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GPT-4.1 vs Grok‑1

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

OpenAI
GPT-4.1
xAI
Grok‑1
Overview
CompanyOpenAIxAI
Release dateMay 14 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 558 days before GPT-4.1

Which is better: GPT-4.1 or Grok‑1?

GPT-4.1 and Grok‑1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Grok‑1 shipped 558 days before GPT-4.1, so benchmark comparisons should account for the intervening progress.

Grok‑1 is an open-source / open-weight model; GPT-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 GPT-4.1 released?
GPT-4.1 was released by OpenAI on May 14 2025.
When was Grok‑1 released?
Grok‑1 was released by xAI on Nov 3 2023.
Is GPT-4.1 or Grok‑1 open source?
Grok‑1 is an open-source / open-weight model released by xAI. GPT-4.1 is a proprietary model released by OpenAI.

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