API Errors
Was Weights & Biases down? Weights & Biases reported “API Errors” on May 4, 2026, 3:50 PM UTC. Full timeline below. This incident affects Weights & Biases — see live Weights & Biases status. Source: official vendor status feed.
Timeline
May 5, 2026, 4:03 AM UTC
This incident has been resolved.
May 5, 2026, 12:36 AM UTC
We are continuing to monitor for any further issues.
May 5, 2026, 12:31 AM UTC
A fix has been implemented and we are monitoring the results.
May 4, 2026, 10:42 PM UTC
We are currently investigating this issue.
May 4, 2026, 5:57 PM UTC
The frontend and backend APIs have fully recovered after we mitigated excess load on the system. We will continue to actively monitor the situation to ensure stability.
May 4, 2026, 3:50 PM UTC
We are currently investigating this issue.
More Weights & Biases outages
- API DegradedSep 1, 2026, 2:40 PM UTC · resolvedResolved
- Errors fetching media filesJul 15, 2026, 10:35 PM UTC · resolvedResolved
- Metric Ingestion BackupJul 15, 2026, 6:46 AM UTC · resolvedDegraded
- Metrics Ingestion BackupJul 13, 2026, 6:04 AM UTC · resolvedDegraded
- Metric Ingestion BacklogJul 12, 2026, 4:38 AM UTC · resolvedDegraded
- Timeouts and 503s for serverless inferenceJul 11, 2026, 3:11 AM UTC · resolvedPartial outage