Llama 3.1 405B Instruct vs Qwen3 5 Flash
As of Oct 14, 2026, Llama 3.1 405B Instruct leads Qwen3 5 Flash in 1 of 2 shared categories: General LLM.
Llama 3.1 405B Instruct
It used to be. Was SOTA in General LLM.
Qwen3 5 Flash
#66 Best recorded rank: #66 in Science, as of Oct 14, 2026.
| Category | Llama 3.1 405B Instruct | Qwen3 5 Flash |
|---|---|---|
| General LLM | #3 · #3 in General LLM Margin — LMArena leaderboard dataset · Sep 4, 2024 | #119 · #119 in General LLM Margin 80.95238095238095 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 4, 2024 | #121 · #121 in Reasoning Margin 83.56164383561644 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #124 · #124 in Science Margin — Epoch AI benchmarking hub · Jul 23, 2024 | #66 · #66 in Science Margin — Epoch AI benchmarking hub · Feb 25, 2026 |
| Coding | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | — | #101 · #101 in Coding › Web dev Margin 93.45794392523365 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | — | #122 · #122 in Long context Margin 82.99319727891157 LMArena leaderboard dataset · Oct 13, 2026 |
| Factuality | — | #101 · #101 in Factuality Margin 76.11940298507463 LMArena leaderboard dataset · Oct 13, 2026 |
Llama 3.1 405B Instruct: price per 1M tokens is unset in the catalog.
Qwen3 5 Flash: price per 1M tokens is unset in the catalog.
Llama 3.1 405B Instruct: open weights.
Qwen3 5 Flash: closed weights.
General LLM: As of Oct 14, 2026, Llama 3.1 405B Instruct leads Qwen3 5 Flash in General LLM at #3 against #119.
Science: As of Oct 14, 2026, Qwen3 5 Flash leads Llama 3.1 405B Instruct in Science at #66 against #124.
Llama 3.1 405B Instruct · Qwen3 5 Flash
Llama 3.1 405B Instruct or Qwen3 5 Flash?
As of Oct 14, 2026, Llama 3.1 405B Instruct leads Qwen3 5 Flash in 1 of 2 shared categories: General LLM.
Llama 3.1 405B Instruct or Qwen3 5 Flash for General LLM?
As of Oct 14, 2026, Llama 3.1 405B Instruct leads Qwen3 5 Flash in General LLM at #3 against #119.
Llama 3.1 405B Instruct or Qwen3 5 Flash for Science?
As of Oct 14, 2026, Qwen3 5 Flash leads Llama 3.1 405B Instruct in Science at #66 against #124.