What happened
On September 22, 2026, Anthropic experienced a major Claude AI outage. It affected users in several regions.
- Downdetector registered more than 1,600 reports of issues.
- Anthropic did not disclose a confirmed technical cause of the incident.
The number of reports on Downdetector shows the number of registered reports, not the exact number of affected users.

Which services were affected by the outage
Users reported problems with Claude, Claude Code, logging in, and accessing services. The outage also affected the API and developers.
When assessing the scope of the incident, it is important to distinguish between issues with the interface, authentication, and API: reports concerned each of these areas.
What is known about the cause and recovery
Anthropic did not name a confirmed technical cause. After the outage, the company restored its services.
At the time of publication, Claude.ai, Claude Code, the API, Console, and other listed services were operating normally. This status describes the time of publication and does not guarantee availability later.



