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

Battle Drones - a vibe coded RTS with audio-based multiplayer - 20th October 2026
Hello Python 3.15, goodbye 3.10, and now I can use 3.11 - 12th October 2026
A new feature for my blog, built using my voice - 9th October 2026
Claude Haiku 5.5 - 7th October 2026

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

ai 2,289 generative-ai 2,030 llms 1,996 anthropic 350 claude 320