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Claude 1 vs Grok 4.1

Anthropic Claude 1 vs xAI Grok 4.1 — side-by-side specs.

Anthropic
Claude 1
xAI
Grok 4.1
Overview
CompanyAnthropicxAI
Release dateMar 14 2023Nov 17 2025
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude 1 shipped 979 days before Grok 4.1

Which is better: Claude 1 or Grok 4.1?

Claude 1 and Grok 4.1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Claude 1 shipped 979 days before Grok 4.1, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

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 Claude 1 released?
Claude 1 was released by Anthropic on Mar 14 2023.
When was Grok 4.1 released?
Grok 4.1 was released by xAI on Nov 17 2025.

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