Weights & Biases incident

Ingestion delay for some projects

Minor Resolved View vendor source →

Weights & Biases experienced a minor incident on January 15, 2026 affecting Backend API and Frontend, lasting 13h 38m. The incident has been resolved; the full update timeline is below.

Started
Jan 15, 2026, 04:48 AM UTC
Resolved
Jan 15, 2026, 06:26 PM UTC
Duration
13h 38m
Detected by Pingoru
Jan 15, 2026, 04:48 AM UTC

Affected components

Backend APIFrontend

Update timeline

  1. identified Jan 15, 2026, 04:48 AM UTC

    We are aware of ingestion delay for some projects and working to resolve it.

  2. identified Jan 15, 2026, 07:13 AM UTC

    We have implemented a mitigation and are making progress against the backlog.

  3. resolved Jan 15, 2026, 06:26 PM UTC

    Our systems have fully caught up with the backlog. The API should correctly return up-to-date metrics for experiments in all projects. We sincerely appreciate your patience as we worked to resolve the issue.