Claude API Rate Limits: Tiers, 429 Errors and Getting Higher Limits

1 day ago

2 min read

⚡ TL;DR Limits cap requests, input tokens and output tokens per minute; exceeding one returns 429. Tiers rise automatically; request more in the Console once you use half your limit.

Hitting 429 errors at launch is painful. Understanding Claude API rate limits helps you plan.

Developer guide. 🚦

🚦 How Claude API Rate Limits Work

Usage is capped by requests per minute, input tokens per minute and output tokens per minute. Exceeding any one returns a 429 error.

🪜 Tiers

Standard tiers are Start, Build and Scale. New organizations may start in Evaluation, and account-managed customers use a Custom tier. Check yours at platform.claude.com.

📈 Getting Higher Limits

Options:

⏳ Wait for automatic tier upgrades; deposits alone don't raise tiers
📝 Request an increase in the Console once you use at least half your limit
🤝 Contact sales for custom limits or dedicated capacity

🛠️ Handling 429s

Retry with exponential backoff and spread traffic over time.

💡 Pro tip Cache repeated prompts and batch non-urgent work to stay under token limits.

Planning around Claude API rate limits keeps apps reliable. Need a scalable Claude integration? Lord Of The Wix can build it. ✨

❓ Claude API rate limits FAQ

What do Claude API rate limits measure?

Requests, input tokens and output tokens per minute.

What error appears when I exceed a limit?

A 429 error.

What are the standard tiers?

Start, Build and Scale.

Does depositing money raise my tier?

No. Tiers are assigned automatically.

When can I request higher limits?

After using at least half your current limit.

🙏 Credit: This article is based on public information from the Claude Help Center. Claude is a product of Anthropic. Source: support.claude.com.

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