llm 0.31
Simon Willison ships llm 0.31—the open-source CLI tool that's become essential infrastructure for AI builders.

Why it matters
A mature release of a widely-used open-source tool for developers working with LLMs. This reflects the maturing of the LLM application layer and practical tooling that enterprises and builders depend on, even as it's not a headline-grabbing capability advance.
The key facts
8 to knowllm version 0.31 released
Published by Simon Willison on simonwillison.net
Release date: April 24, 2026
llm is an open-source CLI for working with large language models
Incremental release suggests active maintenance and developer adoption
Published April 24, 2026
Tool hosted on Simon Willison's blog (simonwillison.net)
No specific feature details provided in title/metadata
Go to the source
Simon Willisonsimonwillison.net