Llama 3.1 70B vs GPT-5.6 Luna
Head-to-head technical comparison of intelligence, capabilities, and API pricing.
Llama 3.1 70B
Meta
AI Mastery Index82.5
LMSYS Arena1240
Technical (MMLU-Pro)86%
Cost per 1M Tokens$0
GPT-5.6 Luna
OpenAI
AI Mastery Index92
LMSYS Arena1455
Technical (MMLU-Pro)92%
Cost per 1M Tokens$0.2
Architect's Verdict
When comparing Llama 3.1 70B and GPT-5.6 Luna, GPT-5.6 Luna edges out in overall capabilities according to the AI Mastery Index. However, for cost-sensitive workloads, Llama 3.1 70B offers a more economical API at $0 per 1M tokens. Your choice should depend heavily on whether you prioritize raw reasoning (MMLU) or scalable deployment economics.