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We enforce rate limits to ensure fair usage and stable performance for all users. Rate limits vary by subscription plan and are applied per account, shared across all API keys.

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Rate limits by product

Rate limits and concurrency limits depend on your subscription plan. Please see the Pricing Page for detailed limits by tier:
  • TTS limits — Concurrent generations, WebSocket connections, voice design and cloning limits
  • STT limits — Streaming concurrency
  • Realtime API limits — Concurrent sessions
  • LLM Router limits — Requests per second and per day
If you need a higher limit than provided on the available plans, please reach out to our team.
Rate limits apply per account and are shared across your API keys.