client/service.py
new file mode 100644
index 00000000..f3565f6d
--- /dev/null
+++ b/g4f/client/service.py
@@ -0,0 +1,114 @@
+from __future__ import annotations
+
+from typing import Union
+
+from .. import debug, version
+from ..errors import ProviderNotFoundError, ModelNotFoundError, ProviderNotWorkingError, StreamNotSupportedError
+from ..models import Model, ModelUtils
+from ..Provider import ProviderUtils
+from ..providers.types import BaseRetryProvider, ProviderType
+from ..providers.retry_provider import IterProvider
+
+def convert_to_provider(provider: str) -> ProviderType:
+    if " " in provider:
+        provider_list = [ProviderUtils.convert[p] for p in provider.split() if p in ProviderUtils.convert]
+        if not provider_list:
+            raise ProviderNotFoundError(f'Providers not found: {provider}')
+        provider = IterProvider(provider_list)
+    elif provider in ProviderUtils.convert:
+        provider = ProviderUtils.convert[provider]
+    elif provider:
+        raise ProviderNotFoundError(f'Provider not found: {provider}')
+    return provider
+
+def get_model_and_provider(model    : Union[Model, str], 
+                           provider : Union[ProviderType, str, None], 
+                           stream   : bool,
+                           ignored  : list[str] = None,
+                           ignore_working: bool = False,
+                           ignore_stream: bool = False) -> tuple[str, ProviderType]:
+    """
+    Retrieves the model and provider based on input parameters.
+
+    Args:
+        model (Union[Model, str]): The model to use, either as an object or a string identifier.
+        provider (Union[ProviderType, str, None]): The provider to use, either as an object, a string identifier, or None.
+        stream (bool): Indicates if the operation should be performed as a stream.
+        ignored (list[str], optional): List of provider names to be ignored.
+        ignore_working (bool, optional): If True, ignores the working status of the provider.
+        ignore_stream (bool, optional): If True, ignores the streaming capability of the provider.
+
+    Returns:
+        tuple[str, ProviderType]: A tuple containing the model name and the provider type.
+
+    Raises:
+        ProviderNotFoundError: If the provider is not found.
+        ModelNotFoundError: If the model is not found.
+        ProviderNotWorkingError: If the provider is not working.
+        StreamNotSupportedError: If streaming is not supported by the provider.
+    """
+    if debug.version_check:
+        debug.version_check = False
+        version.utils.check_version()
+
+    if isinstance(provider, str):
+        provider = convert_to_provider(provider)
+
+    if isinstance(model, str):
+        if model in ModelUtils.convert:
+            model = ModelUtils.convert[model]
+
+    if not provider:
+        if isinstance(model, str):
+            raise ModelNotFoundError(f'Model not found: {model}')
+        provider = model.best_provider
+
+    if not provider:
+        raise ProviderNotFoundError(f'No provider found for model: {model}')
+
+    if isinstance(model, Model):
+        model = model.name
+
+    if not ignore_working and not provider.working:
+        raise ProviderNotWorkingError(f'{provider.__name__} is not working')
+
+    if not ignore_working and isinstance(provider, BaseRetryProvider):
+        provider.providers = [p for p in provider.providers if p.working]
+
+    if ignored and isinstance(provider, BaseRetryProvider):
+        provider.providers = [p for p in provider.providers if p.__name__ not in ignored]
+
+    if not ignore_stream and not provider.supports_stream and stream:
+        raise StreamNotSupportedError(f'{provider.__name__} does not support "stream" argument')
+
+    if debug.logging:
+        if model:
+            print(f'Using {provider.__name__} provider and {model} model')
+        else:
+            print(f'Using {provider.__name__} provider')
+
+    debug.last_provider = provider
+    debug.last_model = model
+
+    return model, provider
+
+def get_last_provider(as_dict: bool = False) -> Union[ProviderType, dict[str, str]]:
+    """
+    Retrieves the last used provider.
+
+    Args:
+        as_dict (bool, optional): If True, returns the provider information as a dictionary.
+
+    Returns:
+        Union[ProviderType, dict[str, str]]: The last used provider, either as an object or a dictionary.
+    """
+    last = debug.last_provider
+    if isinstance(last, BaseRetryProvider):
+        last = last.last_provider
+    if last and as_dict:
+        return {
+            "name": last.__name__,
+            "url": last.url,
+            "model": debug.last_model,
+        }
+    return last
\ No newline at end of file
diff --git a/g4f/client/types.py b/g4f/client/types.py
index b21ff03a..100be432 100644
--- a/g4f/client/types.py
+++ b/g4f/client/types.py
@@ -1,9 +1,15 @@
+from __future__ import annotations
+
+import os
+
+from .stubs import ChatCompletion, ChatCompletionChunk
 from ..providers.types import BaseProvider, ProviderType, FinishReason
-from typing import Union, Iterator
+from typing import Union, Iterator, AsyncIterator
 
