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Outage in Cartesia

TTS API Elevated TTFA

Resolved Major
February 23, 2026 - Started about 1 month ago - Lasted about 2 hours
Official incident page

Incident Report

Investigating: We are currently investigating elevated Time to First Audio (TTFA) for api.cartesia.ai in the APAC and US region. Customers may be experiencing longer-than-expected delays before audio begins streaming, and in some cases inter chunk latency. We are actively working to identify the root cause and will provide updates as we learn more.
Components affected
Cartesia Text to Speech (US) Cartesia Text to Speech (APAC)

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Latest Updates ( sorted recent to last )
RESOLVED about 1 month ago - at 02/23/2026 03:42PM

After monitoring, this incident appears to be fully resolved and TTFAs should be at normal levels.

IDENTIFIED about 1 month ago - at 02/23/2026 02:54PM

We have identified the component causing and are in the process of rolling a mitigation for it.

INVESTIGATING about 1 month ago - at 02/23/2026 02:00PM

Investigating: We are currently investigating elevated Time to First Audio (TTFA) for api.cartesia.ai in the APAC and US region. Customers may be experiencing longer-than-expected delays before audio begins streaming, and in some cases inter chunk latency. We are actively working to identify the root cause and will provide updates as we learn more.

Latest Cartesia outages

Voice Agents — Degraded Performance - 13 days ago
Authentication Services Degraded on play.cartesia.ai - 16 days ago
TTS API Elevated TTFA - 22 days ago
Degraded generation quality on public voices - 30 days ago
sonic-3-latest TTS generations using pronunciation dictionaries produce incorrect results - about 1 month ago

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