Elevated errors across many models

highAnthropicClaude APIJul 30, 2026 05:57Duration: 4h 51m

api

API Issue

Summary

This incident has been resolved.

Impact

major

Timeline

Jul 30, 2026 05:57

[investigating] We are currently investigating this issue.

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+29m

Jul 30, 2026 06:26

[identified] All models except Opus 5 have recovered. We're working to recover Opus 5 as well.

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+1h 7m

Jul 30, 2026 07:33

[identified] As of 7:32 UTC / 0:32 PT, Opus 5 errors are back to baseline but we're seeing again Sonnet 5's errors up.

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+33m

Jul 30, 2026 08:06

[identified] As of 8:05 UTC / 1:05 PT, Sonnet 5 errors are back to baseline, but we're seeing an increased error rate on Fable 5.

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+27m

Jul 30, 2026 08:33

[identified] As of 01:33 PT / 08:33 UTC we are back to errors across all models.

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+1h 30m

Jul 30, 2026 10:03

[monitoring] As of 2:58 PT / 9:58 UTC the errors are back to baseline.

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+19m

Jul 30, 2026 10:23

[monitoring] We are also investigating issues with Opus 4.7 and Opus 4.5.

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+26m

Jul 30, 2026 10:48

[resolved] This incident has been resolved.

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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.