Mistral Devstral Medium vs GPT-5.6 Luna Pro
Compare Mistral Devstral Medium by Mistral AI against GPT-5.6 Luna Pro by OpenAI, tested across 54 shared challenges.
Our Verdict
GPT-5.6 Luna Pro
Mistral Devstral MediumRunner-up
No community votes yet. On paper, GPT-5.6 Luna Pro has the edge — newer, bigger context window, major provider backing.
Mistral Devstral Medium is 3.0x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
Mistral Devstral Medium
Input
$0.40
2.5× cheaper
Output
$2.00
3.0× cheaper
GPT-5.6 Luna Pro
Input
$1.00
Output
$6.00
Mistral Devstral Medium is cheaper on both — 2.5× input, 3.0× output
Writing DNA
Style Comparison
Similarity
58%
GPT-5.6 Luna Pro uses 53.7x more emoji
Mistral Devstral Medium
GPT-5.6 Luna Pro
50%Vocabulary58%
17wSentence Length18w
0.56Hedging0.81
4.5Bold2.9
5.3Lists5.1
0.00Emoji0.54
0.19Headings1.10
0.32Transitions0.09
Based on 21 + 27 text responses
Research
What we learned reading every model
FAQ
