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

Notes on the xAI/Anthropic data center deal - 7th May 2026
Live blog: Code w/ Claude 2026 - 6th May 2026
Vibe coding and agentic engineering are getting closer than I'd like - 6th May 2026

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

ai 2018 generative-ai 1786 llms 1752 anthropic 282 claude 275