Outage in Cerebras

Datacenter Issue Causing Minimal Degredation

Resolved Minor
October 18, 2025 - Started about 2 months ago - Lasted about 12 hours
Official incident page

Incident Report

We are experiencing issues with one of our datacenters. We are actively working on mitigation. Seeing minimal degradation of service at this point. Fortunately, this only impacts one datacenter, the rest are operational, and redundancies are in place. ETA recovery time for datacenter: 8 hours. We will actively keep you updated on the progress.
Components affected
Cerebras Llama-3.3-70B

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Latest Updates ( sorted recent to last )
RESOLVED about 2 months ago - at 10/19/2025 02:38PM

Between Oct 18th 7 PM PT and Oct 19th 6.30 AM PT users experienced minor service disruption with Llama 3.3 70B, Qwen 3 32B, GPT OSS 120B, Qwen 3 235B Thinking, Qwen 3 Coder 480B because of a datacenter issue. We have deployed the fix and the issue is now resolved.

IDENTIFIED about 2 months ago - at 10/19/2025 02:41AM

Update: The issue has been root caused to a city water supply disruption. We are actively working on mitigation.

INVESTIGATING about 2 months ago - at 10/19/2025 02:37AM

We are continuing to investigate this issue.

INVESTIGATING about 2 months ago - at 10/19/2025 02:37AM

We are experiencing issues with one of our datacenters. We are actively working on mitigation. Seeing minimal degradation of service at this point. Fortunately, this only impacts one datacenter, the rest are operational, and redundancies are in place. ETA recovery time for datacenter: 8 hours. We will actively keep you updated on the progress.

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