Llama 3.1 405B Instruct vs O4 Mini
As of Oct 15, 2026, Llama 3.1 405B Instruct leads O4 Mini in 1 of 2 shared categories: General LLM.
Llama 3.1 405B Instruct
It used to be. Was SOTA in General LLM.
O4 Mini
It used to be. Was SOTA in Math.
| Category | Llama 3.1 405B Instruct | O4 Mini |
|---|---|---|
| General LLM | #5 · #5 in General LLM Margin — LMArena leaderboard dataset · Sep 4, 2024 | #162 · #162 in General LLM Margin 86.17021276595744 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 4, 2024 | #168 · #168 in Reasoning Margin 89.8936170212766 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | — | #23 · Was SOTA · Math Margin 48.888888888888886 Epoch AI benchmarking hub · Apr 16, 2025 |
| Science | #124 · #124 in Science Margin — Epoch AI benchmarking hub · Jul 23, 2024 | #70 · #70 in Science Margin — Epoch AI benchmarking hub · Apr 16, 2025 |
| Coding | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | — | #— · Not enough data Margin — LMArena leaderboard dataset · Jul 7, 2025 |
| Vision | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | — | #160 · #160 in Factuality Margin 93.6046511627907 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #39 · #39 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Apr 16, 2025 |
Llama 3.1 405B Instruct: price per 1M tokens is unset in the catalog.
O4 Mini: $1.9250000000000003 per 1M blended tokens.
Llama 3.1 405B Instruct: open weights.
O4 Mini: closed weights.
General LLM: As of Oct 15, 2026, Llama 3.1 405B Instruct leads O4 Mini in General LLM at #5 against #162.
Science: As of Oct 15, 2026, O4 Mini leads Llama 3.1 405B Instruct in Science at #70 against #124.
Llama 3.1 405B Instruct · O4 Mini
Llama 3.1 405B Instruct or O4 Mini?
As of Oct 15, 2026, Llama 3.1 405B Instruct leads O4 Mini in 1 of 2 shared categories: General LLM.
Llama 3.1 405B Instruct or O4 Mini for General LLM?
As of Oct 15, 2026, Llama 3.1 405B Instruct leads O4 Mini in General LLM at #5 against #162.
Llama 3.1 405B Instruct or O4 Mini for Science?
As of Oct 15, 2026, O4 Mini leads Llama 3.1 405B Instruct in Science at #70 against #124.