Code Llama 70B and GPT-5.6 Luna don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Code Llama 70B shipped 879 days before GPT-5.6 Luna, so benchmark comparisons should account for the intervening progress.

Code Llama 70B is open weight, while GPT-5.6 Luna is proprietary.

Direct benchmark comparisons are unavailable — Code Llama 70B and GPT-5.6 Luna don't publish scores on any of the same benchmarks.