Model comparison
Claude Sonnet 4.5 vs Qwen3.6 Plus
Qwen3.6 Plus is the stronger model overall, scoring 47.5 to 44.1 on the Noometry Index.
Last verified . 35 shared benchmarks.
Alibaba (Qwen)Summary
- They share 35 benchmarks with published results for both. Claude Sonnet 4.5 scores higher in 4 categories and Qwen3.6 Plus in 4 categories; 5 gaps are clear of the uncertainty.
- The widest gap is in math, where Qwen3.6 Plus leads 51.8 to 32.3.
- The biggest single-benchmark swing is NYT Connections (extended): 37.3% for Claude Sonnet 4.5 and 60.3% for Qwen3.6 Plus.
- Qwen3.6 Plus is cheaper at $0.50 / $3 per million input/output tokens, against $3 / $15 for Claude Sonnet 4.5.
- Qwen3.6 Plus accepts more context: 1M tokens versus 200K.
Side by side
| Claude Sonnet 4.5 | Qwen3.6 Plus | |
|---|---|---|
| Provider | Anthropic | Alibaba (Qwen) |
| Noometry Index | 44.1 | 47.5 |
| Released | 2025-09-29 | 2026-03-31 |
| Weights | Proprietary | Proprietary |
| Context window | 200K | 1M |
| Max output | 64K | 66K |
| Input $ / M tokens | $3 | $0.50 |
| Output $ / M tokens | $15 | $3 |
| Results tracked | 73 | 37 |
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Category by category
Coding Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 47.3 (#61), Qwen3.6 Plus: 40.8 (#130)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| SWE-bench Verified | 71.3% | 57.9% |
| LMArena WebDev | 1393 | 1461 |
| SciCode | 44.7% | 40.7% |
| LMArena Coding | 1489 | 1467 |
| ALE-Bench | 796.15 | 670.15 |
| SWE-bench Verified (bash only) | 71.4% | — |
| SWE-bench Multilingual | 67% | — |
| GSO | 14.7% | — |
| WeirdML | 47.7% | — |
| AlgoTune | 1.52 | — |
Agentic & Tool Use Not comparable
Claude Sonnet 4.5: 38.3 (#32), Qwen3.6 Plus: —
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| Vending-Bench 2 | 3,839 | 5,115 |
| Terminal-Bench | 46.5% | — |
| Berkeley Function Calling Leaderboard | 73.2% | — |
| GDPval | 42.5% | — |
| Remote Labor Index | 2.1% | — |
| τ²-bench Airline | 72% | — |
| τ²-bench Banking | 25.3% | — |
| τ²-bench Retail | 72.4% | — |
| τ²-bench Telecom | 84.9% | — |
| Cybench | 60% | — |
| DeepResearch Bench | 52.6% | — |
| OSWorld | 62.9% | — |
| LMArena Search | 1159 | — |
| METR Time Horizons | 67.4% | — |
Reasoning Qwen3.6 Plus leads
Claude Sonnet 4.5: 26.9 (#125), Qwen3.6 Plus: 29.3 (#93)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| NYT Connections (extended) | 37.3% | 60.3% |
| CritPt | 1.1% | 2.9% |
| Chess Puzzles | 12% | 17% |
| LMArena Hard Prompts | 1462 | 1449 |
| Mystery Game Puzzles | 17% | 12% |
| DTBench | 83.2% | 81.9% |
| LMCA | 38.8% | 33.1% |
| Epoch Capabilities Index | 146.84 | 147.65 |
| ARC-AGI-2 | 13.6% | — |
| SimpleBench | 54.3% | — |
| Kagi LLM Benchmark | 57.9% | — |
| ARC-AGI-1 | 63.7% | — |
| EnigmaEval | 6% | — |
| Thematic Generalization | — | 59.5% |
| EBR-Bench | 2.4% | — |
| ForecastBench | 61.9 | — |
Math Qwen3.6 Plus leads
