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Claude AI Suffers Major Outage, Reliability Questioned

28 Apr

Summary

Claude AI experienced a major outage on April 20, impacting multiple platforms.
Over 6,500 users reported issues during the disruption, raising reliability concerns.
The outage was attributed to authentication failures, affecting Claude.ai and its API.

Claude AI Suffers Major Outage, Reliability Questioned

Claude AI encountered a substantial outage on April 20, beginning at 14:53 UTC, which marked the second significant disruption within a three-day period. This incident prevented access across various platforms and workflows, including Claude Chat, Claude Code, and the mobile application.

Downdetector registered over 6,500 user-reported issues during this outage. Anthropic classified the event as a Partial Outage, primarily caused by authentication failures impacting Claude.ai, its API, and Claude Code.

While the Claude API showed recovery by 15:20 UTC and fully recovered by 16:01 UTC, access problems for the main Claude.ai interface persisted longer. This repetition of failures, especially during accelerated enterprise adoption, underscores the critical need for Anthropic to address reliability concerns and potentially publish a postmortem detailing the authentication issues and planned improvements.

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