ChatGPT-4o (March 2025)
Nothing here. The model returned empty. We stared at it for a while.
ChatGPT-4o (March 2025) vs OpenAI o3
Compare ChatGPT-4o (March 2025) and OpenAI o3, both from OpenAI, tested across 32 shared challenges. Updated April 2026.
Which is better, ChatGPT-4o (March 2025) or OpenAI o3?
ChatGPT-4o (March 2025) and OpenAI o3 are both competitive models. ChatGPT-4o (March 2025) costs $5/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between ChatGPT-4o (March 2025) and OpenAI o3
ChatGPT-4o (March 2025) is made by openai while OpenAI o3 is from openai. On pricing, ChatGPT-4o (March 2025) costs $5/M input tokens vs $10/M for OpenAI o3.
Our Verdict
ChatGPT-4o (March 2025)
OpenAI o3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Too close to call
Writing DNA
Style Comparison
Similarity
93%
ChatGPT-4o (March 2025) uses 94.5x more emoji
ChatGPT-4o (March 2025)
OpenAI o3
55%Vocabulary68%
24wSentence Length14w
0.52Hedging0.26
3.3Bold0.7
6.0Lists3.0
0.94Emoji0.00
0.63Headings0.38
0.05Transitions0.12
Based on 15 + 16 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