System Card: Claude Fable 5 and Claude Mythos 5 [pdf](www-cdn.anthropic.com)

203 points by scrlk 4 months ago | 83 comments

Claude Sonnet 4.5 System Card [pdf](assets.anthropic.com)

20 points by synthwave 1 year ago | 1 comments

Anthropic Risk August 2026 [pdf](www-cdn.anthropic.com)

48 points by artninja1988 2 months ago | 42 comments

Hypermedia Systems(hypermedia.systems)

224 points by dsego 2 years ago | 81 comments

Show HN: Game demo made with my homemade game engine(reprobate.site)

87 points by delduca 1 year ago | 48 comments

Opusmodus: Common Lisp Music Composition System(opusmodus.com)

156 points by zetalyrae 3 years ago | 53 comments

Claude Opus 4.8(anthropic.com)

1708 points by craigmart 5 months ago | 1334 comments

Anthropic's announcement post introducing the Claude Opus 4.8 AI model, dated May 28, 2026.

Claude Sonnet 4.6(anthropic.com)

1268 points by adocomplete 8 months ago | 1129 comments

Anthropic's announcement page for the Claude Sonnet 4.6 model, with a linked system card and launch video.

Claude now has access to a server-side container environment(anthropic.com)

628 points by meetpateltech 1 year ago | 326 comments

Anthropic product announcement that Claude can now create and edit files such as spreadsheets and documents using a server-side container environment.

Claude 2(anthropic.com)

383 points by technics256 3 years ago | 232 comments

Anthropic's July 11, 2023 announcement introducing Claude 2, its new large language model and chatbot.

LLMs are making formal software verification feasible at a much larger scale(anthropic.com)

429 points by johnbender 3 days ago | 265 comments

Anthropic research post describing how Claude produced formal proofs of crash-freedom for RISC-V binaries of 123 OSS-Fuzz open-source libraries, finding bugs along the way.

Claude Opus 4.6(anthropic.com)

2277 points by HellsMaddy 8 months ago | 982 comments

Anthropic's announcement post introducing Claude Opus 4.6, a new version of its flagship AI model, dated February 5, 2026.