Opus 5 error rates up. If production-bound, consider fallback to another model
Elevated errors on Claude Opus 5 under investigation
Original: Elevated errors on Claude Opus 5
Importance: 本番環境での API エラー増加は既存ユーザーのサービス可用性に即座に影響する
Summary
Anthropic reported elevated error rates on Claude Opus 5 on Jul 27 and is investigating the issue. Users may experience increased errors when making API calls or using Claude. Root cause and estimated recovery time have not yet been disclosed.
Key Points
- Claude Opus 5 experiencing elevated error rates
- Investigation started Jul 27 08:16 UTC
- Root cause and ETA not yet disclosed
- API/SDK requests likely affected
View developer notes (APIs, breaking changes, migration)
Claude Opus 5 model is experiencing elevated API error rates detected on the official status page. Users calling the Messages API, Batch API, or SDK (Python/JavaScript) may see increased HTTP errors on Opus 5 inference requests. The incident is in "Investigating" phase; consider switching to Opus 4.1 as a temporary fallback until resolution.
Source: https://status.claude.com/incidents/lhqp09kxq7pb
Outlet: Anthropic Status
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