GPT-5.4 Pro vs MiMo-V2.5-Pro
Compare GPT-5.4 Pro by OpenAI against MiMo-V2.5-Pro by Xiaomi, context windows of 1.1M vs 1.0M, tested across 17 shared challenges.
Our Verdict
GPT-5.4 Pro
MiMo-V2.5-Pro
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
MiMo-V2.5-Pro is 60x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.4 Pro
Input
$30.00
Output
$180.00
MiMo-V2.5-Pro
Input
$1.00
30× cheaper
Output
$3.00
60× cheaper
MiMo-V2.5-Pro is cheaper on both — 30× input, 60× output
Writing DNA
Style Comparison
Similarity
64%
MiMo-V2.5-Pro uses 62.5x more emoji
GPT-5.4 Pro
MiMo-V2.5-Pro
50%Vocabulary58%
35wSentence Length22w
0.70Hedging0.61
7.5Bold5.7
8.3Lists3.1
0.00Emoji0.63
2.52Headings1.40
0.01Transitions0.02
Based on 12 + 27 text responses
Research
What we learned reading every model
FAQ