 ImageProvider = Union[BaseProvider, object]
 Proxies = Union[dict, str]
 IterResponse = Iterator[Union[ChatCompletion, ChatCompletionChunk]]
+AsyncIterResponse = AsyncIterator[Union[ChatCompletion, ChatCompletionChunk]]
 
 class ClientProxyMixin():
     def get_proxy(self) -> Union[str, None]:
@@ -21,9 +27,7 @@ class Client(ClientProxyMixin):
         self,
         api_key: str = None,
         proxies: Proxies = None,
-        provider: ProviderType = None,
-        image_provider: ImageProvider = None,
         **kwargs
     ) -> None:
         self.api_key: str = api_key
-        self.proxies: Proxies = proxies
+        self.proxies: Proxies = proxies
\ No newline at end of file
diff --git a/g4f/gui/__init__.py b/g4f/gui/__init__.py
index 16b03e4c..f5e448ad 100644
--- a/g4f/gui/__init__.py
+++ b/g4f/gui/__init__.py
@@ -10,7 +10,7 @@ except ImportError as e:
 
 def run_gui(host: str = '0.0.0.0', port: int = 8080, debug: bool = False) -> None:
     if import_error is not None:
-        raise MissingRequirementsError(f'Install "gui" requirements | pip install g4f[gui] -U\n{import_error}')
+        raise MissingRequirementsError(f'Install "gui" requirements | pip install -U g4f[gui]\n{import_error}')
 
     if debug:
         from g4f import debug
@@ -20,7 +20,7 @@ def run_gui(host: str = '0.0.0.0', port: int = 8080, debug: bool = False) -> Non
         'port' : port,
         'debug': debug
     }
-    
+
     site = Website(app)
     for route in site.routes:
         app.add_url_rule(
@@ -28,7 +28,7 @@ def run_gui(host: str = '0.0.0.0', port: int = 8080, debug: bool = False) -> Non
             view_func = site.routes[route]['function'],
             methods   = site.routes[route]['methods'],
         )
-    
+
     backend_api  = Backend_Api(app)
     for route in backend_api.routes:
         app.add_url_rule(
@@ -36,7 +36,7 @@ def run_gui(host: str = '0.0.0.0', port: int = 8080, debug: bool = False) -> Non
             view_func = backend_api.routes[route]['function'],
             methods   = backend_api.routes[route]['methods'],
         )
-    
+
     print(f"Running on port {config['port']}")
     app.run(**config)
     print(f"Closing port {config['port']}")
diff --git a/g4f/gui/client/index.html b/g4f/gui/client/index.html
index f63932e7..7103b9c3 100644
--- a/g4f/gui/client/index.html
+++ b/g4f/gui/client/index.html
@@ -77,17 +77,35 @@
             </div>
         </div>
         <div class="settings">
-            <textarea name="OpenaiChat[api_key]" class="box" placeholder="OpenaiChat: accessToken"></textarea>
-             <div class="field">
-                <input id="auto_continue" type="checkbox" name="OpenaiChat[auto_continue]" checked/>
-                <label for="auto_continue" title=""></label>
-                <span class="about">Auto Continue</span>
+            <div class="field box">
+                <label for="OpenaiChat-api_key" class="label" title="">OpenaiChat: access_token</label>
+                <textarea id="OpenaiChat-api_key" name="OpenaiChat[api_key]" placeholder="..."></textarea>
+            </div>
+            <div class="field">
+                <span class="label">OpenaiChat: Auto continue</span>
+                <input id="OpenaiChat-auto_continue" type="checkbox" name="OpenaiChat[auto_continue]" checked/>
+                <label for="OpenaiChat-auto_continue" class="toogle" title=""></label>
+            </div>
+            <div class="field box">
+                <label for="Bing-api_key" class="label" title="">Bing: "_U" cookie</label>
+                <textarea id="Bing-api_key" name="Bing[api_key]" placeholder="..."></textarea>
+            </div>
+            <div class="field box">
+                <label for="Gemini-api_key" class="label" title="">Gemini: Auth cookies</label>
+                <textarea id="Gemini-api_key" name="Gemini[api_key]" placeholder="..."></textarea>
+            </div>
+            <div class="field box">
+                <label for="Openai-api_key" class="label" title="">Openai: api_key</label>
+                <textarea id="Openai-api_key" name="Openai[api_key]" placeholder="..."></textarea>
+            </div>
+            <div class="field box">
+                <label for="GeminiPro-api_key" class="label" title="">GeminiPro: api_key</label>
+                <textarea id="GeminiPro-api_key" name="GeminiPro[api_key]" placeholder="..."></textarea>
+            </div>
+            <div class="field box">
+                <label for="HuggingFace-api_key" class="label" title="">HuggingFace: api_key</label>
+                <textarea id="HuggingFace-api_key" name="HuggingFace[api_key]" placeholder="..."></textarea>
             </div>
-            <textarea name="Bing[api_key]" class="box" placeholder="Bing: _U cookie"></textarea>
-            <textarea name="Gemini[api_key]" class="box" placeholder="Gemini: Auth cookies"></textarea>
-           <textarea name="Openai[api_key]" class="box" placeholder="Openai: api_key></textarea>
-           <textarea name="Grok[api_key]" class="box" placeholder="Grok: api_key"></textarea>
-           <textarea name="GeminiPro[api_key]" class="box" placeholder="GeminiPro: api_key"></textarea> 
         </div>
         <div class="conversation">
             <textarea id="systemPrompt" class="box" placeholder="System prompt"></textarea>    
diff --git a/g4f/gui/client/static/css/style.css b/g4f/gui/client/static/css/style.css
index 25fc4911..b0f7a4a0 100644
--- a/g4f/gui/client/static/css/style.css
+++ b/g4f/gui/client/static/css/style.css
@@ -520,7 +520,7 @@ label[for="camera"] {
 }
 
