GPT-4o (Omni) vs Grok 3 Mini Beta
Compare GPT-4o (Omni) by OpenAI against Grok 3 Mini Beta by xAI, in 1 community votes, grok 3 mini beta wins 100% of head-to-head duels, context windows of 128K vs 131K, tested across 13 shared challenges. Updated April 2026.
Which is better, GPT-4o (Omni) or Grok 3 Mini Beta?
Grok 3 Mini Beta is the better choice overall, winning 100% of 1 blind community votes on Rival. GPT-4o (Omni) costs $2.5/M input tokens vs $0.4/M for Grok 3 Mini Beta. Context windows: 128K vs 131K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o (Omni) and Grok 3 Mini Beta
GPT-4o (Omni) is made by openai while Grok 3 Mini Beta is from xai. GPT-4o (Omni) has a 128K token context window compared to Grok 3 Mini Beta's 131K. On pricing, GPT-4o (Omni) costs $2.5/M input tokens vs $0.4/M for Grok 3 Mini Beta. In community voting, In 1 community votes, Grok 3 Mini Beta wins 100% of head-to-head duels.
In 1 community votes, Grok 3 Mini Beta wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 1+ human preference judgments for this pair.
Our Verdict
Grok 3 Mini BetaWinner
GPT-4o (Omni)Runner-up
Pick Grok 3 Mini Beta. In 1 blind votes, Grok 3 Mini Beta wins 100% of the time. That's not luck.
Grok 3 Mini Beta is 13x cheaper per token — worth considering if cost matters.
Clear winner
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