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429Anthropic (Claude)· Rate limits

Anthropic / Claude rate limit exceeded (429)

Number of requests has exceeded your rate limit
Quick answer

You’ve exceeded Claude’s requests-per-minute or tokens-per-minute limit for your tier. The API returns 429; back off, retry, and reduce burst load to recover.

What causes it

How to fix it

  1. Back off and retry with jitter; respect anthropic-ratelimit headers.
  2. Reduce concurrency and context size.
  3. Move up a usage tier for higher limits.
The permanent fix

Stop hitting this entirely

Standard Compute routes across frontier providers (including Claude-class models) behind one endpoint with no per-minute cap — so a single provider’s rate limit doesn’t stall your workload.

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FAQ

Does Claude have separate request and token limits?

Yes — Anthropic enforces both requests-per-minute and tokens-per-minute per tier, plus a daily token cap on some tiers. Large prompts hit the token limit first.

Related errors

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