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Mistral Medium 3.5 vs Grok‑1

Mistral Mistral Medium 3.5 vs xAI Grok‑1 — side-by-side specs.

Mistral
Mistral Medium 3.5
xAI
Grok‑1
Overview
CompanyMistralxAI
Release dateApr 30 2026Nov 3 2023
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGrok‑1 shipped 909 days before Mistral Medium 3.5

Which is better: Mistral Medium 3.5 or Grok‑1?

Mistral Medium 3.5 and Grok‑1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok‑1 shipped 909 days before Mistral Medium 3.5, so benchmark comparisons should account for the intervening progress.

Grok‑1 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 Mistral Medium 3.5 released?
Mistral Medium 3.5 was released by Mistral on Apr 30 2026.
When was Grok‑1 released?
Grok‑1 was released by xAI on Nov 3 2023.
Is Mistral Medium 3.5 or Grok‑1 open source?
Grok‑1 is an open-source / open-weight model released by xAI. Mistral Medium 3.5 is a proprietary model released by Mistral.

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