[BUG: Parse error: FormatException：Unterminated string (at character 174).

### Python -VV ```shell Parse error: FormatException：Unterminated string (at character 174). ...del": "mistral-large-latest", "choices": [ "index": 0"delta": { "role": "assistant" } } ], "data": { "id": "alf51ba2df4545862217c008456f5f", "object": "chat.completion.chunk", "created": 1745502014, "model": "mistral-large-latest" } } ``` ### Pip Freeze ```shell I'm using OpenRouter's integration function to call Mistral ai API. ``` ### Reproduction Steps Here is the url: https://api.mistral.ai/v1/chat/completions ### Expected Behavior return the answer. ### Additional Context _No response_ ### Suggested Solutions _No response_