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DeepSeek Chat (R1-based) vs Mistral Medium 3

DeepSeek DeepSeek Chat (R1-based) vs Mistral Mistral Medium 3 — side-by-side specs.

DeepSeek
DeepSeek Chat (R1-based)
Mistral
Mistral Medium 3
Overview
CompanyDeepSeekMistral
Release dateJan 20 2025May 7 2025
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek Chat (R1-based) shipped 107 days before Mistral Medium 3

Which is better: DeepSeek Chat (R1-based) or Mistral Medium 3?

DeepSeek Chat (R1-based) and Mistral Medium 3 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. DeepSeek Chat (R1-based) shipped 107 days before Mistral Medium 3, so benchmark comparisons should account for the intervening progress.

DeepSeek Chat (R1-based) is an open-source / open-weight model; Mistral Medium 3 is proprietary.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was DeepSeek Chat (R1-based) released?
DeepSeek Chat (R1-based) was released by DeepSeek on Jan 20 2025.
When was Mistral Medium 3 released?
Mistral Medium 3 was released by Mistral on May 7 2025.
Is DeepSeek Chat (R1-based) or Mistral Medium 3 open source?
DeepSeek Chat (R1-based) is an open-source / open-weight model released by DeepSeek. Mistral Medium 3 is a proprietary model released by Mistral.

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