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Claude Opus 4.6 vs Grok 4.20 Multi-Agent Beta

Compare Claude Opus 4.6 by Anthropic against Grok 4.20 Multi-Agent Beta by xAI, context windows of 1.0M vs 2.0M, tested across 52 shared challenges. Updated March 2026.

Which is better, Claude Opus 4.6 or Grok 4.20 Multi-Agent Beta?

Claude Opus 4.6 and Grok 4.20 Multi-Agent Beta are both competitive models. Claude Opus 4.6 costs $5/M input tokens vs $2/M for Grok 4.20 Multi-Agent Beta. Context windows: 1000K vs 2000K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.6 and Grok 4.20 Multi-Agent Beta

Claude Opus 4.6 is made by anthropic while Grok 4.20 Multi-Agent Beta is from xai. Claude Opus 4.6 has a 1000K token context window compared to Grok 4.20 Multi-Agent Beta's 2000K. On pricing, Claude Opus 4.6 costs $5/M input tokens vs $2/M for Grok 4.20 Multi-Agent Beta.

Our Verdict
Grok 4.20 Multi-Agent Beta
Grok 4.20 Multi-Agent Beta
Claude Opus 4.6
Claude Opus 4.6Runner-up

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

Grok 4.20 Multi-Agent Beta is 4.2x cheaper per token — worth considering if cost matters.

Too close to call
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