OpenAI
Limits are measured in requests, tokens and images per minute or day, whichever you hit first, vary by model and are set per organization and project. Tiers are earned by cumulative credit purchases: Free, Build ($5 total purchases, $500 monthly limit), Launch ($100, $5,000) and Grow ($500, $200,000).
Anthropic
Limits are requests per minute and input and output tokens per minute per model class, with tiers Evaluation, Start, Build, Scale and Custom placed automatically by usage and account standing. You can request an increase in the Console. Monthly spend caps by tier are $500, $1,000 and $200,000 for Start, Build and Scale. Workspace limits can be set lower than the organization's.
What to do when a bot hits a limit
- Slow down or queue requests.
- Shorten prompts: reduce tokens.
- Request a higher tier if your use is legitimate.
- Rate-limit visitors yourself: protection checklist.
Error meanings: API errors.
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