Claude Opus is Anthropic's flagship intelligence tier inside the Claude family, positioned above Sonnet and Haiku. Covers Opus dot-releases through the 4.x generation (4.0, 4.1, 4.5, 4.6, 4.7, 4.8 and successors), capabilities, pricing, and the workflows Opus is the right choice for.
Anthropic has disabled Claude Fable 5 and Claude Mythos 5 for all customers, complying with a US government export-control directive that arrived…
Update (2026-06-13): On June 12, 2026, Anthropic disabled Claude Fable 5 and Claude Mythos 5 for all customers after the US government…
Claude Opus 4.7 launched on April 16, 2026, and Claude Opus 4.8 launched on May 28, 2026, exactly 41 days later. That…
Update, July 26, 2026: Opus 4.8 is no longer the current Opus model. Anthropic released Claude Opus 5 on July 24, 2026,…