🟢 Operational
Degraded performance for multiple models
Resolved
- Started
- 2026-08-18 19:01 UTC
34 days ago - Last update
- 2026-08-18 19:01 UTC
34 days ago - Duration
- 0s
Timeline
-
18 Aug · 19:01 UTC
🟡 Resolved
atom
Aug 18, 19:01 UTC
Resolved - The issue affecting Claude Opus 5 has been resolved. Impact occurred from 16:11 to 18:23 UTC.
Aug 18, 18:26 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Aug 18, 17:12 UTC
Update - We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.
Aug 18, 16:20 UTC
Update - We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.
Aug 18, 16:20 UTC
Investigating - We are investigating reports of degraded performance affecting multiple models. We will provide an update as soon as possible. -
18 Aug · 19:01 UTC
🟡 Resolved
atom
Aug 18, 19:01 UTC
Resolved - The issue affecting Claude Opus 5 has been resolved. Impact occurred from 16:11 to 18:23 UTC.
Aug 18, 18:26 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Aug 18, 17:12 UTC
Update - We are investigating elevated errors on requests to Claude Opus 5. We will provide an update as soon as possible.
Aug 18, 16:20 UTC
Update - We are investigating elevated errors on requests to Claude Mythos 5, Claude Fable 5, Claude Opus 5, Claude Sonnet 5, Claude Haiku 4.5, and other Claude models. We will provide an update as soon as possible.
Aug 18, 16:20 UTC
Investigating - We are investigating reports of degraded performance affecting multiple models. We will provide an update as soon as possible.
Source
Official Anthropic (Claude) status — view original incident ↗
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