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 .
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Claude Opus 5(anthropic.com)
64 points by meetpateltech | 7 comments
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 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 4.8(anthropic.com)
1708 points by craigmart | 1334 comments
Anthropic's announcement post introducing the Claude Opus 4.8 AI model, dated May 28, 2026.
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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.
Claude Opus 4.1(anthropic.com)
801 points by meetpateltech | 301 comments
Anthropic announcement page for Claude Opus 4.1, a new version of its Claude Opus large language model, dated August 5, 2025.
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 4.6(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.
Claude Opus 5(anthropic.com)
1715 points by alvis | 1186 comments
Anthropic announcement page for the Claude Opus 5 model, with the poster linking its system card; the captured page failed to load a PDF.
Claude 2(anthropic.com)
383 points by technics256 | 232 comments
Anthropic's July 11, 2023 announcement introducing Claude 2, its new large language model and chatbot.