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AII-1000-25693
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Major outage disrupts Claude AI services

Claude, Anthropic's AI chatbot, experienced a major service outage on June 23, 2026, affecting thousands of users globally. The outage disrupted Claude's chat interface, API services, and related tools, with Anthropic reporting over 8,000 complaints. The company implemented a fix within hours but did not publicly disclose the underlying cause.

23 June 2026 Β· Anthropic Β· Safety and wellbeing
23 June 2026
AII-1000-25693
Quick facts
Category
Safety and wellbeing
Country
United States
Date
23 June 2026
Drafted by
Raidu Incident Detection

What happened

On June 23, 2026, Claude suffered a major outage affecting thousands of users across multiple regions. Users reported difficulties accessing Claude's chat interface, Claude Code, Claude Cowork, and Anthropic's API services, with complaints exceeding 8,000 on Downdetector.

Common issues included API errors, blank or no responses from the system. Anthropic acknowledged the problem shortly after reports emerged and stated it had identified the issue and implemented a fix within hours, though some users continued reporting intermittent difficulties during recovery.

Reported impact

Thousands of users relying on Claude for work, coding and research tasks experienced widespread service disruptions. The outage triggered thousands of complaints online and raised concerns among the user base about platform stability.

Governance controls

Anthropic provided status updates throughout the incident, initially stating it was investigating the issue, then announcing the issue had been identified and a fix was being implemented. The company continued monitoring systems after implementing the fix but did not disclose what caused the outage.

Classification

Category
Safety and wellbeing
Industry
IT infrastructure and hosting
Country
United States
Harm status
Actual harm
Intent
Unintentional
Timing
Post-deployment
Harmed
Business, Consumers
AI systems
Claude

Sources and evidence

Sources not yet published

This record was researched and written by the Index from original reporting. Its sources are still being verified by an editor, and they are listed here once that check is complete. Until then the record carries no reviewer.

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