GPT-5.4 Pro vs Mistral Nemo
Compare GPT-5.4 Pro by OpenAI against Mistral Nemo by Mistral AI, context windows of 1.1M vs 128K, tested across 18 shared challenges.
Our Verdict
GPT-5.4 Pro
Mistral NemoRunner-up
No community votes yet. On paper, GPT-5.4 Pro has the edge — bigger model tier, newer, bigger context window, major provider backing.
Mistral Nemo is 2571x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
GPT-5.4 Pro
Input
$30.00
Output
$180.00
Mistral Nemo
Input
$0.03
1000× cheaper
Output
$0.07
2571× cheaper
Mistral Nemo is cheaper on both — 1000× input, 2571× output
Writing DNA
Style Comparison
Similarity
64%
GPT-5.4 Pro uses 251.6x more headings
GPT-5.4 Pro
Mistral Nemo
50%Vocabulary46%
35wSentence Length19w
0.70Hedging1.08
7.5Bold3.6
8.3Lists8.0
0.00Emoji0.00
2.52Headings0.00
0.01Transitions0.17
Based on 12 + 10 text responses
Research
What we learned reading every model
FAQ
