OpenAI: GPT-5.6 Luna Pro vs Mistral Nemo
Compare OpenAI: GPT-5.6 Luna Pro by OpenAI against Mistral Nemo by Mistral AI, context windows of 1.1M vs 128K, tested across 54 shared challenges.
Our Verdict
OpenAI: GPT-5.6 Luna Pro
Mistral Nemo
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Mistral Nemo is 86x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
OpenAI: GPT-5.6 Luna Pro
Input
$1.00
Output
$6.00
Mistral Nemo
Input
$0.03
33× cheaper
Output
$0.07
86× cheaper
Mistral Nemo is cheaper on both — 33× input, 86× output
Writing DNA
Style Comparison
Similarity
65%
OpenAI: GPT-5.6 Luna Pro uses 53.7x more emoji
OpenAI: GPT-5.6 Luna Pro
Mistral Nemo
58%Vocabulary46%
18wSentence Length19w
0.81Hedging1.08
2.9Bold3.6
5.1Lists8.0
0.54Emoji0.00
1.10Headings0.00
0.09Transitions0.17
Based on 27 + 10 text responses
Research
What we learned reading every model
FAQ
