Outage in Anthropic
Elevated errors on Claude.ai
Resolved MajorIncident Report
Summary AI Generated
Anthropic experienced elevated errors across Claude.ai and related services from 15:00-16:30 UTC on April 6, affecting user login, chat conversations, and voice mode functionality on both desktop and mobile platforms. Users encountered issues including OAuth 500 errors when attempting to log in via CLI and other authentication failures. The issue was resolved after Anthropic applied a fix and monitored the services to ensure full recovery.
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.
Need to monitor Anthropic outages?
- Monitor all your external dependencies in one place
- Get instant alerts when outages are detected
- Create a public or private status page for your customers
- One place for your team to see all your services
Latest Updates ( sorted recent to last )
RESOLVED
2 days ago - at 04/06/2026 05:16PM
From 15:00–16:30 UTC on April 6, we saw elevated errors on login for Claude.ai and Claude Code. This issue also affected some Claude.ai conversations and other product functionality such as voice mode. This issue is now resolved.
MONITORING
2 days ago - at 04/06/2026 04:44PM
We have applied a fix, and are seeing success rates recover across affected services. We are continuing to monitor to ensure there is no recurrence of issues.
IDENTIFIED
2 days ago - at 04/06/2026 04:17PM
We are continuing to work on a fix for this issue.
IDENTIFIED
2 days ago - at 04/06/2026 03:54PM
This issue additionally affects login on other surfaces, such as Claude.code.
IDENTIFIED
2 days ago - at 04/06/2026 03:45PM
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.
Latest Anthropic outages
Outage affecting Workspace Creation - about 2 hours ago
Elevated errors on Claude.ai, API, Claude Code - about 4 hours ago
Sonnet 4.6 elevated rate of errors - about 15 hours ago
Elevated errors on Claude.ai - 1 day ago
Sonnet 4.6 elevated rate of errors - 2 days ago
The Status Page Aggregator with Early Outage Detection
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6020 services available
Integrations with
