xAI: Grok 4 vs Inception: Mercury 2
Compare xAI: Grok 4 by xAI against Inception: Mercury 2 by Inception, context windows of 256K vs 128K, tested across 53 shared challenges.
Our Verdict
xAI: Grok 4
Inception: Mercury 2Runner-up
No community votes yet. On paper, xAI: Grok 4 has the edge — bigger model tier, bigger context window, major provider backing.
Inception: Mercury 2 is 20x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
xAI: Grok 4
Input
$3.00
Output
$15.00
Inception: Mercury 2
Input
$0.25
12× cheaper
Output
$0.75
20× cheaper
Inception: Mercury 2 is cheaper on both — 12× input, 20× output
Writing DNA
Style Comparison
Similarity
63%
Inception: Mercury 2 uses 3.2x more transitions
xAI: Grok 4
Inception: Mercury 2
53%Vocabulary53%
18wSentence Length22w
0.67Hedging0.40
2.7Bold6.6
2.7Lists2.6
0.07Emoji0.08
0.86Headings0.87
0.04Transitions0.14
Based on 21 + 23 text responses
Research
What we learned reading every model
FAQ
