Minor incident

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

Affected: Streaming API

Current status of AssemblyAI: Operational — live AssemblyAI status

Timeline

1. Oct 28, 2026, 18:11 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.
2. Oct 28, 2026, 18:21 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.
3. Oct 28, 2026, 18:53 UTC
   resolved
   We have continued to see good performance after the rollback and are now marking this issue as resolved.

Updates as published by AssemblyAI (original).