AssemblyAI experienced a major incident on November 20, 2025 affecting Asynchronous API, lasting 1h 20m. The incident has been resolved; the full update timeline is below.
Affected components
Asynchronous API
Update timeline
- investigating Nov 20, 2025, 08:21 AM UTC
We are currently investigating an issue where there has been delayed processing of transcripts on Slam-1, specifically in our us-west-2 region. This began at 5:43 UTC. Customers will experience queueing or erroring of transcripts when using our Slam-1 model. Our Universal model is not affected by this incident.
- identified Nov 20, 2025, 08:26 AM UTC
The issue has been identified and a fix is being implemented.
- monitoring Nov 20, 2025, 08:47 AM UTC
A fix has been implemented and our team is monitoring the results. Slam-1 has resumed normal processing.
- resolved Nov 20, 2025, 09:41 AM UTC
This incident has been resolved.