Grok 3
Nothing here. The model returned empty. We stared at it for a while.
Grok 3 vs ChatGPT-4o (March 2025)
Compare Grok 3 by xAI against ChatGPT-4o (March 2025) by OpenAI, in 2 community votes, grok 3 and chatgpt-4o (march 2025) are closely matched, context windows of 128K vs 128K, tested across 32 shared challenges. Updated April 2026.
Which is better, Grok 3 or ChatGPT-4o (March 2025)?
Grok 3 and ChatGPT-4o (March 2025) are closely matched based on 2 community votes. Context windows: 128K vs 128K tokens. Compare their real outputs side by side below.
Key Differences Between Grok 3 and ChatGPT-4o (March 2025)
Grok 3 is made by xai while ChatGPT-4o (March 2025) is from openai. Grok 3 has a 128K token context window compared to ChatGPT-4o (March 2025)'s 128K. In community voting, In 2 community votes, Grok 3 and ChatGPT-4o (March 2025) are closely matched.
In 2 community votes, Grok 3 and ChatGPT-4o (March 2025) are closely matched. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Our Verdict
Grok 3
ChatGPT-4o (March 2025)
Genuinely even. Both are strong choices.
Too close to call
Writing DNA
Style Comparison
Similarity
80%
ChatGPT-4o (March 2025) uses 24.0x more emoji
Grok 3
ChatGPT-4o (March 2025)
49%Vocabulary55%
18wSentence Length24w
0.94Hedging0.52
2.5Bold3.3
3.0Lists6.0
0.04Emoji0.94
0.65Headings0.63
0.08Transitions0.05
Based on 17 + 15 text responses
vsAsk them anything yourself
FAQ