# Cartesia: TTS language region validation fails requests

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2026-08-14 07:58 UTC · Resolved: 2026-08-14 09:34 UTC · Duration: 1.6 h
- Updates: 4 · Affected components: Text to Speech (EU), Text to Speech (APAC), Text to Speech (US)
- [Vendor status page: https://status.cartesia.ai/incidents/01KZZMF21NQ17QKCBQQ2V7CDTF](https://status.cartesia.ai/incidents/01KZZMF21NQ17QKCBQQ2V7CDTF)
- [Company: Cartesia](https://rewindex.com/company/cartesia.md)

## Timeline of updates

- **identified** 2026-08-14 07:58 UTC: A change rejects unknown TTS language regions, e.g. hi-in is rejected since an ISO 3166-1 alpha-2 country code is expected. We are working on rolling back this change. To correct the issue immediately, avoid sending the country code or send a corrected country code such as hi-IN.
- **identified** 2026-08-14 08:07 UTC: The change has been rollbacked in APAC.
- **monitoring** 2026-08-14 09:31 UTC: We have mitigated the issue on our end and are continuing to monitor the state of our service.
- **resolved** 2026-08-14 09:34 UTC: This incident has been resolved.


---
Canonical: https://rewindex.com/company/cartesia/incidents/01KZZMF21NQ17QKCBQQ2V7CDTF · Markdown: https://rewindex.com/company/cartesia/incidents/01KZZMF21NQ17QKCBQQ2V7CDTF.md · JSON: https://rewindex.com/api/v1/companies/cartesia/incidents/01KZZMF21NQ17QKCBQQ2V7CDTF · Generated 2026-10-20T00:19:30.213Z