Claude 3 Opus vs Grok 3 Mini Beta
Compare Claude 3 Opus by Anthropic against Grok 3 Mini Beta by xAI, context windows of 200K vs 131K, tested across 5 shared challenges. Updated April 2026.
Which is better, Claude 3 Opus or Grok 3 Mini Beta?
Claude 3 Opus and Grok 3 Mini Beta are both competitive models. Claude 3 Opus costs $15/M input tokens vs $0.4/M for Grok 3 Mini Beta. Context windows: 200K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between Claude 3 Opus and Grok 3 Mini Beta
Claude 3 Opus is made by anthropic while Grok 3 Mini Beta is from xai. Claude 3 Opus has a 200K token context window compared to Grok 3 Mini Beta's 131K. On pricing, Claude 3 Opus costs $15/M input tokens vs $0.4/M for Grok 3 Mini Beta.
Our Verdict
Claude 3 Opus
Grok 3 Mini BetaRunner-up
No community votes yet. On paper, Claude 3 Opus has the edge — bigger model tier, bigger context window.
Grok 3 Mini Beta is 94x cheaper per token — worth considering if cost matters.
Too close to call
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
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