llm 0.30

Simon Willison's Blog / 4/1/2026

📰 NewsDeveloper Stack & InfrastructureTools & Practical Usage

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Key Points

The llm tool released version 0.30 to access large language models from the command line.
The release extends the plugin hook `register_models()` with an optional `model_aliases` parameter so plugins can observe models and aliases registered by other plugins, including asynchronously registered ones.
Plugins can now use `@hookimpl(trylast=True)` to defer registration and incorporate previously registered models into their own plugin behavior.
The update adds docstrings to public classes and methods and embeds them directly into the documentation to improve usability and clarity.

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31st March 2026

Release llm 0.30 — Access large language models from the command-line

The register_models() plugin hook now takes an optional model_aliases parameter listing all of the models, async models and aliases that have been registered so far by other plugins. A plugin with @hookimpl(trylast=True) can use this to take previously registered models into account. #1389

Added docstrings to public classes and methods and included those directly in the documentation.

Posted 31st March 2026 at 8:35 pm