OpenAI o3 vs OpenAI o4 Mini High

Compare OpenAI o3 and OpenAI o4 Mini High, both from OpenAI, in 28 community votes, openai o4 mini high wins 75% of head-to-head duels, tested across 38 shared challenges. Updated March 2026.

Which is better, OpenAI o3 or OpenAI o4 Mini High?

OpenAI o4 Mini High is the better choice overall, winning 75% of 28 blind community votes on Rival. OpenAI o3 costs $10/M input tokens vs $1.1/M for OpenAI o4 Mini High. Compare their real outputs side by side below.

Key Differences Between OpenAI o3 and OpenAI o4 Mini High

OpenAI o3 is made by openai while OpenAI o4 Mini High is from openai. On pricing, OpenAI o3 costs $10/M input tokens vs $1.1/M for OpenAI o4 Mini High. In community voting, In 28 community votes, OpenAI o4 Mini High wins 75% of head-to-head duels.

In 28 community votes, OpenAI o4 Mini High wins 75% of head-to-head duels. OpenAI o3 leads in Reasoning, while OpenAI o4 Mini High leads in Image Generation, Web Design, Conversation. Based on blind community voting from the Rival open dataset of 28+ human preference judgments for this pair.

Image Generation: OpenAI o4 Mini High wins 75% of votes
Web Design: OpenAI o4 Mini High wins 86% of votes
Reasoning: OpenAI o3 wins 67% of votes
Conversation: OpenAI o4 Mini High wins 100% of votes
Our Verdict
OpenAI o4 Mini High
OpenAI o4 Mini HighWinner
OpenAI o3
OpenAI o3Runner-up

Pick OpenAI o4 Mini High. In 28 blind votes, OpenAI o4 Mini High wins 75% of the time. That's not luck.

Pick OpenAI o3 for Reasoning. Pick OpenAI o4 Mini High for Conversation, Web Design, Image Generation. OpenAI o4 Mini High is 9.1x cheaper per token — worth considering if cost matters.

Clear winner
Writing DNA

Style Comparison

Similarity
76%

OpenAI o3 uses 69.5x more bold

OpenAI o3
OpenAI o4 Mini High
68%Vocabulary70%
14wSentence Length18w
0.26Hedging0.33
0.7Bold0.0
3.0Lists1.3
0.00Emoji0.02
0.38Headings0.00
0.12Transitions0.04
Based on 16 + 14 text responses
vs

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OpenAI o3OpenAI o4 Mini High
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