Simon Willison's Newsletter

Simon Willison's Newsletter is the email edition of Simon Willison's weblog, delivering a working open-source developer's first-hand accounts of testing new AI models, LLMs, and coding tools as they ship, alongside Python and software-engineering writing. It's aimed at developers and technical practitioners deciding which AI tools and models are actually worth using. Its main differentiator is independence and technical credibility: Willison isn't funded by the AI labs he covers, and his takes come from real hands-on experimentation rather than marketing.