Simon Willison’s Weblog

10th July 2023

TIL Quickly testing code in a different Python version using pyenv — I had [a bug](https://github.com/simonw/llm/issues/82#issuecomment-1629735729) that was only showing up in CI against Python 3.8.

Posted 10th July 2023 at 9:21 pm

Recent articles

GPT-5.4 mini and GPT-5.4 nano, which can describe 76,000 photos for $52 - 17th March 2026
My fireside chat about agentic engineering at the Pragmatic Summit - 14th March 2026
Perhaps not Boring Technology after all - 9th March 2026

This is a beat by Simon Willison, posted on 10th July 2023.

Monthly briefing

Sponsor me for $10/month and get a curated email digest of the month's most important LLM developments.

Pay me to send you less!

Sponsor & subscribe