GPT-4o mini
Nothing here. The model returned empty. We stared at it for a while.
GPT-4o mini vs OpenAI o3
Compare GPT-4o mini and OpenAI o3, both from OpenAI, tested across 38 shared challenges. Updated April 2026.
Which is better, GPT-4o mini or OpenAI o3?
GPT-4o mini and OpenAI o3 are both competitive models. GPT-4o mini costs $0.15/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between GPT-4o mini and OpenAI o3
GPT-4o mini is made by openai while OpenAI o3 is from openai. On pricing, GPT-4o mini costs $0.15/M input tokens vs $10/M for OpenAI o3.
Our Verdict
OpenAI o3
GPT-4o miniRunner-up
No community votes yet. On paper, OpenAI o3 has the edge — bigger model tier, newer.
GPT-4o mini is 67x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
100%
GPT-4o mini uses 5.5x more bold
GPT-4o mini
OpenAI o3
54%Vocabulary68%
18wSentence Length14w
0.84Hedging0.26
3.8Bold0.7
3.3Lists3.0
0.00Emoji0.00
1.03Headings0.38
0.23Transitions0.12
Based on 22 + 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.
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FAQ