GPT-5 Mini
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GPT-5 Mini vs xAI: Grok 4
Compare GPT-5 Mini by OpenAI against xAI: Grok 4 by xAI, in 2 community votes, gpt-5 mini wins 100% of head-to-head duels, tested across 36 shared challenges. Updated April 2026.
Which is better, GPT-5 Mini or xAI: Grok 4?
GPT-5 Mini is the better choice overall, winning 100% of 2 blind community votes on Rival. GPT-5 Mini costs $0.25/M input tokens vs $3/M for xAI: Grok 4. Compare their real outputs side by side below.
Key Differences Between GPT-5 Mini and xAI: Grok 4
GPT-5 Mini is made by openai while xAI: Grok 4 is from xai. On pricing, GPT-5 Mini costs $0.25/M input tokens vs $3/M for xAI: Grok 4. In community voting, In 2 community votes, GPT-5 Mini wins 100% of head-to-head duels.
In 2 community votes, GPT-5 Mini wins 100% of head-to-head duels. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Our Verdict
GPT-5 MiniWinner
xAI: Grok 4Runner-up
Pick GPT-5 Mini. In 2 blind votes, GPT-5 Mini wins 100% of the time. That's not luck.
GPT-5 Mini is 7.5x cheaper per token — worth considering if cost matters.
Clear winner
Writing DNA
Style Comparison
Similarity
98%
xAI: Grok 4 uses 267.9x more bold
GPT-5 Mini
xAI: Grok 4
62%Vocabulary53%
21wSentence Length18w
0.16Hedging0.67
0.0Bold2.7
3.4Lists2.7
0.00Emoji0.07
0.00Headings0.86
0.05Transitions0.04
Based on 15 + 21 text responses
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