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Sweep 28 Aug 2026 ยท 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

rate-limits

api/rate-limits

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Nearest release: v2.1.237, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

api/rate-limits Changed · +4 / -0 lines

### Files API

from line 193
 | Create endpoints (for example, agents, sessions, and environments) | 300 requests per minute   |
 | Read endpoints (for example, retrieve, list, and stream)           | 1,200 requests per minute |
 
+### Files API
+
+[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.
+
 ### Fast mode rate limits
 
 When 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).