- 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
Paste a package.json, lockfile, Terraform or a list of domains at down.guide/stack 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/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.