Claude Opus 5.5(anthropic.com)
219 points by throwaway371647 | 149 comments
Anthropic's announcement page for the Claude Opus 5.5 model, covering introduction, performance and cost, safety, and availability.
First screen, captured .
Looks similar
Claude Opus 5.5(anthropic.com)
1764 points by km144 | 1070 comments
Anthropic's announcement page for the Claude Opus 5.5 model, with sections on introduction, performance and cost, safety, and availability.
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.
Claude Fable 5(anthropic.com)
2521 points by Philpax | 2018 comments
Anthropic announcement post introducing two new AI models, Claude Fable 5 and Claude Mythos 5, dated June 9, 2026, with a linked system card.
Claude discovers a novel enzyme system with CRISPR-like repeats(anthropic.com)
740 points by raahelb | 740 comments
Anthropic news post announcing that Claude helped discover a novel enzyme system featuring CRISPR-like repeats.
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.