Get email notifications whenever Claude creates, updates or resolves an incident.
Get text message notifications whenever Claude creates or resolves an incident.
Get incident updates and maintenance status messages in Slack.
Subscribe via Slack
By subscribing you acknowledge our Privacy Policy. In addition, you agree to the Atlassian Cloud Terms of Service and acknowledge Atlassian's Privacy Policy.
Get incident updates and maintenance status messages in Microsoft Teams channel.
By subscribing you acknowledge our Privacy Policy. In addition, you agree to the Atlassian Cloud Terms of Service and acknowledge Atlassian's Privacy Policy.
Get webhook notifications whenever Claude creates an incident, updates an incident, resolves an incident or changes a component status.
All Systems Operational
Uptime over the past 90 days. View historical uptime.
claude.ai
Operational
90 days ago
99.23
% uptime
Today
platform.claude.com (formerly console.anthropic.com)
Operational
90 days ago
99.58
% uptime
Today
Claude API (api.anthropic.com)
Operational
90 days ago
99.5
% uptime
Today
Claude Code
Operational
90 days ago
99.56
% uptime
Today
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance
Major outage
Partial outage
No downtime recorded on this day.
No data exists for this day.
had a major outage.
had a partial outage.
Related
No incidents or maintenance related to this downtime.
Past Incidents
Sep 18, 2025
Resolved -
This incident has been resolved.
Sep 18, 20:55 UTC
Sep 18, 20:55 UTC
Monitoring -
As of 13:40 PT / 20:40 UTC all the models are at the baseline error rate.
Sep 18, 20:41 UTC
Sep 18, 20:41 UTC
Identified -
As of 13:30 PT / 20:30 UTC all the models have returned to the baseline error rate except for Claude Sonnet 3.5 where it is still high.
All the models have been affected by this incident, except for Sonnet 4.0.
Sep 18, 20:32 UTC
All the models have been affected by this incident, except for Sonnet 4.0.
Sep 18, 20:32 UTC
Investigating -
We are investigating an issue across many models that started at 12:35 PT / 19:35 UTC.
Sep 18, 19:57 UTC
Sep 18, 19:57 UTC
Sep 17, 2025
Resolved -
This incident has now been resolved. We've published a technical postmortem on https://anthropic.com/engineering/a-postmortem-of-three-recent-issues.
Sep 17, 20:38 UTC
Sep 17, 20:38 UTC
Monitoring -
We've identified the root causes of the reported quality issues and deployed mitigations for each. We do not see any ongoing issues at this time. We are continuing to monitor and evaluate these mitigations out of an abundance of caution.
A technical post-mortem will be published on our engineering blog next week.
Sep 12, 18:40 UTC
A technical post-mortem will be published on our engineering blog next week.
Sep 12, 18:40 UTC
Update -
The second issue has also been identified to impact Opus 3.
Sep 12, 18:30 UTC
Sep 12, 18:30 UTC
Investigating -
Last week, we opened an incident to investigate degraded quality in some Claude model responses. We found two separate issues that we’ve now resolved. We are continuing to monitor for any ongoing quality issues, including reports of degradation for Claude Opus 4.1.
Resolved issue 1 - A small percentage of Claude Sonnet 4 requests experienced degraded output quality due to a bug from Aug 5-Sep 4, with the impact increasing from Aug 29-Sep 4. A fix has been rolled out and this incident has been resolved.
Resolved issue 2 - A separate bug affected output quality for some Claude Haiku 3.5 and Claude Sonnet 4 requests from Aug 26-Sep 5. A fix has been rolled out and this incident has been resolved.
Importantly, we never intentionally degrade model quality as a result of demand or other factors, and the issues mentioned above stem from unrelated bugs.
We're grateful to the detailed community reports that helped us identify and isolate these bugs. We're continuing to investigate and will share an update by the end of the week.
Sep 9, 00:15 UTC
Resolved issue 1 - A small percentage of Claude Sonnet 4 requests experienced degraded output quality due to a bug from Aug 5-Sep 4, with the impact increasing from Aug 29-Sep 4. A fix has been rolled out and this incident has been resolved.
