| Parameter | Type | Description |
|---|---|---|
| id | string | Unique identifier for the chat completion |
| choices | array | List of chat completion choices. If n is greater than 1, there can be multiple choices |
| created | integer | Unix timestamp (in seconds) when the chat completion was created |
| model | string | Model used for the chat completion |
| system_fingerprint | string | Fingerprint representing the backend configuration where the model is running |
| object | string | Object type, always chat.completion |
| usage | object | Usage statistics for the completion request |
| completion_tokens | integer | Number of tokens in the generated completion |
| prompt_tokens | integer | Number of tokens in the prompt |
| total_tokens | integer | Total number of tokens used in the request (prompt + completion) |