Is Cerebras Inference down? › Outage history › Jan 26, 2026
Cerebras Inference outage on Jan 26, 2026: what happened
On Jan 26, 2026, the Cerebras Inference status page reported "Z.ai GLM 4.7 Service Unavailable". About 1 hour 17 min: from Jan 26, 2026, 20:51 UTC to Jan 26, 2026, 22:08 UTC, by the official start and resolution times.
Cerebras Inference right now
At our last refresh (Oct 22, 2026, 12:35 UTC) Cerebras Inference was up: All Systems Operational.
- Started
- Jan 26, 2026, 20:51 UTC
- Resolved
- Jan 26, 2026, 22:08 UTC
- Duration
- 1 hour 17 min
- Official impact
- Critical
- Affected
- ZAI-GLM-4.7
- Source
- Z.ai GLM 4.7 Service Unavailable on the Cerebras Inference status page
The Cerebras Inference status page rated it "Critical", its highest impact level: an outage of the affected parts, not only slowness.
What caused the Cerebras Inference outage?
The Cerebras Inference status page has not published a cause. Its updates describe the symptoms only.
When was it fixed?
The Cerebras Inference status page marked it resolved at Jan 26, 2026, 22:08 UTC, 1 hour 17 min after it started. A fix was in place and being monitored from Jan 26, 2026, 21:47 UTC.
Timeline of official updates
Every update the Cerebras Inference status page posted, oldest first. Times are UTC.
Jan 26, 2026, 20:51 UTC investigating
The service is currently inaccessible. We are currently working urgently to restore service capabilities. We will provide further updates as we make progress.
Jan 26, 2026, 21:19 UTC investigating
Partial of the service has been restored, and we are currently working to resume normal service performance.
Jan 26, 2026, 21:47 UTC monitoring
A fix has been rolled out, and we are actively monitoring the situation.
Jan 26, 2026, 22:08 UTC investigating
Between 20:51 and 21:47 UTC users experienced service disruption with GLM 4.7. We have deployed a fix and the issue is now resolved.
Jan 26, 2026, 22:08 UTC resolved
This incident has been resolved.
Cerebras Inference outage questions
What caused the Cerebras Inference outage on Jan 26, 2026?
The Cerebras Inference status page has not published a cause.
When was the Cerebras Inference outage on Jan 26, 2026 fixed?
The Cerebras Inference status page marked it resolved at Jan 26, 2026, 22:08 UTC, 1 hour 17 min after it started. A fix was in place and being monitored from Jan 26, 2026, 21:47 UTC.
How long did the Cerebras Inference outage last?
About 1 hour 17 min: from Jan 26, 2026, 20:51 UTC to Jan 26, 2026, 22:08 UTC, by the official start and resolution times.
Was Cerebras Inference completely down?
The Cerebras Inference status page rated it "Critical", its highest impact level: an outage of the affected parts, not only slowness. The affected parts listed were: ZAI-GLM-4.7.
Which parts of Cerebras Inference were affected?
The Cerebras Inference status page listed: ZAI-GLM-4.7.
Other recent Cerebras Inference incidents
- Partial Service Disruption Sep 25, 2026, 12:16 UTC, 4 hours 58 min
- Resolved Aug 27, 2026, 12:05 UTC, duration not stated
- Partial Service Disruption Jul 29, 2026, 14:14 UTC, duration not stated
- Partial Service Disruption Jun 3, 2026, 14:09 UTC, 1 hour 30 min
- qwen-3-235b-a22b-instruct-2507 Service Unavailable May 1, 2026, 07:59 UTC, 58 minutes
- Service disruption with qwen-3-235b-a22b-instruct-2507 Apr 3, 2026, 10:42 UTC, duration not stated
Full Cerebras Inference outage history and biggest outages → · Recent outages across all services →
Quotes are the Cerebras Inference status page's own words, from the official incident. Is It Up or Down is independent and not affiliated with Cerebras Inference. Times are UTC.