xAI: Grok 4 vs MiMo-V2.5-Pro
Compare xAI: Grok 4 by xAI against MiMo-V2.5-Pro by Xiaomi, context windows of 256K vs 1.0M, tested across 52 shared challenges.
Our Verdict
MiMo-V2.5-Pro
xAI: Grok 4Runner-up
No community votes yet. On paper, MiMo-V2.5-Pro has the edge — bigger model tier, newer, bigger context window.
MiMo-V2.5-Pro is 5.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4
Input
$3.00
Output
$15.00
MiMo-V2.5-Pro
Input
$1.00
3.0× cheaper
Output
$3.00
5.0× cheaper
MiMo-V2.5-Pro is cheaper on both — 3.0× input, 5.0× output
Writing DNA
Style Comparison
Similarity
47%
MiMo-V2.5-Pro uses 8.9x more emoji
xAI: Grok 4
MiMo-V2.5-Pro
53%Vocabulary58%
18wSentence Length22w
0.67Hedging0.61
2.7Bold5.7
2.7Lists3.1
0.07Emoji0.63
0.86Headings1.40
0.04Transitions0.02
Based on 21 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
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