OpenAIChatCompletionsResult

Inherits

• OpenAIResult

Computed properties

Property	Type	Description
choices	Collection	Returns a collection of OpenAIChoice from the OpenAI response.
choice	OpenAIChoice	Returns the first OpenAIChoice from the choices collection.
usage	Object	Returns token usage information (inherited from OpenAIResult).

usage

The usage property returns an object containing token usage information for chat completions.

Field	Type	Description
prompt_tokens	Integer	Number of tokens in the prompt.
completion_tokens	Integer	Number of tokens in the completion.
total_tokens	Integer	Total tokens used (prompt + completion).
prompt_tokens_details	Object	Breakdown of prompt tokens (optional).
completion_tokens_details	Object	Breakdown of completion tokens (optional).

prompt_tokens_details

Field	Type	Description
cached_tokens	Integer	Number of tokens served from cache.
audio_tokens	Integer	Number of audio tokens (if applicable).

completion_tokens_details

Field	Type	Description
reasoning_tokens	Integer	Tokens used for reasoning (e.g., o1 models).
audio_tokens	Integer	Number of audio tokens (if applicable).
accepted_prediction_tokens	Integer	Tokens from accepted predictions.
rejected_prediction_tokens	Integer	Tokens from rejected predictions.

Example response:

{
  "prompt_tokens": 19,
  "completion_tokens": 10,
  "total_tokens": 29,
  "prompt_tokens_details": {
    "cached_tokens": 0,
    "audio_tokens": 0
  },
  "completion_tokens_details": {
    "reasoning_tokens": 0,
    "audio_tokens": 0,
    "accepted_prediction_tokens": 0,
    "rejected_prediction_tokens": 0
  }
}

Note: The *_tokens_details objects may not be present in all responses or from all providers.

See also

• OpenAIChatCompletionsAPI