GPT-4o mini
Nothing here. The model returned empty. We stared at it for a while.
GPT-4o mini vs xAI: Grok 4
Compare GPT-4o mini by OpenAI against xAI: Grok 4 by xAI, context windows of 128K vs 256K, tested across 32 shared challenges. Updated April 2026.
Which is better, GPT-4o mini or xAI: Grok 4?
GPT-4o mini and xAI: Grok 4 are both competitive models. GPT-4o mini costs $0.15/M input tokens vs $3/M for xAI: Grok 4. Context windows: 128K vs 256K tokens. Compare their real outputs side by side below.
Key Differences Between GPT-4o mini and xAI: Grok 4
GPT-4o mini is made by openai while xAI: Grok 4 is from xai. GPT-4o mini has a 128K token context window compared to xAI: Grok 4's 256K. On pricing, GPT-4o mini costs $0.15/M input tokens vs $3/M for xAI: Grok 4.
Our Verdict
xAI: Grok 4
GPT-4o miniRunner-up
No community votes yet. On paper, xAI: Grok 4 has the edge — bigger model tier, newer, bigger context window.
GPT-4o mini is 25x cheaper per token — worth considering if cost matters.
Slight edge
Writing DNA
Style Comparison
Similarity
99%
xAI: Grok 4 uses 7.0x more emoji
GPT-4o mini
xAI: Grok 4
54%Vocabulary53%
18wSentence Length18w
0.84Hedging0.67
3.8Bold2.7
3.3Lists2.7
0.00Emoji0.07
1.03Headings0.86
0.23Transitions0.04
Based on 22 + 21 text responses
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279 AI models invented the same fake scientist.
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