 .buttons label,
-.settings label {
+.settings label.toogle {
     cursor: pointer;
     text-indent: -9999px;
     width: 50px;
@@ -538,7 +538,7 @@ label[for="camera"] {
 }
 
 .buttons label:after,
-.settings label:after {
+.settings label.toogle:after {
     content: "";
     position: absolute;
     top: 50%;
@@ -560,17 +560,13 @@ label[for="camera"] {
     left: calc(100% - 5px - 20px);
 }
 
-.buttons, .settings {
+.buttons {
     display: flex;
     align-items: center;
     justify-content: left;
     width: 100%;
 }
 
-.settings textarea{
-    height: 20px;
-}
-
 .field {
     height: fit-content;
     display: flex;
@@ -1017,7 +1013,7 @@ a:-webkit-any-link {
     border: 1px solid #e4d4ffc9;
 }
 
-#systemPrompt {
+#systemPrompt, .settings textarea {
     font-size: 15px;
     width: 100%;
     color: var(--colour-3);
@@ -1028,6 +1024,30 @@ a:-webkit-any-link {
     resize: vertical;
 }
 
+.settings {
+    width: 100%;
+    display: none;
+}
+
+.settings .field {
+    margin: var(--inner-gap) 0;
+}
+
+.settings textarea {
+    background-color: transparent;
+    border: none;
+    padding: var(--inner-gap) 0;
+}
+
+.settings .label {
+    font-size: 15px;
+    padding: var(--inner-gap) 0;
+    width: fit-content;
+    min-width: 190px;
+    margin-left: var(--section-gap);
+    white-space:nowrap;
+}
+
 ::-webkit-scrollbar {
     width: 10px;
 }
diff --git a/g4f/gui/server/api.py b/g4f/gui/server/api.py
index 2c6279d1..7c09fdbe 100644
--- a/g4f/gui/server/api.py
+++ b/g4f/gui/server/api.py
@@ -98,7 +98,7 @@ class Api():
         if conversation_id and provider in conversations and conversation_id in conversations[provider]:
             kwargs["conversation"] = conversations[provider][conversation_id]
 
