Claude goes down twice for 4.5 hours in 1 day

Anthropic's Claude went down twice on the 13th of November 2026, its status page showed, StatusStack reported. The two outages lasted about 4.5 hours in total.

Claude is Anthropic's AI assistant. Both problems hit the claude.ai website and Claude Code, its coding tool.

The first outage

The first began at 11:58 Athens time and was resolved at 13:58, StatusStack reported. It blocked logins to claude.ai, Claude Code and the developer console.

The second outage

A second problem began at 15:09 Athens time and ended at 17:38. This time the Claude API, the service other apps use, also failed.

Connectors, Claude Meetings and Claude Managed Agents were slow, Anthropic said on its status page. Some scheduled tasks ran more than 2 hours late, and some were skipped.

Users noticed

A Hacker News thread on the errors drew more than 480 points. A second thread, titled Claude Is Down, drew 197 points.

Below we break down the time

Two hours plus 2 hours and 29 minutes makes 4 hours and 29 minutes, by our arithmetic. That is close to one fifth of the day.

What is confirmed and what is not

Anthropic has not published a cause, StatusStack said. After the second fix, claude.ai still showed slower service for a time.

Key facts

Claude had two outages on the 13th of November 2026.

They lasted about 4.5 hours in total.

The first blocked logins, and the second also hit the Claude API.

Anthropic has not published a cause.