GPT-4.5 Preview vs Llama 3.1 405B Instruct
As of Oct 14, 2026, GPT-4.5 Preview leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
GPT-4.5 Preview
It used to be. Was SOTA in General LLM.
Llama 3.1 405B Instruct
It used to be. Was SOTA in General LLM.
| Category | GPT-4.5 Preview | Llama 3.1 405B Instruct |
|---|---|---|
| General LLM | #62 · Was SOTA · General LLM Margin 42.17687074829932 LMArena leaderboard dataset · Oct 13, 2026 | #3 · #3 in General LLM Margin — LMArena leaderboard dataset · Sep 4, 2024 |
| Reasoning | #93 · Was SOTA · Reasoning Margin 64.38356164383562 LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 4, 2024 |
| Math | #38 · #38 in Math Margin 84.44444444444444 Epoch AI benchmarking hub · Feb 27, 2025 | — |
| Science | #92 · #92 in Science Margin — Epoch AI benchmarking hub · Feb 27, 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 | #76 · Was SOTA · Long context Margin 51.70068027210884 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Abstraction (ARC) | #83 · #83 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Feb 27, 2025 | — |
GPT-4.5 Preview: price per 1M tokens is unset in the catalog.
Llama 3.1 405B Instruct: price per 1M tokens is unset in the catalog.
GPT-4.5 Preview: closed weights.
Llama 3.1 405B Instruct: open weights.
General LLM: As of Oct 14, 2026, Llama 3.1 405B Instruct leads GPT-4.5 Preview in General LLM at #3 against #62.
Science: As of Oct 14, 2026, GPT-4.5 Preview leads Llama 3.1 405B Instruct in Science at #92 against #124.
GPT-4.5 Preview · Llama 3.1 405B Instruct
GPT-4.5 Preview or Llama 3.1 405B Instruct?
As of Oct 14, 2026, GPT-4.5 Preview leads Llama 3.1 405B Instruct in 1 of 2 shared categories: Science.
GPT-4.5 Preview or Llama 3.1 405B Instruct for General LLM?
As of Oct 14, 2026, Llama 3.1 405B Instruct leads GPT-4.5 Preview in General LLM at #3 against #62.
GPT-4.5 Preview or Llama 3.1 405B Instruct for Science?
As of Oct 14, 2026, GPT-4.5 Preview leads Llama 3.1 405B Instruct in Science at #92 against #124.