Outages

Claude API, Code, and apps hit elevated error rates for about two hours

2026-06-17 digest confirmed

  • Category: Outage
  • Status: confirmed
  • Sources: Claude status, discussion
  • Summary: Anthropic reported elevated errors across many models on 2026-06-16. A first phase from 10:23 to 11:00 PT affected all Sonnet and Opus models at roughly a 10 percent error rate; a second phase from 11:00 to 12:20 PT affected Opus 4.8 and Haiku 4.5. Affected surfaces were claude.ai, the Claude API, Claude Code, and Claude Cowork. A fix was implemented and the incident was resolved by 12:20 PT (19:20 UTC). No root cause was published.
  • Comments: GitHub Status logged a related resolved incident on 2026-06-16 for degraded availability of the Opus 4.8 model in Copilot products, attributed to an upstream model-provider issue.
  • Why it matters: Coding agents and applications that route through Claude saw failed requests during the window, and the GitHub Copilot degradation shows the blast radius extending to downstream products.

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