Elevated errors across Fable 5

highAnthropicClaude APIJul 17, 2026 18:32Duration: 1h 11m

apiauthentication

Authentication IssueAPI Issue

Summary

This issue has been resolved, and Claude Fable 5 is available once again without usage credits, as expected.

Impact

major

Timeline

Jul 17, 2026 18:32

[investigating] We are currently investigating this issue.

via statuspage

+4m

Jul 17, 2026 18:36

[investigating] We are aware of an issue preventing users from selecting Claude Fable 5 within Claude.ai, Claude Code, and other surfaces, and are working to resolve this issue.

via statuspage

+12m

Jul 17, 2026 18:48

[monitoring] We have applied a fix to resolve the erroneous requirement for usage credits on Fable 5, and are monitoring to ensure no further issues. You may need to relaunch Claude.ai or Claude Code to restore access as expected.

via statuspage

+55m

Jul 17, 2026 19:43

[resolved] This issue has been resolved, and Claude Fable 5 is available once again without usage credits, as expected.

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 api, authentication have occurred 814 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: Authentication Issue, API Issue. Consider implementing preventive measures specific to this failure category.