What is the difference between GPT-5.4 and MiMo-V2.5?

GPT-5.4 is developed by OpenAI while MiMo-V2.5 is developed by Xiaomi. GPT-5.4 has a 1.1M token context window vs MiMo-V2.5's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 or MiMo-V2.5?

It depends on your use case. GPT-5.4 and MiMo-V2.5 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 GPT-5.4 cost compared to MiMo-V2.5?

GPT-5.4 costs $2.5/M input tokens and MiMo-V2.5 costs $0.4/M input tokens. MiMo-V2.5 is $2.10/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 GPT-5.4 and MiMo-V2.5 on Rival?

This page shows a side-by-side comparison of GPT-5.4 and MiMo-V2.5 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 GPT-5.4 and MiMo-V2.5?

GPT-5.4 is developed by OpenAI while MiMo-V2.5 is developed by Xiaomi. GPT-5.4 has a 1.1M token context window vs MiMo-V2.5's 1.0M. You can compare their actual outputs across 53 challenges on Rival to see how they differ in practice.

Which is better, GPT-5.4 or MiMo-V2.5?

It depends on your use case. GPT-5.4 and MiMo-V2.5 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 GPT-5.4 cost compared to MiMo-V2.5?

GPT-5.4 costs $2.5/M input tokens and MiMo-V2.5 costs $0.4/M input tokens. MiMo-V2.5 is $2.10/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 GPT-5.4 and MiMo-V2.5 on Rival?

This page shows a side-by-side comparison of GPT-5.4 and MiMo-V2.5 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.

GPT-5.4 vs MiMo-V2.5: Which Is Better?

Updated Apr 2026

Our Verdict

GPT-5.4

MiMo-V2.5Runner-up

No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, major provider backing.

MiMo-V2.5 is 7.5x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GPT-5.4

Input

$2.50

Output

$15.00

MiMo-V2.5

Input

$0.40

6.3× cheaper

Output

$2.00

7.5× cheaper

MiMo-V2.5 is cheaper on both — 6.3× input, 7.5× output

Writing DNA

Style Comparison

Similarity

46%

MiMo-V2.5 uses 100.6x more emoji

GPT-5.4

MiMo-V2.5

54%Vocabulary57%

28wSentence Length17w

0.69Hedging0.64

4.1Bold5.9

8.1Lists2.8

0.00Emoji1.01

1.84Headings1.07

0.02Transitions0.07

Based on 22 + 27 text responses

Research

What we learned reading every model

GPT-5.4 and MiMo-V2.5 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Llama 4 MaverickNew provider

GPT-5.4 vs Claude Opus 4New provider

Updated Apr 2026

Our Verdict

GPT-5.4

MiMo-V2.5Runner-up

No community votes yet. On paper, GPT-5.4 has the edge — bigger model tier, major provider backing.

MiMo-V2.5 is 7.5x cheaper per token — worth considering if cost matters.

Too close to call

API pricing

Cost per 1M tokens

GPT-5.4

Input

$2.50

Output

$15.00

MiMo-V2.5

Input

$0.40

6.3× cheaper

Output

$2.00

7.5× cheaper

MiMo-V2.5 is cheaper on both — 6.3× input, 7.5× output

Writing DNA

Style Comparison

Similarity

46%

MiMo-V2.5 uses 100.6x more emoji

GPT-5.4

MiMo-V2.5

54%Vocabulary57%

28wSentence Length17w

0.69Hedging0.64

4.1Bold5.9

8.1Lists2.8

0.00Emoji1.01

1.84Headings1.07

0.02Transitions0.07

Based on 22 + 27 text responses

Research

What we learned reading every model

GPT-5.4 and MiMo-V2.5 have opinions about your brand too.Ask 10 models what they tell people about you. Verbatim receipts.Run the mirror

FAQ

Common questions

Keep exploring

More comparisons

GPT-5.4 vs MiniMax M3New provider

GPT-5.4 vs Llama 4 MaverickNew provider

GPT-5.4 vs Claude Opus 4New provider