Claude Sonnet 5.5 vs Qwen3 5 27B
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in 5 of 5 shared categories: General LLM, Reasoning, 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 5 27B
#84 Best current rank: #84 in Coding › Web dev, as of Oct 14, 2026.
| Category | Claude Sonnet 5.5 | Qwen3 5 27B |
|---|---|---|
| General LLM | #27 · #27 in General LLM Margin 18.367346938775512 LMArena leaderboard dataset · Oct 13, 2026 | #109 · #109 in General LLM Margin 74.14965986394557 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #18 · #18 in Reasoning Margin 13.013698630136986 LMArena leaderboard dataset · Oct 13, 2026 | #105 · #105 in Reasoning Margin 72.6027397260274 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 | — |
| Coding | #1 · Co-SOTA · Coding Margin 0 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 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 | #84 · #84 in Coding › Web dev Margin 77.57009345794393 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #11 · #11 in Long context Margin 7.482993197278915 LMArena leaderboard dataset · Oct 13, 2026 | #96 · #96 in Long context Margin 65.3061224489796 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 28, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #16 · #16 in Factuality Margin 12.68656716417911 LMArena leaderboard dataset · Oct 13, 2026 | #94 · #94 in Factuality Margin 70.8955223880597 LMArena leaderboard dataset · Oct 13, 2026 |
Claude Sonnet 5.5: $4.000000000000001 per 1M blended tokens.
Qwen3 5 27B: $0.845 per 1M blended tokens.
Claude Sonnet 5.5: closed weights.
Qwen3 5 27B: open weights.
General LLM: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in General LLM at #27 against #109.
Reasoning: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in Reasoning at #18 against #105.
Coding › Web dev: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in Coding › Web dev at #3 against #84.
Long context: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in Long context at #11 against #96.
Factuality: As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in Factuality at #16 against #94.
Claude Sonnet 5.5 · Qwen3 5 27B
Claude Sonnet 5.5 or Qwen3 5 27B?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in 5 of 5 shared categories: General LLM, Reasoning, Coding › Web dev, Long context, and Factuality.
Claude Sonnet 5.5 or Qwen3 5 27B for General LLM?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in General LLM at #27 against #109.
Claude Sonnet 5.5 or Qwen3 5 27B for Reasoning?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in Reasoning at #18 against #105.
Claude Sonnet 5.5 or Qwen3 5 27B for Coding › Web dev?
As of Oct 14, 2026, Claude Sonnet 5.5 leads Qwen3 5 27B in Coding › Web dev at #3 against #84.