Simon Willison’s Weblog

Happy Birthday April! (via) This is really sweet :)

Posted 5th April 2004 at 1:51 am

Recent articles

GPT-4.1: Three new million token input models from OpenAI, including their cheapest model yet - 14th April 2025
CaMeL offers a promising new direction for mitigating prompt injection attacks - 11th April 2025
Model Context Protocol has prompt injection security problems - 9th April 2025