Anthropic's status page confirmed an ongoing incident causing elevated errors across claude.ai, the Claude API, Claude Code, and Claude Cowork, naming Opus 5, Opus 4.8, Opus 4.6, and both Fable 5 versions as affected while Sonnet and Haiku stayed off the list.
Read the full story: Claude Suffers Multi-Model Errors Across API and Claude.ai →
Transcript
Claude just had a rough afternoon. Anthropic's status page confirmed elevated errors hitting claude dot A-I, the API, Claude Code, and Claude Cowork, all starting around one twenty six U-T-C. Twenty minutes later they said they'd found the cause. But not fixed it. The company named five model versions as affected: Opus 5, Opus four point eight, Opus four point six, and both versions of Fable. Here's the part most coverage will skip. Sonnet and Haiku are not on that list. If your workflow can swap models, that's your move right now. No error rate published, no technical explanation yet, just a status page saying they're working on it. For teams building production tools on one single provider, this is exactly the kind of morning that makes the case for a backup.