Anthropic Outage History

Anthropic experienced a major service incident where Claude for Government was not loading properly. The issue affected government users' ability to access the Claude platform for 32 minutes. The incident was resolved after investigation by Anthropic's team.

Anthropic experienced elevated errors on Claude Opus 4.6 that affected claude.ai, console.anthropic.com, and api.anthropic.com for 25 minutes. The company investigated the issue, implemented a fix, and monitored the results before confirming full resolution.

Anthropic experienced elevated error rates across multiple models for 35 minutes, with users encountering 500 internal server errors when accessing the API. The api.anthropic.com service was affected, preventing normal API functionality. The incident was resolved after investigation and monitoring.

The Claude Desktop app failed to start for some Windows users and macOS users on older releases due to an identified technical issue. The problem affected the claude.ai service and prevented affected users from launching the desktop application entirely. Anthropic resolved the issue by releasing version 1.1.4328 with a fix, requiring users to download the updated version from the official website.

Anthropic experienced elevated errors affecting Claude Sonnet 4.6 model across claude.ai and console.anthropic.com for approximately 1.1 hours. The incident was initially misidentified as affecting Sonnet 4.5 before being corrected to Sonnet 4.6. Errors returned to baseline levels as of 5:10 PT / 13:10 UTC.

Anthropic experienced elevated errors on Claude Sonnet 4.6 that affected both claude.ai and api.anthropic.com for 19 minutes. The service disruption was resolved when error rates returned to baseline levels at 23:27 PT / 7:27 UTC on February 24, 2026.

Anthropic experienced elevated errors on Claude Haiku 4.5 that affected claude.ai, console.anthropic.com, and api.anthropic.com for 1.9 hours. The issue was identified and a fix was implemented, with the incident fully resolved after monitoring confirmed the solution was effective.

Anthropic experienced elevated error rates on Claude Sonnet 4.5 for 17 minutes, affecting both claude.ai and api.anthropic.com services. The issue was identified and a fix was implemented, with error rates returning to baseline levels by 03:26 PT.

Anthropic experienced elevated error rates on Claude Opus 4.6 for 2 hours, affecting claude.ai, console.anthropic.com, and api.anthropic.com. The issue was identified and a fix was implemented, with error rates returning to baseline levels by 01:30 PT / 09:30 UTC.