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Prices are on the model catalog and GET /v1/models/{model_id}.
  • usage.cost: that call’s charge in USD, to six decimals. 0.0 is a charge of zero.
  • Included in: chat, including streamed chat, embeddings, and transcription.
  • Transcription: uses input_audio_seconds.

Billing variations

USD per 1 million tokens, unless that model’s catalog page says otherwise. method and response_format do not change the price.
Most models bill per token. For example, google/gemma-4-26b-a4b-it bills $0.10 / 1M input tokens and $0.30 / 1M output tokens.

Billing transparency

Rates are published, not quoted. You can read what a model costs before you call it, then check what a call cost after. The unit in pricing follows how the model bills: tokens, images, or audio seconds.
For the example below, google/gemma-4-26b-a4b-it is priced in USD per 1 million tokens.

Model catalog

Current rates for every model.

Get Model

Full response schema, including pricing.