GPT-5.4 vs OpenAI: GPT-5.6 Terra
Compare GPT-5.4 and OpenAI: GPT-5.6 Terra, both from OpenAI, context windows of 1.1M vs 1.1M, tested across 53 shared challenges.
Our Verdict
GPT-5.4
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.
Too close to call
API pricing
Cost per 1M tokens
GPT-5.4
Input
$2.50
Output
$15.00
OpenAI: GPT-5.6 Terra
Input
$2.50
Output
$15.00
Writing DNA
Style Comparison
Similarity
82%
OpenAI: GPT-5.6 Terra uses 3.1x more transitions
GPT-5.4
OpenAI: GPT-5.6 Terra
54%Vocabulary57%
28wSentence Length18w
0.69Hedging0.85
4.1Bold2.8
8.1Lists4.6
0.00Emoji0.00
1.84Headings1.12
0.02Transitions0.06
Based on 22 + 27 text responses
Research
What we learned reading every model
FAQ
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