GPT-4.1 Nano vs OpenAI: GPT-5.6 Terra
Compare GPT-4.1 Nano and OpenAI: GPT-5.6 Terra, both from OpenAI, context windows of 1.0M vs 1.1M, tested across 53 shared challenges.
Our Verdict
OpenAI: GPT-5.6 Terra
GPT-4.1 NanoRunner-up
No community votes yet. On paper, OpenAI: GPT-5.6 Terra has the edge — bigger model tier, newer.
GPT-4.1 Nano is 38x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-4.1 Nano
Input
$0.10
25× cheaper
Output
$0.40
38× cheaper
OpenAI: GPT-5.6 Terra
Input
$2.50
Output
$15.00
GPT-4.1 Nano is cheaper on both — 25× input, 38× output
Writing DNA
Style Comparison
Similarity
74%
GPT-4.1 Nano uses 4.0x more transitions
GPT-4.1 Nano
OpenAI: GPT-5.6 Terra
57%Vocabulary57%
25wSentence Length18w
0.72Hedging0.85
5.6Bold2.8
4.9Lists4.6
0.00Emoji0.00
0.71Headings1.12
0.22Transitions0.06
Based on 24 + 27 text responses
Research
What we learned reading every model
FAQ
