Shared from twixb · simonwillison.net

LLM 0.32a0 is a major backwards-compatible refactor

simonwillison.net·Apr 29, 2026

Simon Willison announced the release of LLM 0.32a0, a significant alpha update to his Python library for accessing large language models (LLMs), which introduces a more flexible input and output system that supports multi-modal data types and conversational prompts as sequences of messages. This update aims to enhance the library's functionality by allowing for diverse input types and streaming responses, reflecting the evolving capabilities of modern LLMs.

The most valuable insight for you is the introduction of LLM 0.32a0's new mechanisms for handling conversations and streaming results. This alpha release allows model inputs to be structured as a sequence of messages, enabling easier emulation of chat completions APIs, and supports streaming mixed content types, which is crucial for handling complex outputs from modern AI models. This advancement can significantly enhance your AI productivity and workflow, especially if you're integrating or building upon these capabilities in your projects.

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