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Claude 2 vs Grok 4.20 Beta

Anthropic Claude 2 vs xAI Grok 4.20 Beta — side-by-side specs.

Anthropic
Claude 2
xAI
Grok 4.20 Beta
Overview
CompanyAnthropicxAI
Release dateJul 11 2023Feb 17 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude 2 shipped 952 days before Grok 4.20 Beta

Which is better: Claude 2 or Grok 4.20 Beta?

Claude 2 and Grok 4.20 Beta do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Claude 2 shipped 952 days before Grok 4.20 Beta, 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 2 released?
Claude 2 was released by Anthropic on Jul 11 2023.
When was Grok 4.20 Beta released?
Grok 4.20 Beta was released by xAI on Feb 17 2026.

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