AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Home/Compare/DeepSeek-V4-Pro vs Mistral Medium 3.5

DeepSeek-V4-Pro vs Mistral Medium 3.5

1 vs 0 benchmarks won

DeepSeek
DeepSeek-V4-Pro
Mistral
Mistral Medium 3.5
Overview
CompanyDeepSeekMistral
Release dateApr 24 2026Apr 30 2026
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
90.1%
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapDeepSeek-V4-Pro shipped 6 days before Mistral Medium 3.5

Which is better: DeepSeek-V4-Pro or Mistral Medium 3.5?

DeepSeek-V4-Pro leads Mistral Medium 3.5 on 1 of the tracked benchmarks (GPQA Diamond, SWE-Bench Verified, MMMU). DeepSeek-V4-Pro shipped 6 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.

DeepSeek-V4-Pro is an open-source / open-weight model; Mistral Medium 3.5 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-V4-Pro released?
DeepSeek-V4-Pro was released by DeepSeek on Apr 24 2026.
When was Mistral Medium 3.5 released?
Mistral Medium 3.5 was released by Mistral on Apr 30 2026.
Is DeepSeek-V4-Pro or Mistral Medium 3.5 open source?
DeepSeek-V4-Pro is an open-source / open-weight model released by DeepSeek. Mistral Medium 3.5 is a proprietary model released by Mistral.

Other comparisons