Speech-to-text REST API v3.0 will be retired by 31 March 2026.

Speech-to-text REST API v3.0 will be retired by 31 March 2026. Update your code that uses Speech-to-text REST API.

We recently updated the Speech-to-text REST API to version 3.1. Version 3.1 builds on the capabilities of the previous version and adds new features including language identification and multi-speaker diarization. With these enhancements, we'll retire version 3.0 of the API on 31 March 2026.

Required action

If you are currently using Azure Speech-to-text REST API version 3.0, to avoid service interruptions, update your code that uses the Speech-to-text Rest API version 3.0 to version 3.1 by 31 March 2026.

Help and support

If you have questions, get answers from tech community experts from Microsoft Q&A. If you have a support plan and you need technical help, please create a support request.

1. Under Issue type, select Technical.
2. Under Subscription, select your subscription.
3. Under Service, click My services, then select Cognitive Services.
4. Under Summary, type a description of your issue.
5. Under Problem type, select Speech to Text.
6. Under Problem subtype, select Custom Speech.