Cerebras experienced a major incident on September 12, 2025 affecting GPT-OSS-120B, lasting 1h 25m. The incident has been resolved; the full update timeline is below.
Affected components
GPT-OSS-120B
Update timeline
- investigating Sep 12, 2025, 07:13 PM UTC
Some users are seeing intermittent 404 errors starting around 8 AM PT on 9/12/2025 due to an API gateway routing issue. Engineering is investigating and is working on a prompt resolution.
- resolved Sep 12, 2025, 08:38 PM UTC
This incident has been resolved.