GPT-5.1 vs MiniMax M2.5
Compare GPT-5.1 by OpenAI against MiniMax M2.5 by MiniMax, context windows of 400K vs 205K, tested across 51 shared challenges.
Our Verdict
GPT-5.1
MiniMax M2.5Runner-up
No community votes yet. On paper, GPT-5.1 has the edge — bigger model tier, bigger context window, major provider backing.
MiniMax M2.5 is 8.3x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.1
Input
$1.25
Output
$10.00
MiniMax M2.5
Input
$0.30
4.2× cheaper
Output
$1.20
8.3× cheaper
MiniMax M2.5 is cheaper on both — 4.2× input, 8.3× output
Writing DNA
Style Comparison
Similarity
51%
MiniMax M2.5 uses 1.5x more emoji
GPT-5.1
MiniMax M2.5
62%Vocabulary55%
19wSentence Length25w
0.29Hedging0.58
3.5Bold6.0
7.2Lists4.4
0.00Emoji0.01
0.61Headings1.11
0.03Transitions0.16
Based on 14 + 23 text responses
Research
What we learned reading every model
FAQ
Common questions
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