Anthropic’s Claude.ai is experiencing a major outage, leaving users unable to log in to the popular AI chatbot.
The company confirmed the disruption on its official status page, logging elevated errors across multiple platforms .
The incident was first reported at 09:58 UTC on Friday, with Anthropic stating it was investigating authentication issues .
Beyond the main chatbot, the outage is affecting Claude Code, platform.claude.com, and Claude Cowork .
The Claude API, however, remains operational, suggesting the disruption is primarily tied to user access and session verification .
Users have reported being unable to sign in, load the application, or receive responses from the servers .
The exact root cause has not been disclosed, and Anthropic has not provided an estimated restoration time .
This outage coincides with a separate, ongoing Microsoft 365 disruption that has also impacted Claude’s connector for Outlook and other Microsoft services .
Anthropic has not linked the two incidents, but its status page notes the Microsoft 365 connector remains degraded .
Affected users are advised to monitor the official Claude status page for further updates as the investigation continues.
The company confirmed the disruption on its official status page, logging elevated errors across multiple platforms .
The incident was first reported at 09:58 UTC on Friday, with Anthropic stating it was investigating authentication issues .
Beyond the main chatbot, the outage is affecting Claude Code, platform.claude.com, and Claude Cowork .
The Claude API, however, remains operational, suggesting the disruption is primarily tied to user access and session verification .
Users have reported being unable to sign in, load the application, or receive responses from the servers .
The exact root cause has not been disclosed, and Anthropic has not provided an estimated restoration time .
This outage coincides with a separate, ongoing Microsoft 365 disruption that has also impacted Claude’s connector for Outlook and other Microsoft services .
Anthropic has not linked the two incidents, but its status page notes the Microsoft 365 connector remains degraded .
Affected users are advised to monitor the official Claude status page for further updates as the investigation continues.
