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

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-08-21 12:06 UTC · Resolved: 2026-08-21 13:33 UTC · Duration: 1.5 h
- Updates: 4 · Affected components: Text to Speech (EU), Text to Speech (US)
- [Vendor status page: https://status.cartesia.ai/incidents/01M0J3DGMSQ589C0C35YSWT5EJ](https://status.cartesia.ai/incidents/01M0J3DGMSQ589C0C35YSWT5EJ)
- [Company: Cartesia](https://rewindex.com/company/cartesia.md)

## Timeline of updates

- **investigating** 2026-08-21 12:06 UTC: We are investigating the issue.
- **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.
- **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.
- **resolved** 2026-08-21 13:33 UTC: This incident has been resolved.


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Canonical: https://rewindex.com/company/cartesia/incidents/01M0J3DGMSQ589C0C35YSWT5EJ · Markdown: https://rewindex.com/company/cartesia/incidents/01M0J3DGMSQ589C0C35YSWT5EJ.md · JSON: https://rewindex.com/api/v1/companies/cartesia/incidents/01M0J3DGMSQ589C0C35YSWT5EJ · Generated 2026-10-20T00:19:09.595Z