Model comparison

Qwen3.5 Plus vs Qwen3.6 Plus

Qwen3.6 Plus is the stronger model overall, scoring 47.5 to 42.9 on the Noometry Index.

Last verified . 13 shared benchmarks.

Qwen3.5 Plus Alibaba (Qwen)

42.9

Rank #106 Confirmed

Qwen3.6 Plus Alibaba (Qwen)

47.5

Rank #62 Confirmed

Summary

  • They share 13 benchmarks with published results for both. Qwen3.5 Plus scores higher in 1 category and Qwen3.6 Plus in 3 categories; 4 gaps are clear of the uncertainty.
  • The widest gap is in knowledge, where Qwen3.6 Plus leads 56.1 to 46.0.
  • The biggest single-benchmark swing is SimpleQA Verified: 25.4% for Qwen3.5 Plus and 44.1% for Qwen3.6 Plus.
  • Qwen3.5 Plus is cheaper at $0.40 / $2.40 per million input/output tokens, against $0.50 / $3 for Qwen3.6 Plus.

Side by side

Qwen3.5 Plus and Qwen3.6 Plus specifications
Qwen3.5 PlusQwen3.6 Plus
ProviderAlibaba (Qwen)Alibaba (Qwen)
Noometry Index42.947.5
Released2026-02-162026-03-31
WeightsProprietaryProprietary
Context window1M1M
Max output66K66K
Input $ / M tokens$0.40$0.50
Output $ / M tokens$2.40$3
Results tracked1537

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Category by category

Coding Not comparable

Qwen3.5 Plus: —, Qwen3.6 Plus: 40.8 (#130)

Coding benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
ALE-Bench621.92670.15
SWE-bench Verified—57.9%
LMArena WebDev—1461
SciCode—40.7%
LMArena Coding—1467

Agentic & Tool Use Not comparable

Qwen3.5 Plus: —, Qwen3.6 Plus: —

Agentic & Tool Use benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
Vending-Bench 20.545,115

Reasoning Qwen3.5 Plus leads

Qwen3.5 Plus: 32.8 (#74), Qwen3.6 Plus: 29.3 (#93)

Reasoning benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
Chess Puzzles22%17%
Mystery Game Puzzles17%12%
DTBench80.5%81.9%
LMCA36.4%33.1%
Epoch Capabilities Index146.78147.65
NYT Connections (extended)—60.3%
CritPt—2.9%
Thematic Generalization—59.5%
LMArena Hard Prompts—1449

Math Qwen3.6 Plus leads

Qwen3.5 Plus: 49.6 (#61), Qwen3.6 Plus: 51.8 (#54)

Math benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
OTIS Mock AIME 2024-202586.7%93.3%
FrontierMath (Feb 2025 set)21%26.2%
FrontierMath Tier 4 (v1)2.1%8.3%
FrontierMath (Tiers 1-3)—38.2%
LMArena Math—1450

Knowledge Qwen3.6 Plus leads

Qwen3.5 Plus: 46.0 (#83), Qwen3.6 Plus: 56.1 (#45)

Knowledge benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
GPQA Diamond84.8%88.4%
SimpleQA Verified25.4%44.1%
Vectara Hallucination Rate10.7%—
LMArena Expert—1454

Multilingual Not comparable

Qwen3.5 Plus: —, Qwen3.6 Plus: 53.3 (#70)

Multilingual benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
LMArena Non-English—1424
LMArena Chinese—1477
LMArena French—1455
LMArena German—1452
LMArena Japanese—1389
LMArena Korean—1379
LMArena Russian—1434
LMArena Spanish—1432

Instruction Following Not comparable

Qwen3.5 Plus: —, Qwen3.6 Plus: 75.0 (#74)

Instruction Following benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
LMArena Instruction Following—1425

Long Context Qwen3.6 Plus leads

Qwen3.5 Plus: 43.0 (#113), Qwen3.6 Plus: 45.2 (#49)

Long Context benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
CL-bench19.8%20.3%
CL-bench Life12.4%—
LMArena Longer Query—1439

Writing & Preference Not comparable

Qwen3.5 Plus: —, Qwen3.6 Plus: 62.2 (#82)

Writing & Preference benchmarks
BenchmarkQwen3.5 PlusQwen3.6 Plus
LMArena Text—1437
LMArena Creative Writing—1404
LMArena Multi-Turn—1438

Frequently asked questions

Is Qwen3.5 Plus better than Qwen3.6 Plus?

Qwen3.6 Plus is the stronger model overall, scoring 47.5 to 42.9 on the Noometry Index.

Which is cheaper, Qwen3.5 Plus or Qwen3.6 Plus?

Qwen3.5 Plus is cheaper. It lists at $0.40 per million input tokens and $2.40 per million output tokens; Qwen3.6 Plus lists at $0.50 and $3.

Which has the bigger context window?

Both accept 1M tokens.

How many benchmarks do Qwen3.5 Plus and Qwen3.6 Plus share?

13 benchmarks have published results for both models. Qwen3.5 Plus has 15 scored results on Noometry and Qwen3.6 Plus has 37.

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