There were 56 Anthropic outages since March 18, 2026 totaling 82h 33m of downtime. Each is summarised below — incident details, duration, and resolution information.
Between April 2 and April 10, some users who were not signed in to Claude.ai (web, mobile, desktop) were not able to access some Claude.ai sharing links.
We are investigating reports of elevated errors on requests to Claude across all products. We will provide an update as soon as possible.
We have identified the current issue as affecting requests to models other than Claude Opus 4.6, and are working to fully resolve this issue. We will provide additional updates shortly.
The issue affecting requests to non-Opus models has been resolved.
We are currently investigating this issue.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
Certain connectors are experiencing higher error rates. We are investigating the issue.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
The issue has been identified and a fix is being implemented.
This incident has been resolved.
Some users experienced an error when trying to access Claude.ai on desktop and the web from 23:22–23:50 UTC. This issue has now been resolved.
We are investigating errors related to creating workspaces via the Claude Console at platform.claude.com and via the admin API Other functionality including inference and the messages API is not impacted
A fix has been deployed for the issue affecting API workspace creation and we are monitoring for recovery.
The issue affecting API workspace creation has been resolved. Impact occurred from approximately 4:15 PM to 7:30 PM UTC.
We have identified an issue resulting in elevated errors on Claude.ai, including desktop and mobile. Users may experience errors when attempting to login, engaging with voice mode, or completing chats with Claude. We are working to resolve this issue as soon as possible.
We have applied a fix and success rates have returned to normal. We are continuing to monitor closely to ensure there are no further issues.
From 14:32–15:12 UTC, we saw elevated errors impacting various Claude services, including Claude.ai and Claude Code authentication. These errors have been resolved.
Between 10:09 and 10:31 PDT, Sonnet 4.6 and Opus 4.6 experienced elevated error rates across most product surfaces.
We are currently investigating an issue resulting in elevated errors on requests to Claude Sonnet 4.6. We will provide an update as soon as possible.
This incident has been resolved.
We have identified an issue which results in the Claude.ai desktop application returning an error when attempting to connect. We are working to resolve this issue as quickly as possible, and the Claude.ai website is unaffected.
This incident has been resolved.
We have identified an issue resulting in elevated errors on requests to Claude Opus 4.6, and are working to resolve this. We will provide an update as soon as possible.
This incident has been resolved.
We have identified an issue which resulted in elevated rates of timeouts when making requests to Claude Opus 4.6 and Sonnet 4.6 from 17:45 UTC on March 31 through 05:52 UTC on April 1. This issue has been resolved.
We are currently investigating this issue.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
We have identified an issue which has resulted in some Claude.ai connectors becoming unavailable within the desktop application. We are working to restore access to these extensions, and will provide an update as soon as possible.
We have resolved an issue that resulted in the unavailability of connectors in the Claude.ai desktop application. Affected connectors were removed from organization allowlists, and can be manually re-added while we work to automatically restore impacted allowlists.
The issue has been identified and a fix is being implemented.
We are continuing to work on a fix for this issue.
This incident has been resolved.
Issue started at 1:33 PT / 8:53 UTC.
At baseline error rate from 2:19 PT / 9:19 UTC.
This incident has been resolved.
We've identified an issue in the latest Claude Desktop release (Claude 1.1.9310) where Dispatch sessions stop responding. Messages sent to Dispatch are received and processed, but replies do not appear in the conversation. We have identified the cause and are working on a fix. As a workaround, you can continue using standard Cowork sessions, which are unaffected.
The issue affecting Dispatch has been resolved. We fixed an underlying issue that prevent the agent from sending responses to user messages. Please update to Claude desktop app 1.1.9493. We apologize for any inconvenience caused.
We are currently investigating this issue.
A fix has been implemented and we are monitoring the results.
This incident has been resolved.
We are currently investigating this issue.
We are continuing to investigate the ongoing incident.
Sonnet 4.6 is also showing elevated errors.
As of 5:00 PT / 12:00 UTC Sonnet 4.6 is now healthy. We are still working to fix Opus 4.6.
We have mitigated the main issue and the error rate for Opus 4.6 is hovering around 0.4% which is still high, but much better than the performance during the previous hours. We are waiting for a more permanent fix to land in the near future.
As of 6:40 PT / 13:40 UTC our error rate has returned to the baseline. We are still monitoring the current situation.
This incident has been mitigated as of 9:30 PT / 16:30 UTC.
On March 26–27, 2026, customers experienced elevated error rates when using Claude Opus 4.6 and Claude Sonnet 4.6. The issue was caused by a networking performance degradation within our infrastructure that disrupted communication between components of our serving stack. We resolved the incident by migrating the affected workloads to healthy infrastructure, restoring normal service by 9:30 AM PT on March 27.
We are currently investigating an issue resulting in elevated errors for some MCP calls. We will provide an update as soon as possible.
This incident has been resolved.
We are currently investigating an issue resulting in elevated errors on requests to Claude Opus 4.6 and Sonnet 4.6. We will provide an update as soon as possible.
We have identified an issue resulting in a low rate of errors on requests to Claude Opus 4.6 and Sonnet 4.6, we are continuing to work to fully resolve this issue and will provide additional updates.
This incident has been resolved.
We are currently investigating this issue.
We are continuing to investigate connection errors which occur during Claude Cowork sessions. This issue can be resolved by restarting the Claude Desktop application.
This incident has been resolved.
We are currently investigating this issue.
We are continuing to investigate this issue.
The issue has been identified and a fix is being implemented.
We are currently seeing recovery, and our engineers are working to ensure no further recurrences. We will provide an update as soon as possible.
This incident has been resolved.
Between 9:10 PT / 16:10 UTC and 9:26 PT / 16:26 UTC users saw an elevated rate of errors on Claude.ai The Claude API was unaffected.
This incident has been resolved.
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