# Tokens and pricing

Review AI model token prices for Metronome token billing.

The table below lists all AI model token prices that Stripe tracks. When you use the [Metronome token billing integration](https://docs.metronome.com/guides/pricing-packaging/billing-model-guides/token-billing), Stripe automatically updates these prices when providers change their published rates. You can add any listed model when you create a token billing rate card in Metronome.

Prices might differ across providers for the same model.

**Publisher** identifies the organization that created and owns the model.

**Provider** identifies the service that serves the model request and sets the rate used for billing.

The publisher and provider aren’t always the same. Some models are provided directly, while others are provided through third-party services. See the [pricing table](https://docs.stripe.com/billing/token-billing/ai-prices.md#pricing-table-prices-per-1m-tokens) for the publisher and provider for each model.

## Understand token usage by type

For each inference call, providers return the number of tokens consumed. Token types exist because providers meter different parts of a request separately—such as prompt processing, generated output, or cache usage. Different model families (text, image, and multimodal) might report token usage differently, and the provider determines the token counts and corresponding rates for each type.

- **Cached input:** Prompt tokens read from a cache instead of being recomputed by the model.
- **Cached output:** Response tokens served from a cache instead of being newly generated. Some providers report this as a separate token type. Others include it within the cached input count.
- **Input:** Tokens sent to the model in the prompt.
- **Output:** Tokens generated by the model in its response.

> #### Pricing update timeline
> 
> Token prices are updated automatically to reflect the provider’s current pricing. Changes might appear with a slight delay.

## Pricing table (prices per 1M tokens)

### AI model pricing table

The interactive pricing table is available in the web view. In plaintext and markdown exports, use the filters in the web UI to view current model pricing by publisher, provider, token type, display name, and price threshold.