- Level
- confirmed
- Worst impact
- Partial outage
- Components
- GPT-OSS-120B
- Down Index
- 45of 100
What to do
Check whether you use Cerebras GPT-OSS-120B. Check your stack
Drop a package.json, lockfile, Terraform or a list of domains at down.guide to see every provider you depend on.Confirm your retries, queues and scheduled jobs caught up after the 1h 25m it lasted.
Anything that failed between 2025-09-12 19:13 UTC and 2025-09-12 20:38 UTC may need a replay.Subscribe to Cerebras's feed to hear about the next one first. RSS feed
https://down.guide/feed?provider=cerebras works in Slack (/feed subscribe), Discord feed bots and any RSS reader.
Updates from Cerebras 2
- investigating
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.
provider
- resolved
This incident has been resolved.
provider
Reports count in aggregate; nothing about you is shown.
Corrections
None so far.
Something wrong on this page? Report an error or send us a note. Every fix is listed here.
Questions about DWN-7920274843
Is Cerebras still down?
No, this incident was resolved 2025-09-12 20:38 UTC. For Cerebras's live state, see https://down.guide/providers/cerebras.
How long did it last?
1h 25m, from 2025-09-12 19:13 UTC to 2025-09-12 20:38 UTC, by the times Cerebras posted.
What was affected?
Cerebras named GPT-OSS-120B.
What caused it?
Cerebras hasn't published a root cause. If it does, it shows here.
Where does this come from?
Cerebras's official status page, https://status.cerebras.ai, quoted verbatim. down.guide's own probes, reports and social counts are labeled as ours.