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DeepSeek V3.1 vs Mistral Medium

DeepSeek DeepSeek V3.1 vs Mistral Mistral Medium — side-by-side specs.

DeepSeek
DeepSeek V3.1
Mistral
Mistral Medium
Overview
CompanyDeepSeekMistral
Release dateAug 21 2025Dec 2023
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Timeline
Release gapMistral Medium shipped 629 days before DeepSeek V3.1

Which is better: DeepSeek V3.1 or Mistral Medium?

DeepSeek V3.1 and Mistral Medium don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Mistral Medium shipped 629 days before DeepSeek V3.1, so benchmark comparisons should account for the intervening progress.

DeepSeek V3.1 is an open-source / open-weight model; Mistral Medium is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3.1 and Mistral Medium don't publish scores on any of the same benchmarks.

Frequently asked questions

When was DeepSeek V3.1 released?
DeepSeek V3.1 was released by DeepSeek on Aug 21 2025.
When was Mistral Medium released?
Mistral Medium was released by Mistral on Dec 2023.
Is DeepSeek V3.1 or Mistral Medium open source?
DeepSeek V3.1 is an open-source / open-weight model released by DeepSeek. Mistral Medium is a proprietary model released by Mistral.

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