OpenAI: GPT-5.6 Luna vs OpenAI o4-mini
Compare OpenAI: GPT-5.6 Luna and OpenAI o4-mini, both from OpenAI, tested across 53 shared challenges.
Our Verdict
OpenAI: GPT-5.6 Luna
OpenAI o4-mini
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
OpenAI: GPT-5.6 Luna
Input
$1.00
1.1× cheaper
Output
$6.00
OpenAI o4-mini
Input
$1.10
Output
$4.40
1.4× cheaper
OpenAI: GPT-5.6 Luna wins input (1.1× cheaper)·OpenAI o4-mini wins output (1.4× cheaper)
Writing DNA
Style Comparison
Similarity
58%
OpenAI: GPT-5.6 Luna uses 275.0x more bold
OpenAI: GPT-5.6 Luna
OpenAI o4-mini
59%Vocabulary73%
19wSentence Length15w
0.84Hedging0.18
2.7Bold0.0
4.5Lists2.1
0.00Emoji0.00
1.20Headings0.00
0.10Transitions0.02
Based on 27 + 10 text responses
Research
What we learned reading every model
FAQ
