What happened
An issue related to our speaker diarization service caused certain requests to hang until they timed out. This lead to a backlog of requests to our async API creating a processing queue across our US transcription pipeline, which slowed and timed out transcription requests more broadly, including requests that were not using speaker diarization.
When
Impact ran from approximately 15:00 to 16:25 UTC on June 25, 2026 (about 1 hour 25 minutes). The most severe disruption was in the first 45 minutes (15:00–15:45 UTC); remaining delays and timeouts cleared shortly after. Full recovery was confirmed by ≈16:40 UTC.
What services were affected
On our US async API endpoint transcription requests during this window saw processing delays and timeouts.
Our EU async API endpoint was not affected and operated normally throughout.