Is Cartesia down? › Outage history

Cartesia outage history

Cartesia published 26 incidents on its official status page since Jul 10, 2026, 2 of them rated at the highest impact level. 1 was a major or long incident with its own page; the biggest are listed first. Below them is every smaller incident, then our own 90 day check history.

Is Cartesia down right now? →Cartesia official status page

Biggest Cartesia outages

Ranked by the official impact level, then by how long they lasted. Each has its own page with the cause, the fix time and every official update.

  1. Jul 30, 2026: Autoscaling performance investigation 6 hours 27 min · rated "Major"

Every smaller Cartesia incident

Minor and short incidents from the Cartesia status page, newest first, each with a line from the official updates. Times are UTC.

October 2026

  • Oct 22, 2026, 03:13 UTC · Managed Agents with OpenAI LLMs may see degraded performance

    10 minutes · rated "Minor"

    "We are investigating the issue and addressing with upstream provider."

  • Oct 15, 2026, 22:37 UTC · Playground unavailable

    4 minutes · rated "Critical"

    "The Playground has been restored and is healthy. The disruption is resolved. API services were unaffected."

  • Oct 8, 2026, 22:55 UTC · Intermittent API and Playground Errors

    14 minutes · rated "Minor"

    "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."

  • Oct 7, 2026, 23:17 UTC · Degraded API Performance in US Regions

    duration not stated · rated "Major"

    "The replacement for the offending change has been deployed. The incident is resolved."

September 2026

  • Sep 23, 2026, 20:16 UTC · API key issuing degraded

    50 minutes · marked as no impact

    "Newly created API keys issued during this this period are invalid. Please create new API keys."

  • Sep 3, 2026, 22:34 UTC · Intermittent issues with voice cloning in APAC

    21 hours 4 min · rated "Minor"

    "We have mitigated the issue on our end and are continuing to monitor the state of our service."

  • Sep 3, 2026, 09:08 UTC · Intermittent websocket connection throttling

    3 hours 49 min · rated "Minor"

    "We have mitigated the issue on our end and are continuing to monitor the state of our service."

  • Sep 1, 2026, 20:00 UTC · Elevated connection errors in US regions

    3 minutes · rated "Minor"

    "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."

August 2026

July 2026

  • Jul 29, 2026, 22:17 UTC · Partial TTS Outage in the US

    22 minutes · rated "Major"

    "We are investigating an outage with our underlying infrastructure provider that impacted TTS traffic in the US."

  • Jul 22, 2026, 23:43 UTC · Agent deployments via CLI are failing

    1 hour 2 min · rated "Major"

    "Issue initiating new agent deployments via the CLI has been identified and a fix is being implemented. Calls are not impacted."

  • Jul 21, 2026, 16:03 UTC · Users are unable to login to the playground

    1 hour 25 min · rated "Major"

    "We have mitigated the issue on our end and are continuing to monitor the state of our service."

  • Jul 20, 2026, 17:51 UTC · Sonic Latest Unavailable in EU region

    18 minutes · rated "Minor"

    "We have mitigated the issue on our end and are continuing to monitor the state of our service."

  • Jul 17, 2026, 20:13 UTC · Database read timeouts

    23 minutes · rated "Critical"

    "We are investigating the issue and what components are affected."

  • Jul 10, 2026, 17:15 UTC · This is an example incident

    duration not stated · marked as no impact

    "Empathize with those affected and let them know everything is operating as normal."

  • Jul 10, 2026, 17:15 UTC · Voice Cloning Issues

    duration not stated · marked as no impact

    "Confirmed the deployed fix works as intended. Reported user issues have been resolved."

  • Jul 10, 2026, 17:15 UTC · API Server Down

    duration not stated · marked as no impact

    "Cartesia server was down for ~8-10 minutes"

  • Jul 10, 2026, 17:15 UTC · Playground Down

    duration not stated · rated "Major"

    "Incident's been resolved."

Cartesia uptime, last 90 days

Tracked since Oct 7, 2026. Updated Oct 22, 2026, 12:35 UTC.

Uptime100%
Avg response240 ms
Problems, 30 days2
Last problemOct 22, 2026
90 days agoUp Degraded Down No dataToday

Every Cartesia problem in the last 90 days

  • Degraded

    Partial System Degradation

    Oct 22, 2026, 03:15 UTC · lasted 16 minutes · from Cartesia's official status page

  • Outage

    Major System Outage

    Oct 15, 2026, 22:38 UTC · lasted 13 minutes · from Cartesia's official status page

Day by day

Day (UTC)UptimeAvg responseWorst
Oct 22, 2026100%172 msDegraded
Oct 21, 2026100%210 msUp
Oct 20, 2026100%246 msUp
Oct 19, 2026100%254 msUp
Oct 18, 2026100%262 msUp
Oct 17, 2026100%266 msUp
Oct 16, 2026100%276 msUp
Oct 15, 2026100%397 msUp
Oct 14, 2026100%429 msUp
Oct 13, 2026100%390 msUp
Oct 12, 2026100%335 msUp
Oct 11, 2026100%217 msUp
Oct 10, 2026100%59 msUp
Oct 9, 2026100%72 msUp
Oct 8, 2026100%97 msUp
Oct 7, 2026100%162 msUp

Cartesia outage questions

Was Cartesia down today?

Yes. Cartesia had a problem today (Oct 22, 2026, UTC): Partial System Degradation (degraded, 16 minutes).

Was Cartesia down yesterday?

No. We recorded no Cartesia outage, degraded period or maintenance yesterday (Oct 21, 2026, UTC).

When was Cartesia last down?

The latest problem was on Oct 22, 2026, 03:15 UTC and lasted 16 minutes: Partial System Degradation.

What was the biggest Cartesia outage?

Of the incidents on record since Jul 10, 2026, the biggest was on Jul 30, 2026: Autoscaling performance investigation. The Cartesia status page rated it "Major" and it lasted 6 hours 27 min.

How often does Cartesia go down?

Cartesia's status page posted 26 incidents since Jul 10, 2026, 5 of them in the last 30 days. Most incidents affect part of the service, not all of it. Uptime from our own checks over the last 90 days: 100%.

Times are UTC. Official incidents are the company's own posts, quoted from the Cartesia status page. Problem periods start when the official status page or our checks first show a problem and end when the service is next found working, so durations are accurate to within a few minutes. Recent outages across all services.