Anthropic Incident History
Anthropic is currently operational with all systems functioning normally.
Incident History
Showing incidents from the last 15 days
Report: "Elevated errors on Claude Opus 5 and Haiku 4.5"
Last updateAs of 7:34 PST / 14:34 UTC the errors have returned to baseline.
Haiku 4.5 is also returning errors.
We are currently investigating this issue.
We are continuing to investigate this issue.
We are currently investigating this issue.
Report: "Elevated errors on Claude Opus 5"
Last updateAs of 4:47 PST / 11:47 UTC the errors have returned to baseline.
We are currently investigating this issue.
Report: "Elevated errors on Claude Opus 5"
Last updateAs of 2:03 PST / 9:03 UTC the errors have returned to baseline.
We are currently investigating this issue.
Report: "Elevated errors for Opus 5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are continuing to work on a fix for this issue.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Elevated errors for Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other models"
Last updateThis incident has been resolved.
We are investigating elevated errors on requests to Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.
Report: "Elevated errors for Mythos 5, Fable 5, Opus 5 and Claude Haiku 4.5"
Last updateThis incident has been resolved.
The issue has been identified and a fix is being implemented.
We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, and Claude Haiku 4.5. We will provide an update as soon as possible.
Report: "Sonnet 4.6 and Sonnet 5 errors elevated"
Last updateFor approximately 10 minutes, error rates on Sonnet 4.6 and 5 were elevated. Service returned to normal at approximately 11:07a PDT.
Report: "Microsoft Office add-in availability"
Last updateThis issue has been resolved.
Users who installed the following add-ins may experience issues accessing the add-in functionality: Claude by Anthropic for PowerPoint, Claude by Anthropic for Word, and Claude by Anthropic for Excel. To regain immediate access to Claude for Microsoft 365, install the add-in here: https://marketplace.microsoft.com/en-us/product/office/wa200010725
Report: "Elevated error rate on Opus 4.8"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are currently investigating this issue.
Report: "Elevated errors on Haiku 4.5"
Last updateThis incident has been resolved.
We are currently investigating this issue.
Report: "Service disruption on Claude Services"
Last updateThis incident has been resolved.
The issue has been identified and a fix is being implemented.
We are investigating an outage affecting features such as document creation in claude.ai, Cowork Remote, Claude Code, Claude Code on the Web, Claude Tag, and Claude Design
Report: "Elevated error rates for Sonnet 5"
Last updateThis incident has been resolved.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Elevated errors on Opus 4.8 and Haiku 4.5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are continuing to work on a fix for this issue. Haiku 4.5 has recovered
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Elevated errors for Claude Opus 4.1"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
Report: "Elevated errors on several models"
Last updateFrom 8:28am PT / 15:28 UTC through 9:26am PT / 16:26 UTC users experienced elevated errors on requests to multiple Claude models. This issue has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Service disruption on Claude services"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are continuing to work on a fix for this issue.
We are continuing to work on a fix for this issue.
We are continuing to work on a fix for this issue.
We are investigating an outage affecting features such as document creation in claude.ai, Cowork Remote, Claude Code, Claude Code on the Web, Claude Tag, and Claude Design
Report: "Elevated errors on Haiku 4.5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Elevated errors across Fable 5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are continuing to investigate this issue.
We are currently investigating this issue.
Report: "Elevated errors across models"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are currently investigating issues with Claude Haiku 4.5 and Opus 4.8.
Report: "Elevated errors on Haiku 4.5"
Last updateThis incident has been resolved.
We are continuing to work on a fix for this issue.
The issue has been identified and a fix is being implemented.
Report: "Elevated errors for Claude Opus 4.8"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Elevated errors on Haiku 4.5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Fable 5 requiring usage credits on Max plans"
Last updateThis incident has been resolved.
Some Claude Code Max plan users were incorrectly prompted to use usage credits to access Fable 5, which is included in their plan. If you were affected, please restart Claude Code.
Report: "Elevated error rates for Opus 4.5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are continuing to work on a fix for this issue.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Elevated errors across Fable 5"
Last updateThis issue has been resolved, and Claude Fable 5 is available once again without usage credits, as expected.
We have applied a fix to resolve the erroneous requirement for usage credits on Fable 5, and are monitoring to ensure no further issues. You may need to relaunch Claude.ai or Claude Code to restore access as expected.
We are aware of an issue preventing users from selecting Claude Fable 5 within Claude.ai, Claude Code, and other surfaces, and are working to resolve this issue.
We are currently investigating this issue.
Report: "Elevated error rates for Sonnet 5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are continuing to investigate this issue.
We are currently investigating this issue.
Report: "Elevated errors for Claude Opus 4.8"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
Report: "Elevated errors on Sonnet 5 and Haiku 4.5"
Last updateThis incident has been resolved.
The issue has been identified and a fix is being implemented.
A fix has been implemented and we are monitoring the results.
We are currently investigating this issue.
Report: "Elevated errors for multiple models"
Last updateThis issue has been resolved. From 11:30am PT / 18:30 UTC through to 3:15pm PT / 22:15 UTC some users experienced elevated errors on requests to Claude Models. Most errors were experienced within the first hour of the impact window.
We have seen success rates recover and are continuing to monitor closely to ensure no further issues. We will provide an additional update shortly.
At this time, we are seeing recovery on requests to most models. We are continuing to see elevated errors on requests to Claude Fable 5 and Mythos 5, and are working to resolve these remaining issues. We will provide an additional update as soon as possible.
We are continuing to work to resolve issues resulting in elevated errors on requests to some Anthropic models. We will provide additional updates as soon as possible.
We have identified the cause of elevated errors on requests to multiple models, and are working to resolve this issue. We will provide an update as soon as possible.
We are investigating elevated errors on requests to multiple models. We will provide an update as soon as possible.
Report: "Elevated errors for Claude Opus 4.7"
Last updateThis incident has been resolved.
We are currently investigating this issue.
Report: "Enterprise SSO sign-in failures"
Last updateThis incident has been resolved.
The issue has been identified and a fix is being implemented.
Report: "Elevated errors on Claude Sonnet 5"
Last updateThis incident has been resolved.
We are currently investigating this issue.
Report: "Elevated errors on multiple models"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
The issue has been identified and a fix is being implemented.
We are currently investigating this issue.
Report: "Partial outage of claude.ai: container creation"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results
We are continuing to investigate this issue.
We are investigating an outage affecting features such as document creation in claude.ai, Cowork Remote, Claude Code, Claude Code Remote, and Claude Design
Report: "Elevated errors on Claude Haiku 4.5"
Last updateThis incident has been resolved.
A fix has been implemented and we are monitoring the results.
We are currently investigating this issue.