Claude Opus 5: Critical Chain Update — Fable 5 Is Now Hard to Justify
Claude Opus 5 landed July 24, 2026 — and it makes the Fable 5 case harder to argue than any benchmarking post has managed so far. Anthropic’s fourth Claude 5 model release in under two months ships at $5 per million input tokens and $25 per million output — identical to Opus 4.8, and exactly … Read more