Cartesia incident

sonic-3-latest TTS generations using pronunciation dictionaries produce incorrect results

Resolved after 23 minutes, affecting Text to Speech (US) and Text to Speech (EU) and 1 more, on February 19, 2026.

investigating Feb 19, 2026, 06:45 PM UTC

We have rolled back the bad deploy and pronunciation dictionaries are once again working with `sonic-3-latest`.

Started
Feb 19, 2026, 06:21 PM UTC
Resolved
Feb 19, 2026, 06:45 PM UTC
Duration
23m
Detected by Pingoru
Feb 19, 2026, 06:21 PM UTC

Affected components

Text to Speech (US)Text to Speech (EU)Text to Speech (APAC)

Update timeline

  1. investigating Feb 19, 2026, 06:21 PM UTC

    TTS generations using pronunciation dictionaries produce incorrect audio (some structured metadata is read out in the speech). Workaround for affected customers: use `sonic-3` instead of `sonic-3-latest`.

  2. investigating Feb 19, 2026, 06:45 PM UTC

    We have rolled back the bad deploy and pronunciation dictionaries are once again working with `sonic-3-latest`.

  3. resolved Feb 19, 2026, 06:45 PM UTC

    This incident has been resolved.

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