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Anthropic experienced widespread disruptions on Monday morning, with thousands of users reporting problems accessing Claude services.

The outage seems to be affecting Claude.ai as well as Claude Code, though the company said the Claude API is working as intended. Most users experience the error when attempting to log in, as in the screenshot below.

“The issues we are seeing are to Claude.ai and with the login/logout paths,” the company’s status page reads. Anthropic has not yet detailed what caused the outage, though the company said it has identified an issue and is implementing a fix.

The disruption follows an influx of users to Claude, which seems to have benefited from the attention around the company’s fraught negotiations with the Pentagon. The chatbot app rose to the top of the App Store charts this weekend, overtaking archrival ChatGPT, after spending a long time below the top 20.

U.S. President Donald Trump last week told federal agencies to stop using Anthropic products after a dispute over safeguards preventing the Department of Defense from using its AI models for mass domestic surveillance or fully autonomous weapons. Secretary of Defense Pete Hegseth said he would designate the company as a supply-chain threat, though Anthropic says it hasn’t yet received any formal notices.