Claude Opus 4.6 vs Grok 3 Mini Beta

Compare Claude Opus 4.6 by Anthropic against Grok 3 Mini Beta by xAI, context windows of 1.0M vs 131K, tested across 13 shared challenges. Updated April 2026.

Which is better, Claude Opus 4.6 or Grok 3 Mini Beta?

Claude Opus 4.6 and Grok 3 Mini Beta are both competitive models. Claude Opus 4.6 costs $5/M input tokens vs $0.4/M for Grok 3 Mini Beta. Context windows: 1000K vs 131K tokens. Compare their real outputs side by side below.

Key Differences Between Claude Opus 4.6 and Grok 3 Mini Beta

Claude Opus 4.6 is made by anthropic while Grok 3 Mini Beta is from xai. Claude Opus 4.6 has a 1000K token context window compared to Grok 3 Mini Beta's 131K. On pricing, Claude Opus 4.6 costs $5/M input tokens vs $0.4/M for Grok 3 Mini Beta.

Our Verdict
Claude Opus 4.6
Claude Opus 4.6
Grok 3 Mini Beta
Grok 3 Mini BetaRunner-up

No community votes yet. On paper, Claude Opus 4.6 has the edge — bigger model tier, newer, bigger context window.

Grok 3 Mini Beta is 31x cheaper per token — worth considering if cost matters.

Slight edge
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Claude Opus 4.6Grok 3 Mini Beta

279 AI models invented the same fake scientist.

We read every word. 250 models. 2.14 million words. This is what we found.

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