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Weights & Biases Outage History

Uptime record, past incidents, and downtime history for Weights & Biases.

Checking current status...
69.2% uptime over 91 days
99.9% ✗ 99.5% ✗ 99% ✗ 95% ✗

90-Day Trend

Feb 25May 25

Monthly Uptime

Month Uptime Days Tracked Days with Issues
May 2026 80% 25 5
April 2026 63.3% 30 11
March 2026 74.2% 31 8
February 2026 20% 5 4

Uptime is calculated from daily worst-status snapshots. A day with any non-operational status counts as a day with issues.

Daily Status (Last 91 Days)

Feb 24 Today
Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

May 2026
Delayed Metrics Processing – Workspace & API Updates Impacted
minor

Started: May 15, 1:51 PM

identified
We are currently experiencing delays in processing newly logged metrics. As a result, recent metrics from active runs may take longer than usual to appear in charts, dashboards, reports, and API queries. No data is lost. All metrics are being processed and will become visible once the backlog clears. We are actively working to restore normal processing times and will provide updates here.
May 15, 1:51 PM
Run Update Ingest Delays
minor

Started: May 10, 1:19 PM

monitoring
A fix has been implemented and we are monitoring the results.
May 10, 2:56 PM
identified
We identified an issue where updates to W&B Models runs may be delayed for up to 30 minutes. There is no data loss.
May 10, 1:19 PM
API Errors

Started: May 4, 3:50 PM

monitoring
We are continuing to monitor for any further issues.
May 5, 12:36 AM
monitoring
A fix has been implemented and we are monitoring the results.
May 5, 12:31 AM
investigating
We are currently investigating this issue.
May 4, 10:42 PM
monitoring
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, 5:57 PM
investigating
We are currently investigating this issue.
May 4, 3:50 PM
April 2026
Delayed Metrics Processing – Workspace & API Updates Impacted
minor

Started: Apr 29, 3:51 PM

identified
We are currently experiencing delays in processing newly logged metrics. As a result, recent metrics from active runs may take longer than usual to appear in charts, dashboards, reports, and API queries. No data is lost. All metrics are being processed and will become visible once the backlog clears. We are actively working to restore normal processing times and will provide updates here.
Apr 29, 3:51 PM
Backend API Errors
minor

Started: Apr 28, 10:41 PM

investigating
We are currently investigating an issue where API requests may sporadically fail.
Apr 28, 10:41 PM
Elevated API Errors

Started: Apr 22, 6:00 AM

monitoring
We are continuing to monitor for any further issues.
Apr 22, 3:30 PM
monitoring
The issue has been identified and a fix has been rolled out. We are monitoring for any further issues.
Apr 22, 7:43 AM
investigating
We are currently investigating an issue where requests are failing.
Apr 22, 6:51 AM
API and UI outage

Started: Apr 6, 3:26 PM

monitoring
We are seeing the site recover and be fully operational - we are continuing to actively monitor the situation to ensure stability.
Apr 6, 5:12 PM
monitoring
A fix has been implemented and we are monitoring the results.
Apr 6, 4:51 PM
identified
The issue has been identified and a fix is being implemented.
Apr 6, 3:26 PM
Delay in files and media getting uploaded
major

Started: Apr 2, 2:15 AM

identified
We are continuing to work on a fix for this issue.
Apr 2, 2:15 AM
identified
We have identified a delay in files and media getting uploaded.
Apr 2, 2:15 AM
March 2026
W&B Inference Maintenance
major

Started: Mar 31, 4:52 PM

investigating
The W&B Inference endpoint is currently unavailable. This is due to some maintenance on the gateway that was scheduled but that we missed the announcement step for. We expect intermittent outages between 9am and 11am PDT. We apologize for any inconvenience.
Mar 31, 4:52 PM
Elevated API Errors
major

Started: Mar 20, 8:55 PM

investigating
We're experiencing an elevated level of API errors and are currently looking into the issue.
Mar 20, 8:55 PM
investigating
We're experiencing an elevated level of API errors and are currently looking into the issue.
Mar 20, 8:55 PM
Elevated API request latencies
minor

Started: Mar 11, 11:58 PM

monitoring
We've deployed mitigations and are actively monitoring. Request latencies have decreased but are not yet back to baseline. We appreciate your patience as we work to resolve this issue.
Mar 11, 11:58 PM
investigating
We are aware of an issue causing elevated API request latencies, resulting in degraded performance in the UI and SDK. Recent changes in traffic patterns are resulting in increased load, which we urgently are working to address.
Mar 11, 5:50 PM
Delayed Metrics Processing – Workspace & API Updates Impacted
minor

Started: Mar 7, 8:28 PM

identified
We are currently experiencing delays in processing newly logged metrics. As a result, recent metrics from active runs may take longer than usual to appear in charts, dashboards, reports, and API queries. No data is lost. All metrics are being processed and will become visible once the backlog clears. We are actively working to restore normal processing times and will provide updates here.
Mar 7, 8:28 PM
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