We've traced the issue to a bug in a change to our API key issuing logic that caused new keys to not be persisted correctly. The change is being reverted.Existing production traffic is not affected.We are exploring remediation options for API keys that were issued during the incident.
Public proof receipt / delayed sample
Cartesia P1 · RELIABILITY
A service reliability change was reported.
See the relevant before and after, when the change was found, and the official page behind it.
Newly created API keys issued during this this period are invalid. Please create new API keys.
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Read the evidence in plain language.
The before-and-after text above shows what was present on the official page at each capture. This summary explains the reviewed change.
A service reliability change was reported.
The incident status changed from an active investigation into API key persistence bugs to a confirmed state where newly created keys issued during the period are invalid.
- Before captured
- Sep 23, 2026, 1:28 PM PDT
- After captured
- Sep 24, 2026, 4:38 AM PDT
- Reviewed
- Sep 26, 2026, 3:07 PM PDT
WHY IT MAY MATTER
A material reliability change can affect buyer confidence, renewal risk, and competitive displacement opportunities.
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