-        model = json_data.get('model', models.default)
+        model = json_data.get('model') or models.default
 
         return {
             "model": model,
@@ -169,4 +169,8 @@ def get_error_message(exception: Exception) -> str:
     Returns:
         str: A formatted error message string.
     """
-    return f"{get_last_provider().__name__}: {type(exception).__name__}: {exception}"
\ No newline at end of file
+    message = f"{type(exception).__name__}: {exception}"
+    provider = get_last_provider()
+    if provider is None:
+        return message
+    return f"{provider.__name__}: {message}"
\ No newline at end of file
diff --git a/g4f/gui/webview.py b/g4f/gui/webview.py
index 1557279c..dce47ecc 100644
--- a/g4f/gui/webview.py
+++ b/g4f/gui/webview.py
@@ -31,7 +31,7 @@ def run_webview(
         f"g4f - {g4f.version.utils.current_version}",
         os.path.join(dirname, "client/index.html"),
         text_select=True,
-        js_api=Api(),
+        js_api=JsApi(),
     )
     if has_platformdirs and storage_path is None:
         storage_path = user_config_dir("g4f-webview")
diff --git a/g4f/local/__init__.py b/g4f/local/__init__.py
index c9d3d74a..117cd48d 100644
--- a/g4f/local/__init__.py
+++ b/g4f/local/__init__.py
@@ -1,17 +1,19 @@
-from ..typing import Union, Iterator, Messages
-from ..stubs  import ChatCompletion, ChatCompletionChunk
-from ._engine import LocalProvider
-from ._models import models
-from ..client import iter_response, filter_none, IterResponse
+from __future__ import annotations
+
+from ..typing import Union, Messages
+from ..locals.provider import LocalProvider
+from ..locals.models import get_models
+from ..client.client import iter_response, filter_none
+from ..client.types import IterResponse
 
