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o4-mini vs Grok‑1

OpenAI o4-mini vs xAI Grok‑1 — side-by-side specs.

OpenAI
o4-mini
xAI
Grok‑1
Overview
CompanyOpenAIxAI
Release dateApr 16 2025Nov 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 530 days before o4-mini

Which is better: o4-mini or Grok‑1?

o4-mini and Grok‑1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok‑1 shipped 530 days before o4-mini, so benchmark comparisons should account for the intervening progress.

Grok‑1 is an open-source / open-weight model; o4-mini 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 o4-mini released?
o4-mini was released by OpenAI on Apr 16 2025.
When was Grok‑1 released?
Grok‑1 was released by xAI on Nov 3 2023.
Is o4-mini or Grok‑1 open source?
Grok‑1 is an open-source / open-weight model released by xAI. o4-mini is a proprietary model released by OpenAI.

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