# Cartesia: Elevated server-side TTFA for sonic-3.5 and sonic-3 in EU + US region

- Provider: [Cartesia](https://outages.cc/cartesia.md)
- Type: Incident
- State: Resolved
- Worst impact: Degraded performance
- Started: 2026-08-21 12:06 UTC
- Resolved: 2026-08-21 13:33 UTC (lasted 1 h 28 min)
- Official update: https://status.cartesia.ai

## Updates from Cartesia

### resolved, 2026-08-21 13:33 UTC

This incident has been resolved.

### monitoring, 2026-08-21 13:00 UTC

We have mitigated the issue on our end and are continuing to monitor the state of our service.

### monitoring, 2026-08-21 12:37 UTC

We have mitigated the issue on our end and are continuing to monitor the state of our service.

### investigating, 2026-08-21 12:06 UTC

We are investigating the issue.