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Home/Compare/DeepSeek-R1-Lite Preview vs Mistral Medium 3.5

DeepSeek-R1-Lite Preview vs Mistral Medium 3.5

0 vs 1 benchmarks won

DeepSeek
DeepSeek-R1-Lite Preview
Mistral
Mistral Medium 3.5
Overview
CompanyDeepSeekMistral
Release dateNov 20 2024Apr 29 2026
Model type
Open sourceYesYes
Specifications
Parameters
128B
Context window
256k
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
77.6%
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek-R1-Lite Preview shipped 525 days before Mistral Medium 3.5

Which is better: DeepSeek-R1-Lite Preview or Mistral Medium 3.5?

Mistral Medium 3.5 leads DeepSeek-R1-Lite Preview on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). DeepSeek-R1-Lite Preview shipped 525 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

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-R1-Lite Preview released?
DeepSeek-R1-Lite Preview was released by DeepSeek on Nov 20 2024.
When was Mistral Medium 3.5 released?
Mistral Medium 3.5 was released by Mistral on Apr 29 2026.

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