OpenAI: GPT-5.6 Luna vs NVIDIA: Nemotron 3 Ultra
Compare OpenAI: GPT-5.6 Luna by OpenAI against NVIDIA: Nemotron 3 Ultra by NVIDIA, in 2 community votes, openai: gpt-5.6 luna wins 100% of head-to-head duels, context windows of 1.1M vs 1.0M, tested across 54 shared challenges.
Our Verdict
OpenAI: GPT-5.6 LunaWinner
NVIDIA: Nemotron 3 UltraRunner-up
Pick OpenAI: GPT-5.6 Luna. In 2 blind votes, OpenAI: GPT-5.6 Luna wins 100% of the time. That's not luck.
Clear winner
API pricing
Cost per 1M tokens
OpenAI: GPT-5.6 Luna
Input
$1.00
Output
$6.00
NVIDIA: Nemotron 3 Ultra
Input
$0.000
Output
$0.000
Writing DNA
Style Comparison
Similarity
26%
NVIDIA: Nemotron 3 Ultra uses 13.4x more emoji
OpenAI: GPT-5.6 Luna
NVIDIA: Nemotron 3 Ultra
59%Vocabulary59%
19wSentence Length16w
0.84Hedging0.26
2.7Bold7.7
4.5Lists2.7
0.00Emoji0.13
1.20Headings0.75
0.10Transitions0.04
Based on 27 + 26 text responses
Research
What we learned reading every model
FAQ
