ChatGPT-4o (March 2025)
Nothing here. The model returned empty. We stared at it for a while.
ChatGPT-4o (March 2025) vs Grok 3
Compare ChatGPT-4o (March 2025) by OpenAI against Grok 3 by xAI, in 2 community votes, chatgpt-4o (march 2025) and grok 3 are closely matched, context windows of 128K vs 128K, tested across 32 shared challenges. Updated April 2026.
Which is better, ChatGPT-4o (March 2025) or Grok 3?
ChatGPT-4o (March 2025) and Grok 3 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 ChatGPT-4o (March 2025) and Grok 3
ChatGPT-4o (March 2025) is made by openai while Grok 3 is from xai. ChatGPT-4o (March 2025) has a 128K token context window compared to Grok 3's 128K. In community voting, In 2 community votes, ChatGPT-4o (March 2025) and Grok 3 are closely matched.
In 2 community votes, ChatGPT-4o (March 2025) and Grok 3 are closely matched. Based on blind community voting from the Rival open dataset of 2+ human preference judgments for this pair.
Our Verdict
ChatGPT-4o (March 2025)
Grok 3
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
ChatGPT-4o (March 2025)
Grok 3
55%Vocabulary49%
24wSentence Length18w
0.52Hedging0.94
3.3Bold2.5
6.0Lists3.0
0.94Emoji0.04
0.63Headings0.65
0.05Transitions0.08
Based on 15 + 17 text responses
vsAsk them anything yourself
279 AI models invented the same fake scientist.
We read every word. 250 models. 2.14 million words. This is what we found.
Free preview13 of 58 slides
FAQ