Claude Sonnet 5.5 vs Qwen3 6 Plus
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5
Yes. SOTA in co-SOTA in Coding, co-SOTA in Coding › Agentic and co-SOTA in Vision.
Qwen3 6 Plus
#43 Best recorded rank: #43 in Science, as of Oct 14, 2026.
| Category | Claude Sonnet 5.5 | Qwen3 6 Plus |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #64 · #64 in General LLM Margin 43.53741496598639 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #60 · #60 in Reasoning Margin 41.78082191780822 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #4 · #4 in Math Margin 6.666666666666671 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #3 · #3 in Science Margin — Epoch AI benchmarking hub · Sep 28, 2026 | #43 · #43 in Science Margin — Epoch AI benchmarking hub · Mar 31, 2026 |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — Epoch AI benchmarking hub · Mar 31, 2026 |
| Coding › Agentic | #1 · Co-SOTA · Coding › Agentic Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #3 · Near-SOTA · Coding › Web dev Margin 1.8691588785046775 LMArena leaderboard dataset · Oct 13, 2026 | #56 · #56 in Coding › Web dev Margin 51.401869158878505 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #59 · #59 in Long context Margin 40.136054421768705 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | — |
| Factuality | #16 · #16 in Factuality Margin 12.68656716417911 LMArena leaderboard dataset · Oct 13, 2026 | #69 · #69 in Factuality Margin 52.23880597014925 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Qwen3 6 Plus: $0.73125 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
Qwen3 6 Plus: closed weights.
General LLM: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in General LLM at #27 against #64.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in Reasoning at #18 against #60.
Science: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in Science at #3 against #43.
Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in Coding › Web dev at #3 against #56.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in Long context at #11 against #59.
Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in Factuality at #16 against #69.
Claude Sonnet 5.5 · Qwen3 6 Plus
Claude Sonnet 5.5 or Qwen3 6 Plus?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in 6 of 6 shared categories: General LLM, Reasoning, Science, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5 or Qwen3 6 Plus for General LLM?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in General LLM at #27 against #64.
Claude Sonnet 5.5 or Qwen3 6 Plus for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in Reasoning at #18 against #60.
Claude Sonnet 5.5 or Qwen3 6 Plus for Science?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 6 Plus in Science at #3 against #43.