add cohere provider.

g4f/Provider/Cohere.py

@@ -0,0 +1,106 @@
+from __future__ import annotations
+
+import json, random, requests, threading
+from aiohttp import ClientSession
+
+from ..typing import CreateResult, Messages
+from .base_provider import AbstractProvider
+from .helper import format_prompt
+
+class Cohere(AbstractProvider):
+    url                   = "https://cohereforai-c4ai-command-r-plus.hf.space"
+    working               = True
+    supports_gpt_35_turbo = False
+    supports_gpt_4        = False
+    supports_stream       = True
+
+    @staticmethod
+    def create_completion(
+        model: str,
+        messages: Messages,
+        stream: bool,
+        proxy: str = None,
+        max_retries: int = 6,
+        **kwargs
+    ) -> CreateResult:
+
+        prompt = format_prompt(messages)
+
+        headers = {
+            'accept': 'text/event-stream',
+            'accept-language': 'en,fr-FR;q=0.9,fr;q=0.8,es-ES;q=0.7,es;q=0.6,en-US;q=0.5,am;q=0.4,de;q=0.3',
+            'cache-control': 'no-cache',
+            'pragma': 'no-cache',
+            'referer': 'https://cohereforai-c4ai-command-r-plus.hf.space/?__theme=light',
+            'sec-ch-ua': '"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"',
+            'sec-ch-ua-mobile': '?0',
+            'sec-ch-ua-platform': '"macOS"',
+            'sec-fetch-dest': 'empty',
+            'sec-fetch-mode': 'cors',
+            'sec-fetch-site': 'same-origin',
+            'user-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36',
+        }
+
+        session_hash = ''.join(random.choices("abcdefghijklmnopqrstuvwxyz0123456789", k=11))
+
+        params = {
+            'fn_index': '1',
+            'session_hash': session_hash,
+        }
+
+        response = requests.get(
+            'https://cohereforai-c4ai-command-r-plus.hf.space/queue/join',
+            params=params,
+            headers=headers,
+            stream=True
+        )
+
+        completion = ''
+
+        for line in response.iter_lines():
+            if line:
+                json_data = json.loads(line[6:])
+
+                if b"send_data" in (line):
+                    event_id = json_data["event_id"]
+
+                    threading.Thread(target=send_data, args=[session_hash, event_id, prompt]).start()
+
+                if b"process_generating" in line or b"process_completed" in line:
+                    token = (json_data['output']['data'][0][0][1])
+
+                    yield (token.replace(completion, ""))
+                    completion = token
+
+def send_data(session_hash, event_id, prompt):
+    headers = {
+        'accept': '*/*',
+        'accept-language': 'en,fr-FR;q=0.9,fr;q=0.8,es-ES;q=0.7,es;q=0.6,en-US;q=0.5,am;q=0.4,de;q=0.3',
+        'cache-control': 'no-cache',
+        'content-type': 'application/json',
+        'origin': 'https://cohereforai-c4ai-command-r-plus.hf.space',
+        'pragma': 'no-cache',
+        'referer': 'https://cohereforai-c4ai-command-r-plus.hf.space/?__theme=light',
+        'sec-ch-ua': '"Google Chrome";v="123", "Not:A-Brand";v="8", "Chromium";v="123"',
+        'sec-ch-ua-mobile': '?0',
+        'sec-ch-ua-platform': '"macOS"',
+        'sec-fetch-dest': 'empty',
+        'sec-fetch-mode': 'cors',
+        'sec-fetch-site': 'same-origin',
+        'user-agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36',
+    }
+
+    json_data = {
+        'data': [
+            prompt,
+            '',
+            [],
+        ],
+        'event_data': None,
+        'fn_index': 1,
+        'session_hash': session_hash,
+        'event_id': event_id
+    }
+
+    requests.post('https://cohereforai-c4ai-command-r-plus.hf.space/queue/data',
+                    json = json_data, headers=headers)

g4f/Provider/__init__.py

@@ -46,6 +46,7 @@
 from .Vercel           import Vercel
 from .WhiteRabbitNeo   import WhiteRabbitNeo
 from .You              import You
+from .Cohere           import Cohere
 
 import sys
 

g4f/models.py

@@ -20,6 +20,7 @@
     Vercel,
     Gemini,
     Koala,
+    Cohere,
     Bing,
     You,
     Pi,
@@ -275,7 +276,7 @@ def __all__() -> list[str]:
 command_r_plus = Model(
     name = 'CohereForAI/c4ai-command-r-plus',
     base_provider = 'mistral',
-    best_provider = HuggingChat
+    best_provider = RetryProvider([HuggingChat, Cohere])
 )
 
 class ModelUtils: