What is the difference between o3 Mini and OpenAI o4-mini?

Both are developed by OpenAI but target different use cases. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, o3 Mini or OpenAI o4-mini?

It depends on your use case. o3 Mini and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does o3 Mini cost compared to OpenAI o4-mini?

o3 Mini costs $1.1/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. OpenAI o4-mini is $0.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare o3 Mini and OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of o3 Mini and OpenAI o4-mini across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

What is the difference between o3 Mini and OpenAI o4-mini?

Both are developed by OpenAI but target different use cases. You can compare their actual outputs across 54 challenges on Rival to see how they differ in practice.

Which is better, o3 Mini or OpenAI o4-mini?

It depends on your use case. o3 Mini and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 54 challenges so you can judge which fits your needs best.

How much does o3 Mini cost compared to OpenAI o4-mini?

o3 Mini costs $1.1/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. OpenAI o4-mini is $0.00/M cheaper per input. Check their side-by-side outputs on Rival to see if the price difference is justified by quality.

How can I compare o3 Mini and OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of o3 Mini and OpenAI o4-mini across shared challenges. You can vote on which model produced the better output in a blind duel. Browsing and voting are free. No account is needed to look; signing in only saves your votes and likes.

o3 Mini vs OpenAI o4-mini: Which Is Better?

Rival

Updated Apr 2025

Our Verdict

OpenAI o4-mini

o3 MiniRunner-up

No community votes yet. On paper, OpenAI o4-mini has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

o3 Mini

Input

$1.10

Output

$4.40

OpenAI o4-mini

Input

$1.10

Output

$4.40

Writing DNA

Style Comparison

Similarity

63%

o3 Mini uses 390.2x more bold

o3 Mini

OpenAI o4-mini

65%Vocabulary73%

17wSentence Length15w

0.74Hedging0.18

3.9Bold0.0

1.7Lists2.1

0.00Emoji0.00

0.47Headings0.00

0.38Transitions0.02

Based on 12 + 10 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

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Rival

Updated Apr 2025

Our Verdict

OpenAI o4-mini

o3 MiniRunner-up

No community votes yet. On paper, OpenAI o4-mini has the edge — bigger model tier, newer.

Too close to call

API pricing

Cost per 1M tokens

o3 Mini

Input

$1.10

Output

$4.40

OpenAI o4-mini

Input

$1.10

Output

$4.40

Writing DNA

Style Comparison

Similarity

63%

o3 Mini uses 390.2x more bold

o3 Mini

OpenAI o4-mini

65%Vocabulary73%

17wSentence Length15w

0.74Hedging0.18

3.9Bold0.0

1.7Lists2.1

0.00Emoji0.00

0.47Headings0.00

0.38Transitions0.02

Based on 12 + 10 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

o3 Mini vs MiniMax M3New provider

o3 Mini vs Grok 3New provider

o3 Mini vs Llama 4 MaverickNew provider

Rival