Simon Willison’s Weblog

9th October 2023

Claude was trained on data up until December 2022, but may know some events into early 2023.

— How up-to-date is Claude's training data?

Posted 9th October 2023 at 1:25 am

Recent articles

Claude Opus 4.8: "a modest but tangible improvement" - 28th May 2026
I think Anthropic and OpenAI have found product-market fit - 27th May 2026
Notes on Pope Leo XIV's encyclical on AI - 25th May 2026

This is a quotation collected by Simon Willison, posted on 9th October 2023.

ai 2,048 generative-ai 1,809 llms 1,776 anthropic 289 claude 278