Claude returns elevated error rates across multiple models

Category: Outage
Status: confirmed
Sources: Claude status incident, HN
Summary: Anthropic logged elevated error rates across Opus 4.8, 4.7, and 4.6, Sonnet 4.6, and Haiku 4.5, affecting claude.ai, the Claude API, Claude Code, and Claude Cowork. Investigation began 2026-06-22 00:37 UTC. Models recovered in sequence (Opus 4.8 at 01:16, Haiku 4.5 at 01:33, Opus 4.7 at 01:56 UTC) and the incident was marked resolved at 02:06 UTC, about 1.5 hours. No root cause published.
Why it matters: A simultaneous multi-model error spike disrupts coding agents and applications built on the Claude API during the window.
Follow-up: Watch for an Anthropic root-cause note and any recurrence.