integrations[patch]: remove non-required chat param defaults (#26730)

anthropic:
  - max_retries

openai:
  - n
  - temperature
  - max_retries

fireworks
  - temperature

groq
  - n
  - max_retries
  - temperature

mistral
  - max_retries
  - timeout
  - max_concurrent_requests
  - temperature
  - top_p
  - safe_mode

---------

Co-authored-by: Erick Friis <erick@langchain.dev>

libs/partners/mistralai/langchain_mistralai/chat_models.py

@@ -95,9 +95,12 @@ def _create_retry_decorator(
     """Returns a tenacity retry decorator, preconfigured to handle exceptions"""
 
     errors = [httpx.RequestError, httpx.StreamError]
-    return create_base_retry_decorator(
+    kwargs: dict = dict(
         error_types=errors, max_retries=llm.max_retries, run_manager=run_manager
     )
+    return create_base_retry_decorator(
+        **{k: v for k, v in kwargs.items() if v is not None}
+    )
 
 
 def _is_valid_mistral_tool_call_id(tool_call_id: str) -> bool:
@@ -380,13 +383,13 @@ class ChatMistralAI(BaseChatModel):
         default_factory=secret_from_env("MISTRAL_API_KEY", default=None),
     )
     endpoint: Optional[str] = Field(default=None, alias="base_url")
-    max_retries: int = 5
-    timeout: int = 120
-    max_concurrent_requests: int = 64
+    max_retries: Optional[int] = None
+    timeout: Optional[int] = None
+    max_concurrent_requests: Optional[int] = None
     model: str = Field(default="mistral-small", alias="model_name")
-    temperature: float = 0.7
+    temperature: Optional[float] = None
     max_tokens: Optional[int] = None
-    top_p: float = 1
+    top_p: Optional[float] = None
     """Decode using nucleus sampling: consider the smallest set of tokens whose
        probability sum is at least top_p. Must be in the closed interval [0.0, 1.0]."""
     random_seed: Optional[int] = None