Best Mistral Reasoning Models

Quick answer · Updated June 2026

The best Mistral model for reasoning is Mistral Medium 3.5 — 39.2 intelligence with extended step-by-step thinking. Mistral Small 4 (18.6) is next.

39.2Intelligence

$1.50Input /M

262KContext

Large language models with extended reasoning / thinking, ranked by intelligence. The best models for complex multi-step reasoning, math and analysis.

1M
mistral-medium-3-5
ReasoningToolsJSON+139.2 intel · $1.50/M · 262K ctx
39.2
Intelligence
2M
mistral-small-2603
ReasoningToolsJSON+118.6 intel · $0.150/M · 110 t/s
18.6
Intelligence

Frequently asked

What is the best Mistral model for reasoning?

The best Mistral model for reasoning is Mistral Medium 3.5 — 39.2 intelligence with extended step-by-step thinking. Mistral Small 4 (18.6) is next.

What's a good alternative to Mistral Medium 3.5?

Mistral Small 4 (18.6) is the closest alternative on this metric. See the full ranking above for the tradeoffs.

How many Mistral models are there?

modelgrep tracks 19 Mistral models with live benchmarks, speed, latency and per-provider pricing, led on intelligence by Mistral Medium 3.5. 2 of them qualify for this ranking.

More Mistral rankings

Mistral: Smartest LLMs Mistral: Best LLMs for Coding Mistral: Best LLMs for Design & Frontend Mistral: Fastest LLMs Mistral: Lowest-Latency LLMs Mistral: Cheapest LLMs Mistral: Best Free LLMs Mistral: Best Vision LLMs Mistral: Best LLMs for Agents Mistral: Best Open-Source LLMs Mistral: Longest-Context LLMs

All rankings

Small & Fast LLMs Smartest LLMs Best LLMs for Coding Best LLMs for Design & Frontend Fastest LLMs Lowest-Latency LLMs Cheapest LLMs Best Free LLMs Best Vision LLMs Best LLMs for Agents Best Open-Source LLMs Longest-Context LLMs