Claude Sonnet 4 vs Llama 3.1 405B Instruct
As of Oct 14, 2026, Claude Sonnet 4 leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
Claude Sonnet 4
#35 Best current rank: #35 in Math, as of Oct 14, 2026.
Llama 3.1 405B Instruct
It used to be. Was SOTA in General LLM.
| Category | Claude Sonnet 4 | Llama 3.1 405B Instruct |
|---|---|---|
| General LLM | #126 · #126 in General LLM Margin 85.71428571428571 LMArena leaderboard dataset · Oct 13, 2026 | #3 · #3 in General LLM Margin — LMArena leaderboard dataset · Sep 4, 2024 |
| Reasoning | #115 · #115 in Reasoning Margin 79.45205479452055 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 4, 2024 |
| Math | #35 · #35 in Math Margin 77.77777777777777 Epoch AI benchmarking hub · May 22, 2025 | — |
| Science | #97 · #97 in Science Margin — Epoch AI benchmarking hub · May 22, 2025 | #124 · #124 in Science Margin — Epoch AI benchmarking hub · Jul 23, 2024 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #94 · #94 in Long context Margin 63.945578231292515 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Abstraction (ARC) | #67 · #67 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 22, 2025 | — |
Claude Sonnet 4: $6 per 1M blended tokens.
Llama 3.1 405B Instruct: price per 1M tokens is unset in the catalog.
Claude Sonnet 4: closed weights.
Llama 3.1 405B Instruct: open weights.
General LLM: As of Oct 14, 2026, Llama 3.1 405B Instruct leads Claude Sonnet 4 in General LLM at #3 against #126.
Science: As of Oct 14, 2026, Claude Sonnet 4 leads Llama 3.1 405B Instruct in Science at #97 against #124.
Claude Sonnet 4 · Llama 3.1 405B Instruct
Claude Sonnet 4 or Llama 3.1 405B Instruct?
As of Oct 14, 2026, Claude Sonnet 4 leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
Claude Sonnet 4 or Llama 3.1 405B Instruct for General LLM?
As of Oct 14, 2026, Llama 3.1 405B Instruct leads Claude Sonnet 4 in General LLM at #3 against #126.
Claude Sonnet 4 or Llama 3.1 405B Instruct for Science?
As of Oct 14, 2026, Claude Sonnet 4 leads Llama 3.1 405B Instruct in Science at #97 against #124.