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# PromptTokensDetails - Python SDK

The Python SDK and docs are currently in beta.
Report issues on [GitHub](https://github.com/OpenRouterTeam/python-sdk/issues).

Detailed prompt token usage

## Fields

| Field                | Type             | Required             | Description                                                                                      |
| -------------------- | ---------------- | -------------------- | ------------------------------------------------------------------------------------------------ |
| `audio_tokens`       | *Optional\[int]* | :heavy\_minus\_sign: | Audio input tokens                                                                               |
| `cache_write_tokens` | *Optional\[int]* | :heavy\_minus\_sign: | Tokens written to cache. Only returned for models with explicit caching and cache write pricing. |
| `cached_tokens`      | *Optional\[int]* | :heavy\_minus\_sign: | Cached prompt tokens                                                                             |
| `video_tokens`       | *Optional\[int]* | :heavy\_minus\_sign: | Video input tokens                                                                               |