Cartesia incident
TTS Degraded Performance - sonic-3.5 in the US
Cartesia experienced a major incident on May 26, 2026, lasting —. The incident has been resolved; the full update timeline is below.
Update timeline
- resolved May 26, 2026, 03:32 PM UTC
Our TTS endpoints for sonic-3.5 experienced degraded performance and queuing between UTC 15:01 and UTC 15:32. We've mitigated the issue and are monitoring the situation.