Resolved issue 2 - A separate bug affected output quality for some Claude Haiku 3.5 and Claude Sonnet 4 requests from Aug 26-Sep 5. A fix has been rolled out and this incident has been resolved.
Importantly, we never intentionally degrade model quality as a result of demand or other factors, and the issues mentioned above stem from unrelated bugs.
We're grateful to the detailed community reports that helped us identify and isolate these bugs. We're continuing to investigate and will share an update by the end of the week.
Sep 9, 00:15 UTC
Sep 16, 2025
Resolved -
As of 1:05 PT / 8:05 UTC the errors are back to the baseline.
Sep 16, 08:32 UTC
Sep 16, 08:32 UTC
Investigating -
We are investigating an issue with Claude Sonnet 4.0 that started at 23:35 PT / 6:35 UTC.
Sep 16, 07:02 UTC
Sep 16, 07:02 UTC
Resolved -
The issue affecting Artifacts on Claude.ai has been resolved. All systems are now operating normally. We apologize for any inconvenience caused.
Sep 16, 01:24 UTC
Sep 16, 01:24 UTC
Investigating -
We are investigating issues loading Artifacts in Claude.ai.
Sep 16, 00:57 UTC
Sep 16, 00:57 UTC
Sep 15, 2025
Resolved -
The Opus 4.1 incident has been resolved as of 05:10 PT / 12:10 UTC.
Sep 15, 12:25 UTC
Sep 15, 12:25 UTC
Investigating -
We are investigating an issue with Claude Opus 4.1 that started at 04:10 PT / 11:10 UTC. This is a repeat of the incident earlier.
Sep 15, 11:22 UTC
Sep 15, 11:22 UTC
Resolved -
This incident has been resolved.
Sep 15, 12:25 UTC
Sep 15, 12:25 UTC
Update -
The Haiku incident has been resolved as of 04:30 PT / 11:30 UTC.
Sep 15, 12:24 UTC
Sep 15, 12:24 UTC
Update -
The last error message referred to Claude Opus 4.1 by mistake. The affected model is Claude Haiku 3.5.
Sep 15, 11:12 UTC
Sep 15, 11:12 UTC
Investigating -
We are investigating an issue with Claude Haiku 3.5 that started at 3:45 PT / 10:45 UTC.
Sep 15, 11:07 UTC
Sep 15, 11:07 UTC
Resolved -
As of 2:00 PT / 9:00 UTC the incident is mitigated.
Sep 15, 09:15 UTC
Sep 15, 09:15 UTC
Update -
Initial wave of errors stopped at 00:40 PT / 07:40 UTC but have started again at 01:20 PT / 08:20 UTC.
Sep 15, 08:40 UTC
Sep 15, 08:40 UTC
Investigating -
We are investigating an issue with Claude Opus 4.1 that started at 23:15 PT / 6:15 UTC.
Sep 15, 07:24 UTC
Sep 15, 07:24 UTC
Sep 14, 2025
No incidents reported.
Sep 13, 2025
No incidents reported.
Sep 12, 2025
Resolved -
Claude Sonnet 3.7 experience errors from 15:40-15:51 PT (22:40-22:41 UTC). This has been resolved and no additional errors are expected.
Sep 12, 22:40 UTC
Sep 12, 22:40 UTC
Sep 11, 2025
Resolved -
As of 7:05 PT / 14:05 UTC the errors have returned to the baseline.
Sep 11, 14:29 UTC
Sep 11, 14:29 UTC
Investigating -
We are investigating an issue with Claude Opus 4.1 that started at 6:10 PT / 13:10 UTC.
Sep 11, 13:27 UTC
Sep 11, 13:27 UTC
Sep 10, 2025
Resolved -
Resolved and monitoring
Sep 10, 21:00 UTC
Sep 10, 21:00 UTC
Resolved -
This incident has been resolved.
Sep 10, 17:36 UTC
Sep 10, 17:36 UTC
Update -
We are continuing to monitor services.
