Kato Status - Incident history https://status.katohq.com Kato Fri, 22 May 2026 21:00:01 +0000 Outbound networking issues affecting STT, TTS streaming and batch service Type: Incident Affected Components: Deepgram May 22, 21:00:01 GMT+0 - Resolved - Some API requests may have experienced elevated error rates for approximately 2-3 minutes starting at 16:43 UTC on May 22, 2026. The issue has been resolved now. Type: Incident

Affected Components:

<p><small>May <var data-var='date'> 22</var>, <var data-var='time'>21:00:01</var> GMT+0</small><br><strong>Resolved</strong> - Some API requests may have experienced elevated error rates for approximately 2-3 minutes starting at 16:43 UTC on May 22, 2026. The issue has been resolved now..</p> ]]> Fri, 22 May 2026 21:00:01 +0000 https://status.katohq.com/incident/cmsi2mvx704zh0yn38lccqeu2 https://status.katohq.com/incident/cmsi2mvx704zh0yn38lccqeu2 API users may see increased error rates for GPT-5.4 and GPT-5.5 Type: Incident Duration: 2 days, 17 hours and 22 minutes Affected Components: OpenAI May 19, 23:32:19 GMT+0 - Identified - We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation. May 19, 23:38:09 GMT+0 - Monitoring - We have applied the mitigation and are monitoring the recovery. May 19, 23:59:03 GMT+0 - Monitoring - We have applied the mitigation and are monitoring the recovery. May 20, 00:37:42 GMT+0 - Resolved - All impacted services have now fully recovered. Type: Incident

Duration: 2 days, 17 hours and 22 minutes

Affected Components:

<p><small>May <var data-var='date'> 19</var>, <var data-var='time'>23:32:19</var> GMT+0</small><br><strong>Identified</strong> - We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation..</p> <p><small>May <var data-var='date'> 19</var>, <var data-var='time'>23:38:09</var> GMT+0</small><br><strong>Monitoring</strong> - We have applied the mitigation and are monitoring the recovery..</p> <p><small>May <var data-var='date'> 19</var>, <var data-var='time'>23:59:03</var> GMT+0</small><br><strong>Monitoring</strong> - We have applied the mitigation and are monitoring the recovery..</p> <p><small>May <var data-var='date'> 20</var>, <var data-var='time'>00:37:42</var> GMT+0</small><br><strong>Resolved</strong> - All impacted services have now fully recovered..</p> ]]> Tue, 19 May 2026 23:32:19 +0000 https://status.katohq.com/incident/cmsi2jdyr04qb0rpb96rqmu2w https://status.katohq.com/incident/cmsi2jdyr04qb0rpb96rqmu2w EU Residency - Issue with the Agents platform, TTS and Scribe in the EU residency server Type: Incident Duration: 1 day, 6 hours and 14 minutes Affected Components: ElevenLabs May 15, 09:42:51 GMT+0 - Resolved - The issue has been resolved. We will publish a public write-up on this status page once the investigation is completed. May 15, 09:12:36 GMT+0 - Investigating - We are currently investigating an issue with the Agents platform, TTS and Scribe in the EU residency server. May 15, 09:30:13 GMT+0 - Monitoring - We have released an update, and the error rate is back to normal. We are currently monitoring the situation. Type: Incident

Duration: 1 day, 6 hours and 14 minutes

Affected Components:

