Looks similar
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 Opus 4.7 Model Card(anthropic.com)
153 points by adocomplete | 75 comments
Fable 5.1 System Card(anthropic.com)
4 points by alvis | 0 comments

![Screenshot of csl.sri.com: The foundations of a provably secure operating system (PSOS) (1979) [pdf]](https://hn.urlbox.com/shots/renders/2026/5/18/93a37368-b0bc-4c85-aece-75051da1c5a6.jpg)




