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Cartesia Outage History

Daily provider-status observations and published incident history for Cartesia.

Operational

Cartesia is operational. Verified . Official provider source.

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92.2% of 51 verified observed days had no reported provider issue

90-Day Trend

Sep 26Nov 15

Monthly Status Summary

Month Issue-free days Days Tracked Days with issues
October 2026 87.1% 31 4

This percentage summarizes normalized provider-status observations by calendar day. It is not duration-based, component-weighted, or contractual uptime. See the methodology and limitations.

Daily Status (Last 51 Days)

Sep 26 Today
Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

October 2026
Elevated latency for instant voice cloning
minor

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Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Voice Cloning
resolved
This incident has been resolved.
monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.
identified
Instant Voice Cloning latency is elevated, we are investigating.
Managed Agents with OpenAI LLMs may see degraded performance
minor

View incident details and source

Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Voice Agents
resolved
This incident has been resolved.
monitoring
The issue seems to be mitigated upstream: https://status.openai.com/incidents/01M5GPE9C4E19HE461P8JAMYXD and we're continuing to monitor.
investigating
We are investigating the issue and addressing with upstream provider.
Playground unavailable
major

View incident details and source

Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Playground
resolved
The Playground has been restored and is healthy. The disruption is resolved. API services were unaffected.
identified
The Playground is currently unavailable. API services are unaffected. We have identified the cause of the disruption and are actively working to remediate.
Intermittent API and Playground Errors
minor

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Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Playground Voice Agents
resolved
This incident has been resolved.
monitoring
The intermittent connectivity issues have resolved; we are continuing to monitor the state of our service.
investigating
We are investigating intermittent errors affecting some API and Playground operations, including access-token creation, voice browsing, and agent management. We are working to identify the cause and mitigate.
Degraded API Performance in US Regions
partial

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Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Speech to Text (US) Voice Cloning Text to Speech (US)
resolved
The replacement for the offending change has been deployed. The incident is resolved.
monitoring
This degradation has been quickly mitigated; we are closely monitoring performance for all key endpoints in the US regions.
investigating
Our caching service briefly experienced increased load due to the same configuration change, leading to increased latency in US regions again.
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.
investigating
Customers in the US regions are facing increased latency for some API requests.
September 2026
Intermittent issues with voice cloning in APAC
minor

View incident details and source

Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Voice Cloning
resolved
This incident has been resolved.
monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.
monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.
investigating
We are investigating the issue.
Intermittent websocket connection throttling
minor

View incident details and source

Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Text to Speech (APAC)
resolved
This incident has been resolved.
monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.
investigating
We are investigating the issue.
investigating
We are investigating the issue.
Elevated connection errors in US regions
minor

View incident details and source

Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Speech to Text (US) Text to Speech (US)
resolved
We have identified the root cause as upstream provider cluster maintenance that affected our service ingress. Some clients experienced connection errors, but subsequent retries were successful.
resolved
We have mitigated the issue and continuing the root cause investigation.
investigating
We are investigating some connection errors in US region.
August 2026
Elevated server-side TTFA for sonic-3.5 and sonic-3 in EU + US region
minor

View incident details and source

Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Text to Speech (EU) Text to Speech (US)
resolved
This incident has been resolved.
monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.
monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.
investigating
We are investigating the issue.
TTS language region validation fails requests
minor

View incident details and source

Notice published:

Provider resolved: . The notice publication date does not establish the outage start.

Text to Speech (EU) Text to Speech (APAC) Text to Speech (US)
resolved
This incident has been resolved.
monitoring
We have mitigated the issue on our end and are continuing to monitor the state of our service.
identified
The change has been rollbacked in APAC.
identified
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.
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