Grok 3 Mini Beta vs ChatGPT-4o (March 2025)
Compare Grok 3 Mini Beta by xAI against ChatGPT-4o (March 2025) by OpenAI, context windows of 131K vs 128K, tested across 11 shared challenges. Updated March 2026.
Which is better, Grok 3 Mini Beta or ChatGPT-4o (March 2025)?
Grok 3 Mini Beta and ChatGPT-4o (March 2025) are both competitive models. Grok 3 Mini Beta costs $0.4/M input tokens vs $5/M for ChatGPT-4o (March 2025). Context windows: 131K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 Mini Beta and ChatGPT-4o (March 2025)
Grok 3 Mini Beta is made by xai while ChatGPT-4o (March 2025) is from openai. Grok 3 Mini Beta has a 131K token context window compared to ChatGPT-4o (March 2025)'s 128K. On pricing, Grok 3 Mini Beta costs $0.4/M input tokens vs $5/M for ChatGPT-4o (March 2025).
Our Verdict
ChatGPT-4o (March 2025)
Grok 3 Mini BetaRunner-up
No community votes yet. On paper, ChatGPT-4o (March 2025) has the edge — bigger model tier.
Grok 3 Mini Beta is 19x cheaper per token — worth considering if cost matters.
Too close to call
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