llm-mistral 0.16 Adds Support for Mistral Reasoning Models

What's New in llm-mistral 0.16

Simon Willison has released llm-mistral 0.16, an update to his LLM plugin that provides access to Mistral models using the Mistral API. The main addition in this release is support for reasoning models, expanding the range of Mistral models available through the plugin.

Among the newly supported models is Mistral Large 4, which the release announcement describes as newly released. With the update, users of the plugin can access Mistral's reasoning models alongside the standard Mistral models already available through the Mistral API.

Release Context

The release was announced on Simon Willison's weblog on 6th October 2026 at 9:32 pm. The post is tagged llm, mistral and llm-reasoning, placing it within Willison's ongoing coverage of tooling for large language models.

The announcement appeared alongside other recent posts on the blog, including coverage of Claude Haiku 5.5 on 7th October 2026, an article arguing for default hard budget caps published on 3rd October 2026, and a live blog of OpenAI DevDay 2026 from 29th September 2026. The post was sponsored by Deepgram, whose Flux TTS system was promoted in the page header.

Sources: Simonwillison