<p><small>May <var data-var='date'> 15</var>, <var data-var='time'>09:42:51</var> GMT+0</small><br><strong>Resolved</strong> - The issue has been resolved. We will publish a public write-up on this status page once the investigation is completed..</p> <p><small>May <var data-var='date'> 15</var>, <var data-var='time'>09:12:36</var> GMT+0</small><br><strong>Investigating</strong> - We are currently investigating an issue with the Agents platform, TTS and Scribe in the EU residency server..</p> <p><small>May <var data-var='date'> 15</var>, <var data-var='time'>09:30:13</var> GMT+0</small><br><strong>Monitoring</strong> - We have released an update, and the error rate is back to normal. We are currently monitoring the situation..</p> ]]> Fri, 15 May 2026 09:12:36 +0000 https://status.katohq.com/incident/cmsi2o9iu04gf0kpbu0x0s3gm https://status.katohq.com/incident/cmsi2o9iu04gf0kpbu0x0s3gm Elevated error rates with GPT 5.5 Type: Incident Duration: 2 days, 8 hours and 35 minutes Affected Components: OpenAI May 11, 16:11:00 GMT+0 - Investigating - We are investigating the issue for the listed services. May 11, 16:35:00 GMT+0 - Identified - We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation. May 11, 16:54:00 GMT+0 - Monitoring - We have applied the mitigation and are monitoring the recovery. May 11, 17:59:00 GMT+0 - Resolved - All impacted services have now fully recovered. Type: Incident

Duration: 2 days, 8 hours and 35 minutes

Affected Components:

<p><small>May <var data-var='date'> 11</var>, <var data-var='time'>16:11:00</var> GMT+0</small><br><strong>Investigating</strong> - We are investigating the issue for the listed services..</p> <p><small>May <var data-var='date'> 11</var>, <var data-var='time'>16:35:00</var> GMT+0</small><br><strong>Identified</strong> - We have identified that users are experiencing elevated errors for the impacted services. We are working on implementing a mitigation..</p> <p><small>May <var data-var='date'> 11</var>, <var data-var='time'>16:54:00</var> GMT+0</small><br><strong>Monitoring</strong> - We have applied the mitigation and are monitoring the recovery..</p> <p><small>May <var data-var='date'> 11</var>, <var data-var='time'>17:59:00</var> GMT+0</small><br><strong>Resolved</strong> - All impacted services have now fully recovered..</p> ]]> Mon, 11 May 2026 17:02:24 +0000 https://status.katohq.com/incident/cmsi2je1b04qd0rpbjlin5d5i https://status.katohq.com/incident/cmsi2je1b04qd0rpbjlin5d5i Increased Error Rate for gpt-5.5 model in the API Type: Incident Duration: 4 days, 7 hours and 41 minutes Affected Components: OpenAI May 8, 12:31:00 GMT+0 - Investigating - We are investigating the issue for the listed services. May 8, 13:26:14 GMT+0 - Investigating - We are seeing partial recovery, but are still working on implementing additional mitigations. May 8, 13:42:57 GMT+0 - Identified - We implemented the mitigations and are observing reduction in error rates, but are still seeing higher than normal latency. May 8, 13:57:35 GMT+0 - Monitoring - We have applied the mitigation and are monitoring the recovery. May 8, 14:14:41 GMT+0 - Resolved - All impacted services have now fully recovered. Type: Incident

Duration: 4 days, 7 hours and 41 minutes

Affected Components:

<p><small>May <var data-var='date'> 8</var>, <var data-var='time'>12:31:00</var> GMT+0</small><br><strong>Investigating</strong> - We are investigating the issue for the listed services..</p> <p><small>May <var data-var='date'> 8</var>, <var data-var='time'>13:26:14</var> GMT+0</small><br><strong>Investigating</strong> - We are seeing partial recovery, but are still working on implementing additional mitigations..</p> <p><small>May <var data-var='date'> 8</var>, <var data-var='time'>13:42:57</var> GMT+0</small><br><strong>Identified</strong> - We implemented the mitigations and are observing reduction in error rates, but are still seeing higher than normal latency..</p> <p><small>May <var data-var='date'> 8</var>, <var data-var='time'>13:57:35</var> GMT+0</small><br><strong>Monitoring</strong> - We have applied the mitigation and are monitoring the recovery..</p> <p><small>May <var data-var='date'> 8</var>, <var data-var='time'>14:14:41</var> GMT+0</small><br><strong>Resolved</strong> - All impacted services have now fully recovered..</p> ]]> Fri, 8 May 2026 12:31:00 +0000 https://status.katohq.com/incident/cmsi2je1t04qe0rpbtft52xfp https://status.katohq.com/incident/cmsi2je1t04qe0rpbtft52xfp