Claude Sonnet 4.5(anthropic.com)
1503 points by adocomplete | 746 comments
Anthropic's announcement post introducing Claude Sonnet 4.5, its new AI model, dated September 29, 2025.
First screen, captured .
Looks similar
Claude Opus 4.7(anthropic.com)
1922 points by meetpateltech | 1403 comments
Anthropic's announcement post introducing Claude Opus 4.7, a new version of its Claude AI model, dated April 16, 2026.
Claude Opus 4.8(anthropic.com)
1708 points by craigmart | 1334 comments
Anthropic's announcement post introducing the Claude Opus 4.8 AI model, dated May 28, 2026.
Claude Haiku 4.5(anthropic.com)
689 points by adocomplete | 273 comments
Anthropic's announcement post introducing Claude Haiku 4.5, a new small model in its Claude family, dated October 15, 2025.
Claude Sonnet 5(anthropic.com)
1219 points by marinesebastian | 751 comments
Anthropic's announcement page introducing the Claude Sonnet 5 AI model, dated June 30, 2026.
Claude Opus 4.6(anthropic.com)
2277 points by HellsMaddy | 982 comments
Anthropic's announcement post introducing Claude Opus 4.6, a new version of its flagship AI model, dated February 5, 2026.