Claude 4 System Card(simonwillison.net)

638 points by pvg 1 year ago | 237 comments

Simon Willison's blog post highlighting notable details from Anthropic's 120-page system card for Claude Opus 4 and Claude Sonnet 4.

Nanochat(simonwillison.net)

26 points by bilsbie 1 year ago | 4 comments

The ChatGPT/Codex app bundles a full copy of LibreOffice(simonwillison.net)

441 points by timpera 1 month ago | 206 comments

Short blog note by Simon Willison finding that the ChatGPT/Codex desktop app ships a 1.7GB runtime with Python, Node.js, Poppler, git and LibreOffice for skills.

Serving 200M requests per day with a CGI-bin(simonwillison.net)

298 points by mustache_kimono 1 year ago | 267 comments

Understanding GPT tokenizers(simonwillison.net)

380 points by simonw 3 years ago | 110 comments

Simon Willison blog post explaining how GPT tokenizers convert text to integer tokens, with an Observable notebook tool for encoding, decoding and searching tokens.

SmolLM2(simonwillison.net)

86 points by edward 2 years ago | 20 comments