Claude Sonnet 4 and Claude Opus 4 are out. Anthropic says they're both state-of-the-art for coding. Blogpost, system card.
Anthropic says they may have dangerous bio capabilities, so it's implementing its ASL-3 standard for misuse-prevention and security. Blogpost, safety case report. (RSP.)
Tweets: Anthropic, Sam Bowman, Jan Leike.
Claude 3.7 Sonnet has been retconned to Claude Sonnet 3.7 (and similarly for other models).
---
First published:
May 22nd, 2025
Source:
https://www.lesswrong.com/posts/k9wrDrvEwuReSHCKv/claude-4
Linkpost URL:
https://www.anthropic.com/news/claude-4
---
Narrated by TYPE III AUDIO.
En liten tjänst av I'm With Friends. Finns även på engelska.