OpenAI: GPT-5.6 Luna Pro vs Llama 3.1 70B (Instruct)
Compare OpenAI: GPT-5.6 Luna Pro by OpenAI against Llama 3.1 70B (Instruct) by Meta AI, context windows of 1.1M vs 128K, tested across 52 shared challenges.
Our Verdict
OpenAI: GPT-5.6 Luna Pro
Llama 3.1 70B (Instruct)
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Llama 3.1 70B (Instruct) is 7.6x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
OpenAI: GPT-5.6 Luna Pro
Input
$1.00
Output
$6.00
Llama 3.1 70B (Instruct)
Input
$0.59
1.7× cheaper
Output
$0.79
7.6× cheaper
Llama 3.1 70B (Instruct) is cheaper on both — 1.7× input, 7.6× output
Writing DNA
Style Comparison
Similarity
62%
OpenAI: GPT-5.6 Luna Pro uses 53.7x more emoji
OpenAI: GPT-5.6 Luna Pro
Llama 3.1 70B (Instruct)
58%Vocabulary51%
18wSentence Length18w
0.81Hedging0.46
2.9Bold3.4
5.1Lists5.6
0.54Emoji0.00
1.10Headings0.00
0.09Transitions0.06
Based on 27 + 15 text responses
Research
What we learned reading every model
FAQ
