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Grok 4.20 Beta vs Claude Opus 4.1

Compare Grok 4.20 Beta by xAI against Claude Opus 4.1 by Anthropic, context windows of 2.0M vs 200K, tested across 27 shared challenges. Updated March 2026.

Which is better, Grok 4.20 Beta or Claude Opus 4.1?

Grok 4.20 Beta and Claude Opus 4.1 are both competitive models. Grok 4.20 Beta costs $2/M input tokens vs $15/M for Claude Opus 4.1. Context windows: 2000K vs 200K tokens. Compare their real outputs side by side below.

Key Differences Between Grok 4.20 Beta and Claude Opus 4.1

Grok 4.20 Beta is made by xai while Claude Opus 4.1 is from anthropic. Grok 4.20 Beta has a 2000K token context window compared to Claude Opus 4.1's 200K. On pricing, Grok 4.20 Beta costs $2/M input tokens vs $15/M for Claude Opus 4.1.

Our Verdict
Grok 4.20 Beta
Grok 4.20 Beta
Claude Opus 4.1
Claude Opus 4.1Runner-up

No community votes yet. On paper, Grok 4.20 Beta has the edge — newer, bigger context window.

Grok 4.20 Beta is 13x cheaper per token — worth considering if cost matters.

Too close to call
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