Grok 3 Mini Beta vs Claude Opus 4
Compare Grok 3 Mini Beta by xAI against Claude Opus 4 by Anthropic, context windows of 131K vs 200K, tested across 7 shared challenges. Updated April 2026.
Which is better, Grok 3 Mini Beta or Claude Opus 4?
Grok 3 Mini Beta and Claude Opus 4 are both competitive models. Grok 3 Mini Beta costs $0.4/M input tokens vs $15/M for Claude Opus 4. Context windows: 131K vs 200K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 Mini Beta and Claude Opus 4
Grok 3 Mini Beta is made by xai while Claude Opus 4 is from anthropic. Grok 3 Mini Beta has a 131K token context window compared to Claude Opus 4's 200K. On pricing, Grok 3 Mini Beta costs $0.4/M input tokens vs $15/M for Claude Opus 4.
Our Verdict
Claude Opus 4
Grok 3 Mini BetaRunner-up
No community votes yet. On paper, Claude Opus 4 has the edge — bigger model tier, newer, bigger context window.
Grok 3 Mini Beta is 94x cheaper per token — worth considering if cost matters.
Slight edge
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.
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