Cerebras Inference outage on November 3, 2026: what happened and how long it lasted
On November 3, 2026, Cerebras had degraded performance between 17:07 and 19:41 UTC, about 2.6 h in total. The vendor posted 1 incident.
Timeline（UTC）
- OfficialOfficial incident posted: Partial Service Disruption
- OfficialOfficially resolved: Partial Service Disruption
Hourly measurements (UTC)
Also affected that day: DeepSeek API
Official updates（UTC）
- monitoringSome models may be temporarily unavailable since 16:52, Nov 3rd UTC. We have identified the root cause, implemented the fix and are monitoring the situation.
- resolvedThis incident has been resolved.
Cerebras Inference reliability lately
Measured availability over the last 30 days: 100.00%; 0 days with an outage or degradation in the last 90 days.
Alternatives while Cerebras Inference is down
Open one to see whether it is up right now.
FAQ
Was Cerebras Inference down on November 3, 2026?
On November 3, 2026, Cerebras had degraded performance between 17:07 and 19:41 UTC, about 2.6 h in total. The vendor posted 1 incident.
Why was Cerebras Inference down?
The vendor's own description: Partial Service Disruption. See the official status page for the root cause.
Is Cerebras Inference working now?
It is working normally now. Live status: https://modelbank.ai/status/cerebras (tested every 2 minutes).
What can I use instead when Cerebras Inference is down?
Switch temporarily to OpenRouter API, GroqCloud, Fireworks, Together, SiliconCloud, SambaCloud — check on ModelBank that they are up first.
Does Cerebras Inference go down often?
Measured availability over the last 30 days: 100.00%; 0 days with an outage or degradation in the last 90 days.
How do I hear about the next outage first?
Subscribe for free on ModelBank: email, browser push, or Slack / Discord / Feishu.
Sources: ModelBank's probes every 2 minutes and Cerebras Inference's official status page. Please cite this page when quoting.