OpenAI: GPT-5.6 Terra vs MiMo-V2.5
Compare OpenAI: GPT-5.6 Terra by OpenAI against MiMo-V2.5 by Xiaomi, context windows of 1.1M vs 1.0M, tested across 54 shared challenges.
Our Verdict
OpenAI: GPT-5.6 Terra
MiMo-V2.5Runner-up
No community votes yet. On paper, OpenAI: GPT-5.6 Terra has the edge — newer, 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
OpenAI: GPT-5.6 Terra
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
49%
MiMo-V2.5 uses 100.6x more emoji
OpenAI: GPT-5.6 Terra
MiMo-V2.5
57%Vocabulary57%
18wSentence Length17w
0.85Hedging0.64
2.8Bold5.9
4.6Lists2.8
0.00Emoji1.01
1.12Headings1.07
0.06Transitions0.07
Based on 27 + 27 text responses
Research
What we learned reading every model
FAQ
