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Devstral Small 2 (24B) vs Grok‑1.5

Mistral Devstral Small 2 (24B) vs xAI Grok‑1.5 — side-by-side specs.

Mistral
Devstral Small 2 (24B)
xAI
Grok‑1.5
Overview
CompanyMistralxAI
Release dateDec 9 2025Mar 29 2024
Model type
Open sourceYesNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapGrok‑1.5 shipped 620 days before Devstral Small 2 (24B)

Which is better: Devstral Small 2 (24B) or Grok‑1.5?

Devstral Small 2 (24B) and Grok‑1.5 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok‑1.5 shipped 620 days before Devstral Small 2 (24B), so benchmark comparisons should account for the intervening progress.

Devstral Small 2 (24B) is an open-source / open-weight model; Grok‑1.5 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 Devstral Small 2 (24B) released?
Devstral Small 2 (24B) was released by Mistral on Dec 9 2025.
When was Grok‑1.5 released?
Grok‑1.5 was released by xAI on Mar 29 2024.
Is Devstral Small 2 (24B) or Grok‑1.5 open source?
Devstral Small 2 (24B) is an open-source / open-weight model released by Mistral. Grok‑1.5 is a proprietary model released by xAI.

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