What is the difference between OpenAI o4-mini and Solar Pro 3?

OpenAI o4-mini is developed by OpenAI while Solar Pro 3 is developed by Upstage. You can compare their actual outputs across 39 challenges on Rival to see how they differ in practice.

Which is better, OpenAI o4-mini or Solar Pro 3?

It depends on your use case. OpenAI o4-mini and Solar Pro 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 39 challenges so you can judge which fits your needs best.

How much does OpenAI o4-mini cost compared to Solar Pro 3?

OpenAI o4-mini costs $1.1/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $1.10/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 OpenAI o4-mini and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of OpenAI o4-mini and Solar Pro 3 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 OpenAI o4-mini and Solar Pro 3?

OpenAI o4-mini is developed by OpenAI while Solar Pro 3 is developed by Upstage. You can compare their actual outputs across 39 challenges on Rival to see how they differ in practice.

Which is better, OpenAI o4-mini or Solar Pro 3?

It depends on your use case. OpenAI o4-mini and Solar Pro 3 each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 39 challenges so you can judge which fits your needs best.

How much does OpenAI o4-mini cost compared to Solar Pro 3?

OpenAI o4-mini costs $1.1/M input tokens and Solar Pro 3 costs $0/M input tokens. Solar Pro 3 is $1.10/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 OpenAI o4-mini and Solar Pro 3 on Rival?

This page shows a side-by-side comparison of OpenAI o4-mini and Solar Pro 3 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.

OpenAI o4-mini vs Solar Pro 3: Which Is Better?

Rival

Updated Jan 2026

Our Verdict

Solar Pro 3

OpenAI o4-miniRunner-up

No community votes yet. On paper, Solar Pro 3 has the edge — bigger model tier, newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

OpenAI o4-mini

Input

$1.10

Output

$4.40

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

29%

Solar Pro 3 uses 654.8x more bold

OpenAI o4-mini

Solar Pro 3

73%Vocabulary50%

15wSentence Length21w

0.18Hedging0.42

0.0Bold6.5

2.1Lists2.2

0.00Emoji0.17

0.00Headings0.56

0.02Transitions0.12

Based on 10 + 18 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Solar Pro 3 vs MiniMax M3New provider

Solar Pro 3 vs Claude Sonnet 4New provider

Solar Pro 3 vs xAI: Grok 4New provider

Rival

Updated Jan 2026

Our Verdict

Solar Pro 3

OpenAI o4-miniRunner-up

No community votes yet. On paper, Solar Pro 3 has the edge — bigger model tier, newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

OpenAI o4-mini

Input

$1.10

Output

$4.40

Solar Pro 3

Input

$0.000

Output

$0.000

Writing DNA

Style Comparison

Similarity

29%

Solar Pro 3 uses 654.8x more bold

OpenAI o4-mini

Solar Pro 3

73%Vocabulary50%

15wSentence Length21w

0.18Hedging0.42

0.0Bold6.5

2.1Lists2.2

0.00Emoji0.17

0.00Headings0.56

0.02Transitions0.12

Based on 10 + 18 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

Solar Pro 3 vs MiniMax M3New provider

Solar Pro 3 vs Claude Sonnet 4New provider

Solar Pro 3 vs xAI: Grok 4New provider

Rival