Model comparison
Qwen2-72B vs Qwen3.5 Plus
Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 30.0 on the Noometry Index.
Last verified . 2 shared benchmarks.
Alibaba (Qwen)Summary
- They share 2 benchmarks with published results for both. Qwen2-72B scores higher in 0 categories and Qwen3.5 Plus in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.5 Plus leads 46.0 to 21.2.
- The biggest single-benchmark swing is GPQA Diamond: 40.8% for Qwen2-72B and 84.8% for Qwen3.5 Plus.
- Qwen2-72B has downloadable open weights; the other is API-only.
Side by side
| Qwen2-72B | Qwen3.5 Plus | |
|---|---|---|
| Provider | Alibaba (Qwen) | Alibaba (Qwen) |
| Noometry Index | 30.0 | 42.9 |
| Released | 2024-06-07 | 2026-02-16 |
| Weights | Open | Proprietary |
| Context window | — | 1M |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.40 |
| Output $ / M tokens | — | $2.40 |
| Results tracked | 26 | 15 |
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Category by category
Coding Not comparable
Qwen2-72B: 29.1 (#310), Qwen3.5 Plus: —
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| WeirdML | 11.3% | — |
| BigCodeBench Instruct | 38.5% | — |
| LMArena Coding | 1196 | — |
| BigCodeBench Complete | 54% | — |
| ALE-Bench | — | 621.92 |
Agentic & Tool Use Not comparable
Qwen2-72B: 17.0 (#146), Qwen3.5 Plus: —
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| TheAgentCompany | 1.1% | — |
| METR Time Horizons | 29.9% | — |
| Vending-Bench 2 | — | 0.54 |
Reasoning Qwen3.5 Plus leads
Qwen2-72B: 23.2 (#181), Qwen3.5 Plus: 32.8 (#74)
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| Epoch Capabilities Index | 125.28 | 146.78 |
| Chess Puzzles | — | 22% |
| LMArena Hard Prompts | 1191 | — |
| Mystery Game Puzzles | — | 17% |
| DTBench | — | 80.5% |
| LMCA | — | 36.4% |
Math Qwen3.5 Plus leads
Qwen2-72B: 30.2 (#236), Qwen3.5 Plus: 49.6 (#61)
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 86.7% |
| LMArena Math | 1235 | — |
| MATH Level 5 | 39.1% | — |
| FrontierMath (Feb 2025 set) | — | 21% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
Knowledge Qwen3.5 Plus leads
Qwen2-72B: 21.2 (#275), Qwen3.5 Plus: 46.0 (#83)
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| GPQA Diamond | 40.8% | 84.8% |
| SimpleQA Verified | — | 25.4% |
| Vectara Hallucination Rate | — | 10.7% |
| LMArena Expert | 1171 | — |
| MMLU | 82.4% | — |
Multilingual Not comparable
Qwen2-72B: 35.9 (#244), Qwen3.5 Plus: —
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| LMArena Non-English | 1176 | — |
| LMArena Chinese | 1240 | — |
| LMArena French | 1170 | — |
| LMArena German | 1151 | — |
| LMArena Japanese | 1111 | — |
| LMArena Korean | 1083 | — |
| LMArena Russian | 1169 | — |
| LMArena Spanish | 1169 | — |
Instruction Following Not comparable
Qwen2-72B: 61.7 (#241), Qwen3.5 Plus: —
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| LMArena Instruction Following | 1181 | — |
Long Context Qwen3.5 Plus leads
Qwen2-72B: 36.1 (#235), Qwen3.5 Plus: 43.0 (#113)
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
| LMArena Longer Query | 1192 | — |
Writing & Preference Not comparable
Qwen2-72B: 40.8 (#241), Qwen3.5 Plus: —
| Benchmark | Qwen2-72B | Qwen3.5 Plus |
|---|---|---|
| LMArena Text | 1203 | — |
| LMArena Creative Writing | 1181 | — |
| LMArena Multi-Turn | 1196 | — |
Frequently asked questions
Is Qwen2-72B better than Qwen3.5 Plus?
Qwen3.5 Plus is the stronger model overall, scoring 42.9 to 30.0 on the Noometry Index.
How many benchmarks do Qwen2-72B and Qwen3.5 Plus share?
2 benchmarks have published results for both models. Qwen2-72B has 26 scored results on Noometry and Qwen3.5 Plus has 15.