What is the difference between MiMo-V2.5 and OpenAI o4-mini?

MiMo-V2.5 is developed by Xiaomi while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, MiMo-V2.5 or OpenAI o4-mini?

It depends on your use case. MiMo-V2.5 and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does MiMo-V2.5 cost compared to OpenAI o4-mini?

MiMo-V2.5 costs $0.4/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. MiMo-V2.5 is $0.70/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 MiMo-V2.5 and OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of MiMo-V2.5 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 MiMo-V2.5 and OpenAI o4-mini?

MiMo-V2.5 is developed by Xiaomi while OpenAI o4-mini is developed by OpenAI. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, MiMo-V2.5 or OpenAI o4-mini?

It depends on your use case. MiMo-V2.5 and OpenAI o4-mini each have strengths in different areas. Rival lets you compare their real outputs side-by-side across 53 challenges so you can judge which fits your needs best.

How much does MiMo-V2.5 cost compared to OpenAI o4-mini?

MiMo-V2.5 costs $0.4/M input tokens and OpenAI o4-mini costs $1.1/M input tokens. MiMo-V2.5 is $0.70/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 MiMo-V2.5 and OpenAI o4-mini on Rival?

This page shows a side-by-side comparison of MiMo-V2.5 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.

MiMo-V2.5 vs OpenAI o4-mini: Which Is Better?

Rival

Updated Apr 2026

Our Verdict

MiMo-V2.5

OpenAI o4-miniRunner-up

No community votes yet. On paper, MiMo-V2.5 has the edge — bigger model tier, newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

MiMo-V2.5

Input

$0.40

2.8× cheaper

Output

$2.00

2.2× cheaper

OpenAI o4-mini

Input

$1.10

Output

$4.40

MiMo-V2.5 is cheaper on both — 2.8× input, 2.2× output

Writing DNA

Style Comparison

Similarity

46%

MiMo-V2.5 uses 594.5x more bold

MiMo-V2.5

OpenAI o4-mini

57%Vocabulary73%

17wSentence Length15w

0.64Hedging0.18

5.9Bold0.0

2.8Lists2.1

1.01Emoji0.00

1.07Headings0.00

0.07Transitions0.02

Based on 27 + 10 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

OpenAI o4-mini vs MiniMax M3New provider

OpenAI o4-mini vs Claude Sonnet 4New provider

OpenAI o4-mini vs Llama 4 MaverickNew provider

Rival

Updated Apr 2026

Our Verdict

MiMo-V2.5

OpenAI o4-miniRunner-up

No community votes yet. On paper, MiMo-V2.5 has the edge — bigger model tier, newer, bigger context window.

Too close to call

API pricing

Cost per 1M tokens

MiMo-V2.5

Input

$0.40

2.8× cheaper

Output

$2.00

2.2× cheaper

OpenAI o4-mini

Input

$1.10

Output

$4.40

MiMo-V2.5 is cheaper on both — 2.8× input, 2.2× output

Writing DNA

Style Comparison

Similarity

46%

MiMo-V2.5 uses 594.5x more bold

MiMo-V2.5

OpenAI o4-mini

57%Vocabulary73%

17wSentence Length15w

0.64Hedging0.18

5.9Bold0.0

2.8Lists2.1

1.01Emoji0.00

1.07Headings0.00

0.07Transitions0.02

Based on 27 + 10 text responses

Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

OpenAI o4-mini vs MiniMax M3New provider

OpenAI o4-mini vs Claude Sonnet 4New provider

OpenAI o4-mini vs Llama 4 MaverickNew provider

Rival