Products and plans where this model is currently available.
Claude Mythos Preview
anthropic/claude-mythos-preview
07 Apr 2026
Claude Sonnet 4.6
anthropic/claude-sonnet-4.6
17 Feb 2026
Claude Opus 4.6
anthropic/claude-opus-4.6
05 Feb 2026
Claude Opus 4.5
anthropic/claude-opus-4.5
24 Nov 2025
Claude Haiku 4.5
anthropic/claude-haiku-4.5
15 Oct 2025
Claude Sonnet 4.5
anthropic/claude-sonnet-4.5
29 Sept 2025
Claude Opus 4.1
anthropic/claude-opus-4.1
05 Aug 2025
Claude Sonnet 4
anthropic/claude-sonnet-4
21 May 2025
Claude Opus 4
anthropic/claude-opus-4
