GPT-5.2 Pro vs OpenAI: GPT-5.6 Terra
Compare GPT-5.2 Pro and OpenAI: GPT-5.6 Terra, both from OpenAI, context windows of 400K vs 1.1M, tested across 31 shared challenges.
Our Verdict
GPT-5.2 Pro
OpenAI: GPT-5.6 Terra
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
OpenAI: GPT-5.6 Terra is 11x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.2 Pro
Input
$21.00
Output
$168.00
OpenAI: GPT-5.6 Terra
Input
$2.50
8.4× cheaper
Output
$15.00
11× cheaper
OpenAI: GPT-5.6 Terra is cheaper on both — 8.4× input, 11× output
Writing DNA
Style Comparison
Similarity
52%
OpenAI: GPT-5.6 Terra uses 3.5x more transitions
GPT-5.2 Pro
OpenAI: GPT-5.6 Terra
62%Vocabulary57%
19wSentence Length18w
0.39Hedging0.85
8.6Bold2.8
3.8Lists4.6
0.00Emoji0.00
1.17Headings1.12
0.02Transitions0.06
Based on 10 + 27 text responses
Research
What we learned reading every model
FAQ
