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Weights & Biases Outage History

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

Checking current status...
73.6% uptime over 91 days
99.9% ✗ 99.5% ✗ 99% ✗ 95% ✗

90-Day Trend

Apr 11Jul 9

Monthly Uptime

Month Uptime Days Tracked Days with Issues
July 2026 100% 9 0
June 2026 73.3% 30 8
May 2026 77.4% 31 7
April 2026 57.1% 21 9

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)

Apr 10 Today
Operational Degraded Partial Outage Major Outage Maintenance No Data

Incident History

June 2026
Logins failing

Started: Jun 26, 7:28 AM

monitoring
An Auth0 incident that had earlier prevented logins has recovered, allowing restored login access. We are continuing to monitor the situation. Auth0 Incident: https://status.auth0.com/incidents/z8sc9m1gzqb7
Jun 26, 7:28 AM
identified
We have identified an issue with Auth0 that may cause some users to be unable to log in.
Jun 26, 7:18 AM
investigating
We are investigating an issue where logging in to wandb.ai may fail for some users.
Jun 26, 7:13 AM
Web App loading issue
critical

Started: Jun 14, 7:37 AM

monitoring
A fix has been deployed and we are monitoring.
Jun 14, 9:30 AM
investigating
We are continuing to investigate this issue.
Jun 14, 7:37 AM
investigating
We're investigating reports of the W&B web app (app.wandb.ai) showing a blank page on load for some users. The API and SDK data logging remain operational. A fix is in progress and we'll share an update soon.
Jun 14, 7:37 AM
Metric ingestion delayed
minor

Started: Jun 9, 11:47 PM

monitoring
We identified an infrastructure issue as the root cause and have resolved it. We are rapidly working through the backlog of ingested metrics and should fully catch up soon.
Jun 10, 5:44 AM
identified
We are currently responding to delay of up to 5 hours for metrics written into wandb. We have identified the issue and are working to process metrics as quickly as possible. There is no data loss and all data will be complete once the backlog has drained. We're very sorry for the disruption.
Jun 9, 11:47 PM
Metrics ingestion delay
minor

Started: Jun 9, 9:32 AM

investigating
We are currently investigating an issue where metric ingestion is delayed for some runs up to 1 hour.
Jun 9, 9:32 AM
May 2026
Slowness and missing metrics

Started: May 26, 7:47 PM

monitoring
Starting at 10:48AM PST we experienced an incident causing missing metrics and slowness across the application. As of 12:10 PM metrics should now be restored (there was no data loss) and we are continuing to monitor performance.
May 26, 7:47 PM
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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