Anthropic’s Claude Opus 4.8 has been experiencing elevated error rates affecting requests across the platform, with the company’s status page confirming an active investigation. The problems have been building since mid-June 2026, hitting the API, Claude Code, Console, and claude.ai. The elevated error rates on Opus 4.8 began appearing around June 17, with a documented incident running from approximately 9:59pm PT to 10:41pm PT. Prior outages involving Opus 4.8 have typically lasted between 1 to 1.5 hours each. Similar elevated-error events hit the predecessor model, Opus 4.7, on May 22 and May 25. By late June 2026, multiple Opus and Sonnet models were experiencing elevated error rates. Claude Opus 4.8 launched on May 28, 2026, scoring 69.2% on the SWE-bench Pro, compared to 64.3% for Opus 4.7. Pricing stayed flat at $5 per million input tokens and $25 per million output tokens. Anthropic has confirmed investigations through its status page, but detailed public responses or root-cause analyses have been absent.