Increased processing times and errors for Universal-3.5 Pro on the EU async endpoint

What to do

• Check whether you use AssemblyAI Asynchronous API in eu, us. Check your stack

  Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack to see every provider you depend on.

• Confirm your retries, queues and scheduled jobs caught up after the 1h 18m it lasted.

  Anything that failed between 2026-10-05 10:21 UTC and 2026-10-05 11:39 UTC may need a replay.

• Subscribe to AssemblyAI's feed to hear about the next one first. RSS feed

  https://down.guide/feed?provider=assemblyai works in Slack (/feed subscribe), Discord feed bots and any RSS reader.

Updates from AssemblyAI 4

1. investigatingOct 5, 2026, 10:21 AM UTC

   We have identified an issue affecting asynchronous transcription requests using Universal-3.5 Pro on our EU endpoint. Most of these requests are currently significantly delayed, and some have failed. Our team is working to restore normal processing. Our US endpoint and real-time services are not affected. We will continue to provide updates as more information becomes available.

   provider

2. identifiedOct 5, 2026, 10:38 AM UTC

   We have identified the issue causing longer-than-usual processing times and some failed requests for asynchronous transcription using our Universal-3 Pro and Universal-3.5 Pro models on the EU endpoint. We are working to resolve this as quickly as possible and will provide further updates as soon as we can.

   provider

3. monitoringOct 5, 2026, 10:43 AM UTC

   We have continued to work to resolve this issue and are now seeing processing times return to the normal ranges, but we are continuing to monitor to ensure good performance.

   provider

4. resolvedOct 5, 2026, 11:39 AM UTC

   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.

   provider

Corrections

None so far.

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