# Rate limits

Requests and tokens per minute, how a 429 tells you when to retry, and how to get more.

## Rate limits

Limits apply per account (shared by all its API keys) and per model (a model's pinned versions share its budget; fast mode counts as its own model). A request that would cross a budget is refused with
`429` and a `Retry-After` header; retry after that many seconds.

| Budget | Per minute |
| --- | --- |
| Requests | 100 |
| Tokens (prompt, cached prompt and completion combined) | 10,000,000 |

Need more? Email [hello@openscale.so](mailto:hello@openscale.so) with your account email and
expected volume, and we will raise your limits.

## More of the API reference

- [API reference](https://openscale.so/docs): base URLs, authentication and a first request.
- [Chat Completions](https://openscale.so/docs/chat-completions): POST /v1/chat/completions: the OpenAI Chat Completions format, streamed or not, with reasoning and tools.
- [Responses](https://openscale.so/docs/responses): POST /v1/responses: the OpenAI Responses format with stored state, background runs and enforced tool rules.
- [Conversations](https://openscale.so/docs/conversations): Keep the turns of a Responses conversation on our side and continue it by id.
- [Prompts](https://openscale.so/docs/prompts): Save instructions, messages and settings once, then use them by id in the Responses API.
- [Anthropic Messages](https://openscale.so/docs/messages): POST /anthropic/v1/messages: the Anthropic Messages format, for Claude Code and Anthropic SDKs.
- [Models and pricing](https://openscale.so/docs/models): Model ids, prices per 1M tokens, context windows, output limits, versions and the live catalog endpoint.
- [Batch](https://openscale.so/docs/batch): Upload a JSONL file of chat completions, create a batch and collect the results when it finishes.
- [Errors](https://openscale.so/docs/errors): The error shape, every status code and code, and which ones to retry.
- [Data retention](https://openscale.so/docs/data-retention): What is stored, for how long, how to delete it, and zero data retention.
- [Interactive reference](https://openscale.so/docs/reference): try every endpoint in the browser.
- [OpenAPI document](https://openscale.so/openapi.json): the whole API as OpenAPI 3.1.