Sep 10, 17:30 UTC
Sep 10, 17:30 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Sep 10, 17:15 UTC
Sep 10, 17:15 UTC
Update -
A fix has been implemented and we are monitoring the results.
Sep 10, 16:55 UTC
Sep 10, 16:55 UTC
Update -
A fix has been implemented and we are monitoring the results.
Sep 10, 16:37 UTC
Sep 10, 16:37 UTC
Identified -
APIs, Console, and Claude.ai are down. Services will be restored as soon as possible.
Sep 10, 16:28 UTC
Sep 10, 16:28 UTC
Resolved -
This incident has been resolved.
Sep 10, 09:25 UTC
Sep 10, 09:25 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Sep 10, 09:14 UTC
Sep 10, 09:14 UTC
Identified -
The issue has been identified and a fix is being implemented.
Sep 10, 08:18 UTC
Sep 10, 08:18 UTC
Investigating -
We are investigating an issue with Claude Sonnet 4.0 that started at 23:53 PT / 6:53 UTC
Sep 10, 07:32 UTC
Sep 10, 07:32 UTC
Sep 9, 2025
Resolved -
This incident has been resolved.
Sep 9, 05:56 UTC
Sep 9, 05:56 UTC
Investigating -
We are currently investigating this issue.
Sep 9, 02:27 UTC
Sep 9, 02:27 UTC
Sep 8, 2025
No incidents reported.
Sep 7, 2025
No incidents reported.
Sep 6, 2025
No incidents reported.
Sep 5, 2025
Resolved -
This incident has been resolved.
Sep 5, 22:10 UTC
Sep 5, 22:10 UTC
Update -
We've re-enabled Opus 4.1 on Claude.ai
Sep 5, 21:40 UTC
Sep 5, 21:40 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Sep 5, 21:33 UTC
Sep 5, 21:33 UTC
Update -
We've temporarily disabled Opus 4.1 on Claude.ai
Sep 5, 21:02 UTC
Sep 5, 21:02 UTC
Identified -
The issue has been identified and a fix is being implemented.
Sep 5, 21:01 UTC
Sep 5, 21:01 UTC
Investigating -
We are currently investigating this issue.
Sep 5, 20:31 UTC
Sep 5, 20:31 UTC
Resolved -
This incident has been resolved.
Sep 5, 19:24 UTC
Sep 5, 19:24 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Sep 5, 19:22 UTC
Sep 5, 19:22 UTC
Investigating -
We are currently investigating this issue.
Sep 5, 19:09 UTC
Sep 5, 19:09 UTC
Sep 4, 2025
Resolved -
This incident has been resolved.
Sep 4, 17:28 UTC
Sep 4, 17:28 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Sep 4, 17:11 UTC
Sep 4, 17:11 UTC
Investigating -
We are currently investigating this issue.
Sep 4, 16:33 UTC
Sep 4, 16:33 UTC
Resolved -
As of 8:15 PT / 15:15 UTC the errors have returned to the baseline.
Sep 4, 15:30 UTC
Sep 4, 15:30 UTC
Monitoring -
A fix has been implemented and we are monitoring the results.
Sep 4, 15:20 UTC
Sep 4, 15:20 UTC
Investigating -
We are investigating an issue with Claude Opus 4.1 that started at 7:30 PT / 14:30 UTC.
Sep 4, 14:51 UTC
Sep 4, 14:51 UTC
Resolved -
As of 7:30 PT / 14:30 UTC we have resolved this incident.
Sep 4, 14:59 UTC
Sep 4, 14:59 UTC
Investigating -
We are investigating an issue with Claude Haiku 3.5 that started at 6:00 PT / 13:00 UTC.
Sep 4, 13:57 UTC
Sep 4, 13:57 UTC
Resolved -
As of 23:50 PT / 6:50 UTC, we have mitigated the incident.
Sep 4, 07:00 UTC
Sep 4, 07:00 UTC
Investigating -
We are investigating an issue with Claude Sonnet 4.0 that started at 23:25 PT / 6:25 UTC.
Sep 4, 06:44 UTC
Sep 4, 06:44 UTC