Async Transcription Service Issues
This incident has been resolved. Between approximately 13:40 and 14:40 UTC, asynchronous transcription requests on our US endpoint experienced elevated latency and errors. Processing times and error rates have returned to normal ranges and the backlog has cleared.
The latest update from AssemblyAI.
State
Resolved
Started
73 d ago
2026-08-20 14:21 UTC
Lasted
49 min
until 2026-08-20 15:10 UTC
Worst impact
Degraded
Timeline
4 updatesInvestigating
4 min 8%
Identified
15 min 30%
Monitoring
30 min 62%
Updates
Times in UTCAs posted by AssemblyAI
This incident has been resolved. Between approximately 13:40 and 14:40 UTC, asynchronous transcription requests on our US endpoint experienced elevated latency and errors. Processing times and error rates have returned to normal ranges and the backlog has cleared.
A fix has been implemented and we are monitoring recovery.
We have identified the cause of the elevated error rates affecting asynchronous transcription requests. Our engineering team is actively restoring capacity, and error rates should improve as this completes. We will continue to provide updates as more information becomes available.
We’re seeing elevated latency and errors on async transcription submissions, and our on-call team is actively investigating. Capacity is scaling out now, and we’re monitoring recovery.
Affected components
2AssemblyAI in the last 90 days
Full historyIncidents in 90 days
13
Days with an incident
10
Median duration
31 min
This incident
1.6× the median
Other AssemblyAI incidents
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We have continued to see good performance after the rollback and are now marking this issue as resolved.
AssemblyAI·Increased Processing Times and Errors on EU Endpoint for Universal-3 Pro Async model
This incident has been resolved. Between approximately 15:05 and 15:45 UTC, async transcription requests using Universal-3 Pro on our EU endpoint took longer than usual to complete, and some requests failed. Processing times have returned to normal ranges and any requests that failed during this window can be safely resubmitted.
AssemblyAI·Increased Processing Times and Errors on US Endpoint for Universal-3.5 Pro Async model
This incident has been resolved. Between approximately 1:35p and 2:20p UTC, async transcription requests using Universal-3.5 Pro on our US endpoint took longer than usual to complete, and some requests failed. Processing times have returned to normal ranges and any requests that failed during this window can be safely resubmitted.
AssemblyAI·Rejected Sessions on US Endpoint for Universal-3.6 Pro Realtime Model
From 10:30a - 12:30a UTC users experienced rejected connections when connecting to our Realtime Universal-3.6 Pro model on our US endpoint. Users received a 3005 Session Cancelled error message on connection. This issue has been resolved and the Realtime US endpoint for Universal-3.6 Pro is functioning normally. The EU Realtime endpoint was not affected.
AssemblyAI·Increased processing times and errors for Universal-3.5 Pro on the EU async endpoint
This incident has been resolved. Between approximately 08:20 and 10:45 UTC, asynchronous transcription requests using Universal-3 Pro and Universal-3.5 Pro on our EU endpoint took longer than usual to complete, and some requests failed. Processing times have returned to normal ranges. Any requests that failed during this window can be safely resubmitted.
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