# Degraded API Performance in US Regions

- Provider: [Cartesia](https://down.guide/cartesia)
- Level: confirmed
- Impact: Partial outage
- lasted 0m
- started 2026-10-07 23:17 UTC
- us
- id: DWN-bb4505755b
- Official page: https://status.cartesia.ai/incidents/01M4CAGW6BB52AVXQXAK4Q7ECF

## Root cause
> The root cause has been identified as a change that led to increased load in our internal caching service.

[Postmortem](https://status.cartesia.ai/incidents/01M4CAGW6BB52AVXQXAK4Q7ECF)

## Updates from Cartesia
### 2026-10-07 16:29 UTC: investigating
Customers in the US regions are facing increased latency for some API requests.

### 2026-10-07 16:50 UTC: monitoring
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.

### 2026-10-07 21:13 UTC: investigating
Our caching service briefly experienced increased load due to the same configuration change, leading to increased latency in US regions again.

### 2026-10-07 21:16 UTC: monitoring
This degradation has been quickly mitigated; we are closely monitoring performance for all key endpoints in the US regions.

### 2026-10-07 22:23 UTC: resolved
The replacement for the offending change has been deployed. The incident is resolved.

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