 class LocalClient():
     def __init__(self, **kwargs) -> None:
         self.chat: Chat = Chat(self)
-    
+
     @staticmethod
     def list_models():
-        return list(models.keys())
-        
+        return list(get_models())
+
 class Completions():
     def __init__(self, client: LocalClient):
         self.client: LocalClient = client
@@ -25,8 +27,7 @@ class Completions():
         max_tokens: int = None,
         stop: Union[list[str], str] = None,
         **kwargs
-    ) -> Union[ChatCompletion, Iterator[ChatCompletionChunk]]:
-
+    ) -> IterResponse:
         stop = [stop] if isinstance(stop, str) else stop
         response = LocalProvider.create_completion(
             model, messages, stream,            
diff --git a/g4f/local/_engine.py b/g4f/local/_engine.py
deleted file mode 100644
index 917de16c..00000000
--- a/g4f/local/_engine.py
+++ /dev/null
@@ -1,42 +0,0 @@
-import os
-
-from gpt4all  import GPT4All
-from ._models import models
-
-class LocalProvider:
-    @staticmethod
-    def create_completion(model, messages, stream, **kwargs):
-        if model not in models:
-            raise ValueError(f"Model '{model}' not found / not yet implemented")
-        
-        model           = models[model]
-        model_dir       = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'models/')
-        full_model_path = os.path.join(model_dir, model['path'])
-        
-        if not os.path.isfile(full_model_path):
-            print(f"Model file '{full_model_path}' not found.")
-            download = input(f'Do you want to download {model["path"]} ? [y/n]')
-            
-            if download in ['y', 'Y']:
-                GPT4All.download_model(model['path'], model_dir)
-            else:
-                raise ValueError(f"Model '{model['path']}' not found.")
-        
-        model = GPT4All(model_name=model['path'],
-                               #n_threads=8,
-                               verbose=False,
-                               allow_download=False,
-                               model_path=model_dir)
-        
-        system_template = next((message['content'] for message in messages if message['role'] == 'system'), 
-                               'A chat between a curious user and an artificial intelligence assistant.')
-        
-        prompt_template = 'USER: {0}\nASSISTANT: '
-        conversation    = '\n'.join(f"{msg['role'].upper()}: {msg['content']}" for msg in messages) + "\nASSISTANT: "
-        
-        with model.chat_session(system_template, prompt_template):
-            if stream:
-                for token in model.generate(conversation, streaming=True):
-                    yield token
-            else:
-                yield model.generate(conversation)
\ No newline at end of file
diff --git a/g4f/local/_models.py b/g4f/local/_models.py
deleted file mode 100644
index ec36fe41..00000000
--- a/g4f/local/_models.py
+++ /dev/null
@@ -1,86 +0,0 @@
-models = {
-    "mistral-7b": {
-        "path": "mistral-7b-openorca.gguf2.Q4_0.gguf",
-        "ram": "8",
-        "prompt": "<|im_start|>user\n%1<|im_end|>\n<|im_start|>assistant\n",
-        "system": "<|im_start|>system\nYou are MistralOrca, a large language model trained by Alignment Lab AI. For multi-step problems, write out your reasoning for each step.\n<|im_end|>"
-    },
-    "mistral-7b-instruct": {
-        "path": "mistral-7b-instruct-v0.1.Q4_0.gguf",
-        "ram": "8",
-        "prompt": "[INST] %1 [/INST]",
-        "system": None
-    },
-    "gpt4all-falcon": {
-        "path": "gpt4all-falcon-newbpe-q4_0.gguf",
-        "ram": "8",
-        "prompt": "### Instruction:\n%1\n### Response:\n",
-        "system": None
-    },
-    "orca-2": {
-        "path": "orca-2-13b.Q4_0.gguf",
-        "ram": "16",
-        "prompt": None,
-        "system": None
-    },
-    "wizardlm-13b": {
-        "path": "wizardlm-13b-v1.2.Q4_0.gguf",
-        "ram": "16",
-        "prompt": None,
-        "system": None
-    },
-    "nous-hermes-llama2": {
-        "path": "nous-hermes-llama2-13b.Q4_0.gguf",
-        "ram": "16",
-        "prompt": "### Instruction:\n%1\n### Response:\n",
-        "system": None
-    },
-    "gpt4all-13b-snoozy": {
-        "path": "gpt4all-13b-snoozy-q4_0.gguf",
-        "ram": "16",
-        "prompt": None,
-        "system": None
-    },
-    "mpt-7b-chat": {
-        "path": "mpt-7b-chat-newbpe-q4_0.gguf",
-        "ram": "8",
-        "prompt": "<|im_start|>user\n%1<|im_end|>\n<|im_start|>assistant\n",
-        "system": "<|im_start|>system\n- You are a helpful assistant chatbot trained by MosaicML.\n- You answer questions.\n- You are excited to be able to help the user, but will refuse to do anything that could be considered harmful to the user.\n- You are more than just an information source, you are also able to write poetry, short stories, and make jokes.<|im_end|>"
-    },
-    "orca-mini-3b": {
-        "path": "orca-mini-3b-gguf2-q4_0.gguf",
-        "ram": "4",
-        "prompt": "### User:\n%1\n### Response:\n",
-        "system": "### System:\nYou are an AI assistant that follows instruction extremely well. Help as much as you can.\n\n"
-    },
-    "replit-code-3b": {
-        "path": "replit-code-v1_5-3b-newbpe-q4_0.gguf",
-        "ram": "4",
-        "prompt": "%1",
-        "system": None
-    },
-    "starcoder": {
-        "path": "starcoder-newbpe-q4_0.gguf",
-        "ram": "4",
-        "prompt": "%1",
-        "system": None
-    },
-    "rift-coder-7b": {
-        "path": "rift-coder-v0-7b-q4_0.gguf",
-        "ram": "8",
-        "prompt": "%1",
-        "system": None
-    },
-    "all-MiniLM-L6-v2": {
-        "path": "all-MiniLM-L6-v2-f16.gguf",
-        "ram": "1",
-        "prompt": None,
-        "system": None
-    },
-    "mistral-7b-german": {
