Cerebras experienced a major incident on February 4, 2026 affecting Qwen-3-235B-Instruct-2507, lasting 9h 7m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Feb 04, 2026, 04:59 PM UTC
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 Feb 04, 2026, 06:53 PM UTC
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 Feb 05, 2026, 02:07 AM UTC
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 Feb 05, 2026, 02:07 AM UTC
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.