GPT-5 Mini
Nothing here. The model returned empty. We stared at it for a while.
GPT-5 Mini vs OpenAI o3
Compare GPT-5 Mini and OpenAI o3, both from OpenAI, tested across 46 shared challenges. Updated April 2026.
Which is better, GPT-5 Mini or OpenAI o3?
GPT-5 Mini and OpenAI o3 are both competitive models. GPT-5 Mini costs $0.25/M input tokens vs $10/M for OpenAI o3. Compare their real outputs side by side below.
Key Differences Between GPT-5 Mini and OpenAI o3
GPT-5 Mini is made by openai while OpenAI o3 is from openai. On pricing, GPT-5 Mini costs $0.25/M input tokens vs $10/M for OpenAI o3.
Our Verdict
GPT-5 Mini
OpenAI o3
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
GPT-5 Mini is 20x cheaper per token — worth considering if cost matters.
Too close to call
Writing DNA
Style Comparison
Similarity
93%
OpenAI o3 uses 69.5x more bold
GPT-5 Mini
OpenAI o3
62%Vocabulary68%
21wSentence Length14w
0.16Hedging0.26
0.0Bold0.7
3.4Lists3.0
0.00Emoji0.00
0.00Headings0.38
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.
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