GPT-6 Luna vs Llama 3.1 405B Instruct
As of Oct 15, 2026, GPT-6 Luna leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
GPT-6 Luna
Yes. Yes on Coding (best per dollar); Coding › Agentic (best per dollar). Not the overall leader.
Llama 3.1 405B Instruct
It used to be. Was SOTA in General LLM.
| Category | GPT-6 Luna | Llama 3.1 405B Instruct |
|---|---|---|
| General LLM | #82 · #82 in General LLM Margin 43.61702127659574 LMArena leaderboard dataset · Oct 13, 2026 | #5 · #5 in General LLM Margin — LMArena leaderboard dataset · Sep 4, 2024 |
| Reasoning | #76 · #76 in Reasoning Margin 40.95744680851064 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 4, 2024 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | — |
| Science | #33 · #33 in Science Margin — Epoch AI benchmarking hub · Sep 22, 2026 | #124 · #124 in Science Margin — Epoch AI benchmarking hub · Jul 23, 2024 |
| Coding | #17 · #17 in Coding Margin 81.81818181818181 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Agentic | #17 · #17 in Coding › Agentic Margin 81.81818181818181 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #31 · #31 in Coding › Web dev Margin 24 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #75 · #75 in Long context Margin 39.89361702127659 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Vision | #17 · #17 in Vision Margin 47.36842105263158 Epoch AI benchmarking hub · Sep 22, 2026 | — |
| Factuality | #45 · #45 in Factuality Margin 26.74418604651163 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #22 · #22 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 22, 2026 | — |
GPT-6 Luna: $0.19999999999999998 per 1M blended tokens.
Llama 3.1 405B Instruct: price per 1M tokens is unset in the catalog.
GPT-6 Luna: closed weights.
Llama 3.1 405B Instruct: open weights.
General LLM: As of Oct 15, 2026, Llama 3.1 405B Instruct leads GPT-6 Luna in General LLM at #5 against #82.
Science: As of Oct 15, 2026, GPT-6 Luna leads Llama 3.1 405B Instruct in Science at #33 against #124.
GPT-6 Luna · Llama 3.1 405B Instruct
GPT-6 Luna or Llama 3.1 405B Instruct?
As of Oct 15, 2026, GPT-6 Luna leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
GPT-6 Luna or Llama 3.1 405B Instruct for General LLM?
As of Oct 15, 2026, Llama 3.1 405B Instruct leads GPT-6 Luna in General LLM at #5 against #82.
GPT-6 Luna or Llama 3.1 405B Instruct for Science?
As of Oct 15, 2026, GPT-6 Luna leads Llama 3.1 405B Instruct in Science at #33 against #124.