The llm CLI tool version 0.32a2 has been released, adding support for OpenAI's /v1/responses endpoint to enable interleaved reasoning for GPT-5 class models.
# Release: llm 0.32a2
Source: [https://simonwillison.net/2026/May/12/llm/](https://simonwillison.net/2026/May/12/llm/)
12th May 2026
Release[llm 0\.32a2](https://github.com/simonw/llm/releases/tag/0.32a2)— Access large language models from the command\-line
A bunch of useful stuff in this[LLM](https://llm.datasette.io/)alpha, but the most important detail is this one:
> Most reasoning\-capable OpenAI models now use the[`/v1/responses`](https://platform.openai.com/docs/api-reference/responses)endpoint instead of`/v1/chat/completions`\. This enables interleaved reasoning across tool calls for GPT\-5 class models\.[\#1435](https://github.com/simonw/llm/pull/1435)
This means you can now see the summarized reasoning tokens when you run prompts against an OpenAI model, displayed in a different color to standard error\. Use the`\-R`or`\-\-hide\-reasoning`flags if you don't want to see that\.
Posted[12th May 2026](https://simonwillison.net/2026/May/12/)at 5:45 pm
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Release 0.33 of the LLM tool includes upgrades to OpenAI dependencies, enhanced embedding key support, repeatable prompt templates, and reasoning summary options for Responses API models.
LLM 0.32 adds visible reasoning traces, server-side tools, new GPT-5.6 models, and redesigned logging, plus a new llm openai endpoint command for any OpenAI-compatible endpoint.
llm 0.32rc2 fixes a dependency issue, makes GPT-5.6 Luna the default model, and adds a new 'llm openai endpoint' command for running prompts against OpenAI-compatible endpoints without configuration.
The llm tool has been updated to version 0.32.1 to fix a dependency issue with the OpenAI library. A forthcoming 0.33 version will migrate from httpx to httpx2.