EU endpoint session failures on Universal 3.5 Pro Realtime

Summary

EU endpoint session failures on Universal 3.5 Pro Realtime

This incident has been resolved. From 13:00–13:12 UTC, users creating new streaming sessions using the EU endpoint were receiving a 3005 close code.

• Started

  Aug 19, 2026 · 1:17 PM

• Resolved

  Aug 19, 2026 · 1:24 PM

• Duration

  7m

• Severity

  Major

• ◐

  Investigating

  Aug 19 · 1:17 PM AssemblyAI

  We're currently investigating an issue affecting users on our Universal 3.5 Pro Realtime model, where new streaming sessions could not be created on our EU endpoint. This occurred from 13:00–13:12 UTC. Affected users are seeing a 3005 close code. Users on the US endpoint are unaffected.

• ◆

  Identified

  Aug 19 · 1:17 PM AssemblyAI

  The issue has been identified and a fix is being implemented.

• ◉

  Monitoring

  Aug 19 · 1:18 PM AssemblyAI

  A fix has been implemented and our team is monitoring the results. Users can now create new realtime sessions successfully.

• ◉

  Monitoring

  Aug 19 · 1:20 PM AssemblyAI

  We are continuing to monitor for any further issues.

• ✓

  Resolved

  Aug 19 · 1:24 PM AssemblyAI

  This incident has been resolved. From 13:00–13:12 UTC, users creating new streaming sessions using the EU endpoint were receiving a 3005 close code.