Real-time STT: 502 errors related to change to temporary tokens

Incident Report for AssemblyAI

Resolved

We have continued to see good performance after the rollback and are now marking this issue as resolved.

Posted Oct 28, 2026 - 18:53 UTC

Monitoring

We have completed the rollback and are now seeing a reduction of 502 errors. We will continue to monitor traffic to ensure that error rates continue to return to the normal range.

Posted Oct 28, 2026 - 18:21 UTC

Identified

We have identified an issue with a recent change to temporary tokens that is causing some Real-time STT sessions that use temp tokens to fail with a 502 error. Our team is actively working to roll back this change.

Posted Oct 28, 2026 - 18:11 UTC

This incident affected: APIs (Streaming API).