Elevated errors for Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other models

highAnthropicClaude APIJul 25, 2026 21:34Duration: 34m

api

API Issue

Summary

This incident has been resolved.

Impact

major

Timeline

Jul 25, 2026 21:34

[investigating] We are investigating elevated errors on requests to Claude Fable 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.

via statuspage

+34m

Jul 25, 2026 22:08

[resolved] This incident has been resolved.

via statuspage

Lessons Learned

⚠Anthropic has experienced 196 incidents in the past year. This frequency suggests systemic reliability challenges that may warrant additional monitoring.

📊Incidents related to api have occurred 832 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: API Issue. Consider implementing preventive measures specific to this failure category.