minorresolved

Anthropic (Claude) outage on 2026-08-04: Elevated errors on Claude Sonnet 5

Started: August 4, 2026 at 11:27 AM UTC
Resolved: August 4, 2026 at 11:52 AM UTC
Duration: 25m

Latest update from Anthropic (Claude)

August 4, 2026 at 11:52 AM UTC

This incident has been resolved.

Anthropic (Claude)'s own report for this incident

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Other Anthropic (Claude) incidents

minorAugust 4, 2026 at 06:16 AM UTC
Elevated errors on Claude Sonnet 5
Resolved in 39m
minorAugust 3, 2026 at 03:13 PM UTC
Degraded performance on Claude Sonnet 5
Resolved in 15m
minorAugust 3, 2026 at 12:52 PM UTC
Error rates across multiple models
Resolved in 1h 24m
minorJuly 31, 2026 at 06:18 AM UTC
Degraded performance on Claude Sonnet 5
Resolved in 47m
minorJuly 30, 2026 at 01:43 PM UTC
Degraded performance on Claude Opus 4.8
Resolved in 41m

See the full Anthropic (Claude) outage history

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