# Cartesia: Degraded API Performance in US Regions

- Impact (vendor’s label): major
- Status: resolved
- Started: 2026-10-07 16:29 UTC · Resolved: 2026-10-07 22:23 UTC · Duration: 5.9 h
- Updates: 5 · Affected components: Speech to Text (US), Speech to Text (US), Voice Cloning, Voice Cloning, Text to Speech (US), Text to Speech (US)
- [Vendor status page: https://status.cartesia.ai/incidents/01M4CAGW6BB52AVXQXAK4Q7ECF](https://status.cartesia.ai/incidents/01M4CAGW6BB52AVXQXAK4Q7ECF)
- [Company: Cartesia](https://rewindex.com/company/cartesia.md)

## Timeline of updates

- **investigating** 2026-10-07 16:29 UTC: Customers in the US regions are facing increased latency for some API requests.
- **monitoring** 2026-10-07 16:50 UTC: The root cause has been identified as a change that led to increased load in our internal caching service. We have mitigated the issue on our end and are continuing to monitor the state of our service.
- **investigating** 2026-10-07 21:13 UTC: Our caching service briefly experienced increased load due to the same configuration change, leading to increased latency in US regions again.
- **monitoring** 2026-10-07 21:16 UTC: This degradation has been quickly mitigated; we are closely monitoring performance for all key endpoints in the US regions.
- **resolved** 2026-10-07 22:23 UTC: The replacement for the offending change has been deployed. The incident is resolved.

## Rewindex changes for this incident

- 2026-10-07 16:29 UTC: [Major incident: Degraded API Performance in US Regions](https://rewindex.com/change/ia636dbef49d55f.md)


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Canonical: https://rewindex.com/company/cartesia/incidents/01M4CAGW6BB52AVXQXAK4Q7ECF · Markdown: https://rewindex.com/company/cartesia/incidents/01M4CAGW6BB52AVXQXAK4Q7ECF.md · JSON: https://rewindex.com/api/v1/companies/cartesia/incidents/01M4CAGW6BB52AVXQXAK4Q7ECF · Generated 2026-10-19T23:38:02.984Z