rate-limits changedapi/rate-limits
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### Files API
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193193| Create endpoints (for example, agents, sessions, and environments) | 300 requests per minute |
194194| Read endpoints (for example, retrieve, list, and stream) | 1,200 requests per minute |
195195
196### Files API
197
198[Files API](https://platform.claude.com/docs/en/build-with-claude/files) requests have their own per-organization limit, shared across upload, list, retrieve, download, and delete operations and separate from the Messages API limits described earlier on this page. See [Files API rate limits](https://platform.claude.com/docs/en/build-with-claude/files#rate-limits) for the current value.
199
196200### Fast mode rate limits
197201
198202When using [fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode) (research preview) with `speed: "fast"` on Claude Opus 5 or Opus 4.8, dedicated rate limits apply that are separate from standard Opus rate limits. When fast mode rate limits are exceeded, the API returns a `429` error with a `retry-after` header. Fast mode is not available on Claude Opus 4.7 (requests return an error) or Claude Opus 4.6 (requests to `claude-opus-4-6` with `speed: "fast"` run at standard speed). See [Fast mode](https://platform.claude.com/docs/en/build-with-claude/fast-mode#supported-models).
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