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Grok 4.1 vs Grok‑1

xAI Grok 4.1 vs xAI Grok‑1 — side-by-side specs.

xAI
Grok 4.1
xAI
Grok‑1
Overview
CompanyxAIxAI
Release dateNov 17 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 745 days before Grok 4.1

Which is better: Grok 4.1 or Grok‑1?

Grok 4.1 and Grok‑1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok‑1 shipped 745 days before Grok 4.1, so benchmark comparisons should account for the intervening progress.

Grok‑1 is an open-source / open-weight model; Grok 4.1 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 Grok 4.1 released?
Grok 4.1 was released by xAI on Nov 17 2025.
When was Grok‑1 released?
Grok‑1 was released by xAI on Nov 3 2023.
Is Grok 4.1 or Grok‑1 open source?
Grok‑1 is an open-source / open-weight model released by xAI. Grok 4.1 is a proprietary model released by xAI.

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