Claude Sonnet 4.5: 32.3 (#216), Qwen3.6 Plus: 51.8 (#54)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| FrontierMath (Tiers 1-3) | 23.9% | 38.2% |
| OTIS Mock AIME 2024-2025 | 77.8% | 93.3% |
| LMArena Math | 1449 | 1450 |
| FrontierMath (Feb 2025 set) | 15.2% | 26.2% |
| FrontierMath Tier 4 (v1) | 4.2% | 8.3% |
| FrontierMath Tier 4 | 2.4% | — |
| ProofBench | 19% | — |
| Omni-MATH | 55.3% | — |
| MATH Level 5 | 97.7% | — |
Knowledge Qwen3.6 Plus leads
Claude Sonnet 4.5: 48.4 (#76), Qwen3.6 Plus: 56.1 (#45)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| GPQA Diamond | 82.3% | 88.4% |
| SimpleQA Verified | 30.7% | 44.1% |
| LMArena Expert | 1482 | 1454 |
| Humanity's Last Exam | 13.7% | — |
| MMLU-Pro | 86.9% | — |
| Vectara Hallucination Rate | 12% | — |
| GPQA (HELM) | 68.6% | — |
Multimodal Not comparable
Claude Sonnet 4.5: 34.8 (#89), Qwen3.6 Plus: —
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| VPCT | 39.8% | — |
| LMArena Document | 1450 | — |
Multilingual Too close to call
Claude Sonnet 4.5: 53.4 (#69), Qwen3.6 Plus: 53.3 (#70)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| LMArena Non-English | 1425 | 1424 |
| LMArena Chinese | 1459 | 1477 |
| LMArena French | 1458 | 1455 |
| LMArena German | 1427 | 1452 |
| LMArena Japanese | 1390 | 1389 |
| LMArena Korean | 1403 | 1379 |
| LMArena Russian | 1437 | 1434 |
| LMArena Spanish | 1457 | 1432 |
Instruction Following Too close to call
Claude Sonnet 4.5: 75.0 (#78), Qwen3.6 Plus: 75.0 (#74)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| LMArena Instruction Following | 1459 | 1425 |
| IFEval | 85% | — |
Long Context Too close to call
Claude Sonnet 4.5: 45.2 (#46), Qwen3.6 Plus: 45.2 (#49)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| LMArena Longer Query | 1476 | 1439 |
| CL-bench | — | 20.3% |
Writing & Preference Claude Sonnet 4.5 leads
Claude Sonnet 4.5: 66.5 (#34), Qwen3.6 Plus: 62.2 (#82)
| Benchmark | Claude Sonnet 4.5 | Qwen3.6 Plus |
|---|---|---|
| LMArena Text | 1439 | 1437 |
| LMArena Creative Writing | 1442 | 1404 |
| LMArena Multi-Turn | 1465 | 1438 |
| EQ-Bench Creative Writing | 1678 | — |
| WildBench | 85.4% | — |
Frequently asked questions
Is Claude Sonnet 4.5 better than Qwen3.6 Plus?
Qwen3.6 Plus is the stronger model overall, scoring 47.5 to 44.1 on the Noometry Index.
Which is cheaper, Claude Sonnet 4.5 or Qwen3.6 Plus?
Qwen3.6 Plus is cheaper. It lists at $0.50 per million input tokens and $3 per million output tokens; Claude Sonnet 4.5 lists at $3 and $15.
Is Claude Sonnet 4.5 or Qwen3.6 Plus better for coding?
Claude Sonnet 4.5 scores higher on coding benchmarks: 47.3 versus 40.8 in the Noometry coding category.
Which has the bigger context window?
Qwen3.6 Plus does, with 1M tokens against 200K.
How many benchmarks do Claude Sonnet 4.5 and Qwen3.6 Plus share?
35 benchmarks have published results for both models. Claude Sonnet 4.5 has 73 scored results on Noometry and Qwen3.6 Plus has 37.