xAI: Grok 4.5 vs Mistral Nemo
Compare xAI: Grok 4.5 by xAI against Mistral Nemo by Mistral AI, context windows of 500K vs 128K, tested across 54 shared challenges.
Our Verdict
xAI: Grok 4.5
Mistral NemoRunner-up
No community votes yet. On paper, xAI: Grok 4.5 has the edge — newer, bigger context window, major provider backing.
Mistral Nemo is 86x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4.5
Input
$2.00
Output
$6.00
Mistral Nemo
Input
$0.03
67× cheaper
Output
$0.07
86× cheaper
Mistral Nemo is cheaper on both — 67× input, 86× output
Writing DNA
Style Comparison
Similarity
33%
xAI: Grok 4.5 uses 9.0x more emoji
xAI: Grok 4.5
Mistral Nemo
61%Vocabulary46%
16wSentence Length19w
0.23Hedging1.08
2.5Bold3.6
2.4Lists8.0
0.09Emoji0.00
0.48Headings0.00
0.06Transitions0.17
Based on 27 + 10 text responses
Research
What we learned reading every model
FAQ
