xAI: Grok 4 vs MiMo-V2.5
Compare xAI: Grok 4 by xAI against MiMo-V2.5 by Xiaomi, context windows of 256K vs 1.0M, tested across 53 shared challenges.
Our Verdict
xAI: Grok 4
MiMo-V2.5
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 is 7.5x 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
Input
$0.40
7.5× cheaper
Output
$2.00
7.5× cheaper
MiMo-V2.5 is cheaper on both — 7.5× input, 7.5× output
Writing DNA
Style Comparison
Similarity
50%
MiMo-V2.5 uses 14.3x more emoji
xAI: Grok 4
MiMo-V2.5
53%Vocabulary57%
18wSentence Length17w
0.67Hedging0.64
2.7Bold5.9
2.7Lists2.8
0.07Emoji1.01
0.86Headings1.07
0.04Transitions0.07
Based on 21 + 27 text responses
Research
What we learned reading every model
FAQ
Common questions
Keep exploring