-        "path": "em_german_mistral_v01.Q4_0.gguf",
-        "ram": "8",
-        "prompt": "USER: %1 ASSISTANT: ",
-        "system": "Du bist ein hilfreicher Assistent. "
-    }
-}
\ No newline at end of file
diff --git a/g4f/local/models/model-here b/g4f/local/models/model-here
deleted file mode 100644
index 945c9b46..00000000
--- a/g4f/local/models/model-here
+++ /dev/null
@@ -1 +0,0 @@
-.
\ No newline at end of file
diff --git a/g4f/locals/__init__.py b/g4f/locals/__init__.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/g4f/locals/__init__.py
diff --git a/g4f/locals/models.py b/g4f/locals/models.py
new file mode 100644
index 00000000..f82f5448
--- /dev/null
+++ b/g4f/locals/models.py
@@ -0,0 +1,51 @@
+from __future__ import annotations
+
+import os
+import requests
+import json
+
+from ..requests.raise_for_status import raise_for_status
+
+def load_models():
+    response = requests.get("https://gpt4all.io/models/models3.json")
+    raise_for_status(response)
+    return format_models(response.json())
+
+def get_model_name(filename: str) -> str:
+    name = filename.split(".", 1)[0]
+    for replace in ["-v1_5", "-v1", "-q4_0", "_v01", "-v0", "-f16", "-gguf2", "-newbpe"]:
+        name = name.replace(replace, "")
+    return name
+
+def format_models(models: list) -> dict:
+    return {get_model_name(model["filename"]): {
+        "path": model["filename"],
+        "ram": model["ramrequired"],
+        "prompt": model["promptTemplate"] if "promptTemplate" in model else None,
+        "system": model["systemPrompt"] if "systemPrompt" in model else None,
+    } for model in models}
+
+def read_models(file_path: str):
+    with open(file_path, "rb") as f:
+         return json.load(f)
+
+def save_models(file_path: str, data):
+    with open(file_path, 'w') as f:
+        json.dump(data, f, indent=4)
+
+def get_model_dir() -> str:
+    local_dir = os.path.dirname(os.path.abspath(__file__))
+    project_dir = os.path.dirname(os.path.dirname(local_dir))
+    model_dir = os.path.join(project_dir, "models")
+    if os.path.exists(model_dir):
+        return model_dir
+
+def get_models() -> dict[str, dict]:
+    model_dir = get_model_dir()
+    file_path = os.path.join(model_dir, "models.json")
+    if os.path.isfile(file_path):
+        return read_models(file_path)
+    else:
+        models = load_models()
+        save_models(file_path, models)
+        return models
\ No newline at end of file
diff --git a/g4f/locals/provider.py b/g4f/locals/provider.py
new file mode 100644
index 00000000..45041539
--- /dev/null
+++ b/g4f/locals/provider.py
@@ -0,0 +1,74 @@
+from __future__ import annotations
+
+import os
+
+from gpt4all import GPT4All
+from .models import get_models
+from ..typing import Messages
+
+MODEL_LIST: dict[str, dict] = None
+
+def find_model_dir(model_file: str) -> str:
+    local_dir = os.path.dirname(os.path.abspath(__file__))
+    project_dir = os.path.dirname(os.path.dirname(local_dir))
+
+    new_model_dir = os.path.join(project_dir, "models")
+    new_model_file = os.path.join(new_model_dir, model_file)
+    if os.path.isfile(new_model_file):
+        return new_model_dir
+
+    old_model_dir = os.path.join(local_dir, "models")
+    old_model_file = os.path.join(old_model_dir, model_file)
+    if os.path.isfile(old_model_file):
+        return old_model_dir
+
+    working_dir = "./"
+    for root, dirs, files in os.walk(working_dir):
+        if model_file in files:
+            return root
+
+    return new_model_dir
+
+class LocalProvider:
+    @staticmethod
+    def create_completion(model: str, messages: Messages, stream: bool = False, **kwargs):
+        global MODEL_LIST
+        if MODEL_LIST is None:
+            MODEL_LIST = get_models()
+        if model not in MODEL_LIST:
+            raise ValueError(f'Model "{model}" not found / not yet implemented')
+
+        model = MODEL_LIST[model]
+        model_file = model["path"]
+        model_dir = find_model_dir(model_file)
+        if not os.path.isfile(os.path.join(model_dir, model_file)):
+            print(f'Model file "models/{model_file}" not found.')
+            download = input(f"Do you want to download {model_file}? [y/n]: ")
+            if download in ["y", "Y"]:
+                GPT4All.download_model(model_file, model_dir)
+            else:
+                raise ValueError(f'Model "{model_file}" not found.')
+
+        model = GPT4All(model_name=model_file,
+                        #n_threads=8,
+                        verbose=False,
+                        allow_download=False,
+                        model_path=model_dir)
+
+        system_message = "\n".join(message["content"] for message in messages if message["role"] == "system")
+        if system_message:
+            system_message = "A chat between a curious user and an artificial intelligence assistant."
+
+        prompt_template = "USER: {0}\nASSISTANT: "
+        conversation    = "\n" . join(
+            f"{message['role'].upper()}: {message['content']}"
+            for message in messages
+            if message["role"] != "system"
+        ) + "\nASSISTANT: "
+
+        with model.chat_session(system_message, prompt_template):
+            if stream:
+                for token in model.generate(conversation, streaming=True):
+                    yield token
+            else:
+                yield model.generate(conversation)
\ No newline at end of file
diff --git a/g4f/providers/types.py b/g4f/providers/types.py
index a3eeb99e..f33ea969 100644
--- a/g4f/providers/types.py
+++ b/g4f/providers/types.py
@@ -96,6 +96,7 @@ class BaseRetryProvider(BaseProvider):
 
     __name__: str = "RetryProvider"
     supports_stream: bool = True
+    last_provider: Type[BaseProvider] = None
 
 ProviderType = Union[Type[BaseProvider], BaseRetryProvider]