Outage report · Partial outage
Anthropic API outage on Aug 24, 2026
Elevated errors for multiple models
What happened
Anthropic API reported a partial outage starting Aug 24, 2026, 05:06 UTC, affecting claude.ai, Claude API (api.anthropic.com), Claude Code, Claude Cowork. It was marked resolved at Aug 24, 2026, 08:30 UTC.
- The incident lasted 3h 24m from first report to resolution.
- It was the 2nd longest of 6 significant outages Anthropic API reported in the 12 months up to it.
- Anthropic API had reported 4 other partial or major outages in the 90 days before it.
- 8 other vendors we track reported a significant incident within 12 hours of it.
Latest update from Anthropic API
This issue has been resolved. From 9:50pm PT / 04:50 UTC through 00:36am PT / 07:36 UTC, users saw elevated errors on requests to Claude models, including Claude Opus 5 and Fable 5.
What our independent monitoring saw
Our independent monitoring of Anthropic API started after this incident, so this report is based on Anthropic API's status page.
Other outages around the same time
Significant incidents other vendors reported within 12 hours of this one.
Anthropic API's overall reliability
Anthropic API has a reliability score of 36.8/100, with 97.53% effective uptime and 36 incidents over the last 90 days.
Visit Anthropic API ↗Full Anthropic API reliability report and live status → · Most reliable Anthropic API alternatives →
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