Soniox
REST API

Limits & quotas

Learn about Soniox Text-to-Speech REST API limits and quotas.

REST API limits

Soniox applies limits to Text-to-Speech REST API requests to ensure stability and fair use. Ensure your application handles these constraints and recovers gracefully when a limit is reached.

LimitValueNotes
Requests per minute100Exceeding this may result in rate limiting
Concurrent requests3Maximum number of simultaneous active HTTP requests
Audio duration2 minutesGenerated audio duration is capped at 2 minutes. This limit is fixed and cannot be increased.

You can request higher limits in the Soniox Console.

On this page