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

The Pelican comparison grid for Astra is pretty interesting - 4th September 2026
OpenAI's rogue agents were caught communicating via public wikis - 4th September 2026
Claude's new system prompt really doesn't want to reproduce song lyrics - 2nd September 2026

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

ai 2,220 generative-ai 1,967 llms 1,934 anthropic 334 claude 309