Is AssemblyAI down? › Outage history › Oct 22, 2025
AssemblyAI partial outage on Oct 22, 2025: what happened
On Oct 22, 2025, the AssemblyAI status page reported "Requests failing for Slam-1 model". About 6 hours 1 min: from Oct 22, 2025, 17:56 UTC to Oct 22, 2025, 23:58 UTC, by the official start and resolution times.
AssemblyAI right now
At our last refresh (Oct 22, 2026, 12:35 UTC) AssemblyAI was up: All Systems Operational.
- Started
- Oct 22, 2025, 17:56 UTC
- Resolved
- Oct 22, 2025, 23:58 UTC
- Duration
- 6 hours 1 min
- Official impact
- Major
- Affected
- Asynchronous API, APIs - Asynchronous API
- Source
- Requests failing for Slam-1 model on the AssemblyAI status page
The AssemblyAI status page rated the impact "Major": a partial outage. Some parts or some users were affected; it was not a complete outage.
What caused the AssemblyAI partial outage?
The AssemblyAI status page has not published a cause. When it identified the problem at 17:56 UTC on Oct 22, 2025, it said: "We are currently seeing longer-than-usual turnaround times for pre-recorded audio transcriptions that are using our Slam-1 model. Requests using the Universal model are unaffected. We are working to address this issue and will provide an update here as soon as possible."
When was it fixed?
The AssemblyAI status page marked it resolved at Oct 22, 2025, 23:58 UTC, 6 hours 1 min after it started. A fix was in place and being monitored from Oct 22, 2025, 19:37 UTC. Its resolution note: "We have continued to see good performance for requests using Slam-1 and are now marking this issue as resolved."
Timeline of official updates
Every update the AssemblyAI status page posted, oldest first. Times are UTC.
Oct 22, 2025, 17:56 UTC identified
We are currently seeing longer-than-usual turnaround times for pre-recorded audio transcriptions that are using our Slam-1 model. Requests using the Universal model are unaffected. We are working to address this issue and will provide an update here as soon as possible.
Oct 22, 2025, 18:01 UTC identified
We are now seeing increased error rates and failures for requests using the Slam-1 model so we are elevating this issue to a partial outage. Requests using Universal are working normally, so consider using that model as a short-term workaround if needed. Our team is working to resolve this issue as quickly as possible.
Oct 22, 2025, 19:03 UTC identified
We are once again starting to see requests using Slam-1 succeed, but we are still working to fully resolve the issue. We will follow up with another update once the issue has been fully mitigated.
Oct 22, 2025, 19:20 UTC identified
We are still seeing good success rates for requests using the Slam-1 model, but we are still seeing occasional slower-than-usual processing times, which we are working to address.
Oct 22, 2025, 19:37 UTC monitoring
Success rates and turnaround times for requests using Slam-1 have returned to normal ranges, but we are continuing to monitor traffic to ensure continued good performance.
Oct 22, 2025, 23:58 UTC resolved
We have continued to see good performance for requests using Slam-1 and are now marking this issue as resolved.
AssemblyAI partial outage questions
What caused the AssemblyAI partial outage on Oct 22, 2025?
The AssemblyAI status page has not published a cause. When it identified the problem (Oct 22, 2025, 17:56 UTC) it said: "We are currently seeing longer-than-usual turnaround times for pre-recorded audio transcriptions that are using our Slam-1 model. Requests using the Universal model are unaffected. We are working to address this issue and will provide an update here as soon as possible."
When was the AssemblyAI partial outage on Oct 22, 2025 fixed?
The AssemblyAI status page marked it resolved at Oct 22, 2025, 23:58 UTC, 6 hours 1 min after it started. A fix was in place and being monitored from Oct 22, 2025, 19:37 UTC. Its resolution note: "We have continued to see good performance for requests using Slam-1 and are now marking this issue as resolved."
How long did the AssemblyAI partial outage last?
About 6 hours 1 min: from Oct 22, 2025, 17:56 UTC to Oct 22, 2025, 23:58 UTC, by the official start and resolution times.
Was AssemblyAI completely down?
No. The AssemblyAI status page rated the impact "Major": a partial outage. Some parts or some users were affected; it was not a complete outage. The affected parts listed were: Asynchronous API, APIs - Asynchronous API.
Which parts of AssemblyAI were affected?
The AssemblyAI status page listed: Asynchronous API, APIs - Asynchronous API.
Other recent AssemblyAI incidents
- Increased Processing Times and Errors on EU Endpoint for Universal-3 Pro Async model Oct 6, 2026, 15:44 UTC, 19 minutes
- Increased Processing Times and Errors on US Endpoint for Universal-3.5 Pro Async model Oct 6, 2026, 14:00 UTC, 25 minutes
- Rejected Sessions on US Endpoint for Universal-3.6 Pro Realtime Model Oct 6, 2026, 10:30 UTC, duration not stated
- Increased processing times and errors for Universal-3.5 Pro on the EU async endpoint Oct 5, 2026, 10:21 UTC, 1 hour 18 min
- Increased turnaround times for Async Universal-3 model Sep 28, 2026, 17:27 UTC, 31 minutes
- Outage on US Async Endpoint Sep 16, 2026, 20:22 UTC, 1 hour 15 min
Full AssemblyAI outage history and biggest outages → · Recent outages across all services →
Quotes are the AssemblyAI status page's own words, from the official incident. Is It Up or Down is independent and not affiliated with AssemblyAI. Times are UTC.