We’ve suspended access to Claude Mythos 5 and Claude Fable 5

criticalAnthropicClaude APIJun 13, 2026 00:50Duration: 450h 36m

authenticationdeployment

Deployment FailureAuthentication Issue

Summary

Learn more here: https://anthropic.com/news/redeploying-fable-5

Impact

critical

Timeline

Jun 13, 2026 00:50

[monitoring] Learn more here: https://anthropic.com/news/fable-mythos-access

via statuspage

+450h 36m

Jul 1, 2026 19:26

[resolved] Learn more here: https://anthropic.com/news/redeploying-fable-5

via statuspage

Lessons Learned

⚠Anthropic has experienced 168 incidents in the past year. This frequency suggests systemic reliability challenges that may warrant additional monitoring.

📊Incidents related to authentication, deployment have occurred 203 times across all providers in the past year. This is one of the most common failure categories in cloud infrastructure.

💡This incident is categorized as: Deployment Failure, Authentication Issue. Consider implementing preventive measures specific to this failure category.