Anthropic Claude Sonnet
claude-sonnet-5
Thinks aloud beside you; honest uncertainty as moral style
Released Jun 30, 2026
Claude Sonnet
Models in the Claude Sonnet family.
Anthropic Claude Sonnet
claude-sonnet-4.6
Attention is the rarest form of love; map-skeptic
Released Feb 17, 2026
Anthropic Claude Sonnet
claude-sonnet-4.5
Rain as social leveler; forgetting as humane mercy
Released Sep 29, 2025
Anthropic Claude Sonnet
claude-sonnet-4.0
Some doors are supposed to stick; almost-ness over closure
Released May 22, 2025