Cerebras: Partial Service Disruption Qwen 235B
Anthropic outage, Feb 4, 2026 · 8 vendors, 8 incidents
Cerebras’s incident started in the same window without naming Anthropic (timing only, not evidence of a link). (timing only, posted +21 min vs Anthropic’s own post)
Swipe sideways to see the whole diagram.
Mermaid source
flowchart LR
root["Anthropic<br/>posted 16:39 UTC"]:::root
h1["Within an hour<br/>2 vendors, 2 blamed Anthropic<br/>Cursor, Deepgram"]:::blames
root --> h1
me["Cerebras (this incident)<br/>posted +21 min"]:::me
root -.->|"same window"| meFull event: timeline, evidence and all vendors →
Detected automatically from incidents that started together and named the same provider. A link means one vendor’s incident named another, not a confirmed cause.
Affected components: Qwen-3-235B-Instruct-2507
Timeline of updates
- investigating
Qwen 235B performance is degraded and temporarily unavailable for some service tiers. We are currently working to resume normal service performance. We will provide further updates as we make progress.
- monitoring
As part of recent changes in traffic patterns and capacity, we are temporarily turning down rate limits for Pay-go users to help maintain a positive experience across the board. We understand the challenges this may create for you and your users, and we sincerely apologize for the inconvenience. We plan to monitor this endpoint and evaluate restoring rate limits in the next week. Thank you for your continued partnership and understanding, please reach out to our support team for any other questions.
- investigating
Between 06:00 AM PT and 06:00 PM PT users experienced service disruption with Qwen 3 235B Instruct. We have taken action to address recent changes in traffic patterns and capacity, reducing the disruption. We plan to monitor this endpoint and evaluate restoring rate limits in the next week for Pay Go users.
- resolved
Between 06:00 AM PT and 06:00 PM PT users experienced service disruption with Qwen 3 235B Instruct. We have taken action to address recent changes in traffic patterns and capacity, reducing the disruption. We plan to monitor this endpoint and evaluate restoring rate limits in the next week for Pay Go users.
Changes Rewindex caught on this incident
Archive proof
Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.
How the archive is checked, and what it cannot prove.
First version captured 17:03 UTC
In the 2026-10-19 checkpoint, timestamped by FreeTSA and DigiCert on Oct 20, 00:41 UTC. Record hash
b728619b71a65a32…
Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).