Claude Opus 4.6 vs Qwen3 5 Flash
As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
Qwen3 5 Flash
#66 Best recorded rank: #66 in Science, as of Oct 14, 2026.
| Category | Claude Opus 4.6 | Qwen3 5 Flash |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.7210884353741562 LMArena leaderboard dataset · Oct 13, 2026 | #119 · #119 in General LLM Margin 80.95238095238095 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 2.0547945205479436 LMArena leaderboard dataset · Oct 13, 2026 | #121 · #121 in Reasoning Margin 83.56164383561644 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #66 · #66 in Science Margin — Epoch AI benchmarking hub · Feb 25, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Feb 5, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #35 · Was SOTA · Coding › Web dev Margin 31.775700934579433 LMArena leaderboard dataset · Oct 13, 2026 | #101 · #101 in Coding › Web dev Margin 93.45794392523365 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.6802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #122 · #122 in Long context Margin 82.99319727891157 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #3 · Near-SOTA · Factuality Margin 2.9850746268656536 LMArena leaderboard dataset · Oct 13, 2026 | #101 · #101 in Factuality Margin 76.11940298507463 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
Qwen3 5 Flash: price per 1M tokens is unset in the catalog.
Claude Opus 4.6: closed weights.
Qwen3 5 Flash: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in General LLM at #4 against #119.
Reasoning: As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in Reasoning at #2 against #121.
Science: As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in Science at #32 against #66.
Coding › Web dev: As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in Coding › Web dev at #35 against #101.
Long context: As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in Long context at #2 against #122.
Factuality: As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in Factuality at #3 against #101.
Claude Opus 4.6 · Qwen3 5 Flash
Claude Opus 4.6 or Qwen3 5 Flash?
As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Opus 4.6 or Qwen3 5 Flash for General LLM?
As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in General LLM at #4 against #119.
Claude Opus 4.6 or Qwen3 5 Flash for Reasoning?
As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in Reasoning at #2 against #121.
Claude Opus 4.6 or Qwen3 5 Flash for Science?
As of Oct 14, 2026, Claude Opus 4.6 leads Qwen3 5 Flash in Science at #32 against #66.