GPT-5.2 vs Inception: Mercury
Compare GPT-5.2 by OpenAI against Inception: Mercury by Inception, context windows of 400K vs 32K, tested across 53 shared challenges.
Our Verdict
GPT-5.2
Inception: MercuryRunner-up
No community votes yet. On paper, GPT-5.2 has the edge — bigger model tier, newer, bigger context window, major provider backing.
Slight edge
API pricing
Cost per 1M tokens
GPT-5.2
Input
$1.75
5.7× cheaper
Output
$14.00
Inception: Mercury
Input
$10.00
Output
$10.00
1.4× cheaper
GPT-5.2 wins input (5.7× cheaper)·Inception: Mercury wins output (1.4× cheaper)
Writing DNA
Style Comparison
Similarity
49%
GPT-5.2 uses 9.3x more transitions
GPT-5.2
Inception: Mercury
64%Vocabulary55%
16wSentence Length40w
0.34Hedging0.39
9.4Bold4.9
3.9Lists3.8
0.06Emoji0.04
0.89Headings1.04
0.31Transitions0.03
Based on 15 + 17 text responses
Research
What we learned reading every model
FAQ
