Grok 4.5 vs Llama 3.1 405B Instruct
As of Oct 15, 2026, Grok 4.5 leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
Grok 4.5
#14 Best recorded rank: #14 in Science, as of Oct 15, 2026.
Llama 3.1 405B Instruct
It used to be. Was SOTA in General LLM.
| Category | Grok 4.5 | Llama 3.1 405B Instruct |
|---|---|---|
| General LLM | #45 · #45 in General LLM Margin 23.93617021276596 LMArena leaderboard dataset · Oct 13, 2026 | #5 · #5 in General LLM Margin — LMArena leaderboard dataset · Sep 4, 2024 |
| Reasoning | #44 · #44 in Reasoning Margin 23.93617021276596 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 | #14 · #14 in Science Margin — Epoch AI benchmarking hub · Jul 8, 2026 | #124 · #124 in Science Margin — Epoch AI benchmarking hub · Jul 23, 2024 |
| Coding | #19 · #19 in Coding Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Agentic | #19 · #19 in Coding › Agentic Margin 95.45454545454545 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #36 · #36 in Coding › Web dev Margin 28 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #41 · #41 in Long context Margin 21.808510638297875 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Vision | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · Jul 8, 2026 | — |
| Factuality | #30 · #30 in Factuality Margin 18.023255813953483 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Abstraction (ARC) | #21 · #21 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 8, 2026 | — |
Grok 4.5: $3 per 1M blended tokens.
Llama 3.1 405B Instruct: price per 1M tokens is unset in the catalog.
Grok 4.5: closed weights.
Llama 3.1 405B Instruct: open weights.
General LLM: As of Oct 15, 2026, Llama 3.1 405B Instruct leads Grok 4.5 in General LLM at #5 against #45.
Science: As of Oct 15, 2026, Grok 4.5 leads Llama 3.1 405B Instruct in Science at #14 against #124.
Grok 4.5 · Llama 3.1 405B Instruct
Grok 4.5 or Llama 3.1 405B Instruct?
As of Oct 15, 2026, Grok 4.5 leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
Grok 4.5 or Llama 3.1 405B Instruct for General LLM?
As of Oct 15, 2026, Llama 3.1 405B Instruct leads Grok 4.5 in General LLM at #5 against #45.
Grok 4.5 or Llama 3.1 405B Instruct for Science?
As of Oct 15, 2026, Grok 4.5 leads Llama 3.1 405B Instruct in Science at #14 against #124.