fix(openai): make store opt-in so it stops leaking to non-OpenAI backends (#4757)

mem0/configs/llms/openai.py

@@ -29,7 +29,7 @@ class OpenAIConfig(BaseLlmConfig):
         openrouter_base_url: Optional[str] = None,
         site_url: Optional[str] = None,
         app_name: Optional[str] = None,
-        store: bool = False,
+        store: Optional[bool] = None,
         # Response monitoring callback
         response_callback: Optional[Callable[[Any, dict, dict], None]] = None,
     ):
@@ -53,6 +53,11 @@ class OpenAIConfig(BaseLlmConfig):
             openrouter_base_url: OpenRouter base URL, defaults to None
             site_url: Site URL for OpenRouter, defaults to None
             app_name: Application name for OpenRouter, defaults to None
+            store: Whether to store the conversation on OpenAI's server. Opt-in;
+                defaults to None (not sent). Set to True or False only if you
+                want the value forwarded to the OpenAI API. Leaving it None
+                avoids leaking the field into OpenAI-compatible backends that
+                reject unknown fields (Gemini, Groq, vLLM, etc.).
             response_callback: Optional callback for monitoring LLM responses.
         """
         # Initialize base parameters

mem0/llms/openai.py

@@ -126,11 +126,12 @@ class OpenAILLM(LLMBase):
             params.update(**openrouter_params)
         
         else:
-            openai_specific_generation_params = ["store"]
-            for param in openai_specific_generation_params:
-                if hasattr(self.config, param):
-                    params[param] = getattr(self.config, param)
-            
+            # Only send OpenAI-specific parameters when the user has explicitly
+            # configured them. OpenAI-compatible backends (Gemini, Groq, vLLM, etc.)
+            # reject unknown fields, so `store` must be opt-in, not opt-out.
+            if self.config.store is not None:
+                params["store"] = self.config.store
+
         if response_format:
             params["response_format"] = response_format
         if tools:  # TODO: Remove tools if no issues found with new memory addition logic