Cerebras experienced a notice incident on October 22, 2025 affecting Qwen-3-235B-Instruct-2507 and GPT-OSS-120B, lasting 4h 54m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Oct 22, 2025, 04:18 PM UTC
We are experiencing degradation of service across several of our models. Our engineering team is working to identify the root cause and restore stability to our systems.
- identified Oct 22, 2025, 05:01 PM UTC
We've identified that the combination of high load and a network routing issue resulted in higher queue times and rejection rates. ETA on resolution is a few hours.
- identified Oct 22, 2025, 06:01 PM UTC
Our teams are continuing to work to resolve this issue. We appreciate your patience.
- monitoring Oct 22, 2025, 07:44 PM UTC
A fix has been implemented, availability is returning to 100%, and latency times are improving. We will continue to monitor over the next few hours.
- resolved Oct 22, 2025, 09:13 PM UTC
This incident has been resolved.