Repeated service disruptions and elevated error rates on Anthropic's Claude AI, particularly affecting free-tier users, caused by underlying technical instability in Claude Opus 4.6 and related systems, have led to ongoing outages and degraded service availability.

CURRENT STATE

As of March 17-18, 2026, Anthropic's Claude AI experienced its third outage in March, primarily impacting free-tier users with error 500 and login failures. Anthropic acknowledged the issues, implemented fixes, and is monitoring elevated errors on Claude Opus 4.6, while incentivizing off-peak usage to mitigate load.

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