PulseAugur
EN
LIVE 23:43:18

Mistral AI fixes OpenAI SDK tool definition bug in Python library

By PulseAugur Editorial · [1 sources] ·

A bug in the mistral-common Python library, specifically version 1.12.0, caused issues when converting tool definitions from OpenAI's SDK. The OpenAI SDK defaults to including `"strict": null` for optional parameters, which mistral-common's `Function.from_openai` method incorrectly rejected. This has been fixed in a pull request merged on October 21, 2026, and will be included in the next release after 1.12.0. A workaround involves excluding null values when dumping OpenAI tool definitions. AI

IMPACT Ensures smoother interoperability between OpenAI and Mistral models for developers using their respective Python libraries.

RANK_REASON A bug fix for a Python library related to integrating OpenAI SDK tools with Mistral models.

Read on dev.to — LLM tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Mistral AI fixes OpenAI SDK tool definition bug in Python library

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
A bug fix for a Python library related to integrating OpenAI SDK tools with Mistral models.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, infra
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
2 days old
Coverage has settled into its steady-state source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. dev.to — LLM tag TIER_1 English(EN) · ZAKARIA KHCHICHE ·

    An OpenAI tool Mistral rejected: the SDK's strict: null

    <p><strong>TL;DR</strong>: mistral-common's <code>Function.from_openai</code> rejected any tool definition containing <code>"strict": null</code>. That is exactly what the OpenAI SDK produces by default when you dump a tool. My fix (<a href="https://github.com/mistralai/mistral-c…

RELATED ENTITIES

RELATED TOPICS