Model comparison
Qwen1.5-72B vs Qwen3.6 Flash
Qwen3.6 Flash is the stronger model overall, scoring 38.4 to 30.3 on the Noometry Index.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. Qwen1.5-72B scores higher in 0 categories and Qwen3.6 Flash in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.6 Flash leads 42.2 to 11.5.
- The biggest single-benchmark swing is GPQA Diamond: 28.8% for Qwen1.5-72B and 83.3% for Qwen3.6 Flash.
- Qwen1.5-72B has downloadable open weights; the other is API-only.
Side by side
| Qwen1.5-72B | Qwen3.6 Flash | |
|---|---|---|
| Provider | Alibaba (Qwen) | Alibaba (Qwen) |
| Noometry Index | 30.3 | 38.4 |
| Released | 2024-02-04 | 2026-04-27 |
| Weights | Open | Proprietary |
| Context window | — | 1M |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.19 |
| Output $ / M tokens | — | $1.13 |
| Results tracked | 22 | 13 |
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Category by category
Coding Not comparable
Qwen1.5-72B: 31.4 (#272), Qwen3.6 Flash: —
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| BigCodeBench Instruct | 33.2% | — |
| LMArena Coding | 1166 | — |
| BigCodeBench Complete | 40.3% | — |
| ALE-Bench | — | 326.4 |
| HumanEval+ | 59.1% | — |
| MBPP+ | 61.6% | — |
Reasoning Qwen3.6 Flash leads
Qwen1.5-72B: 21.2 (#201), Qwen3.6 Flash: 28.4 (#90)
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| SimpleBench | — | 35.2% |
| Chess Puzzles | — | 20% |
| LMArena Hard Prompts | 1148 | — |
| Mystery Game Puzzles | — | 18% |
| DTBench | — | 77.1% |
| LMCA | — | 31% |
| Epoch Capabilities Index | — | 143.26 |
Math Qwen3.6 Flash leads
Qwen1.5-72B: 30.7 (#205), Qwen3.6 Flash: 38.0 (#88)
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| FrontierMath (Tiers 1-3) | — | 22.5% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| LMArena Math | 1164 | — |
| FrontierMath (Feb 2025 set) | — | 10.3% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Qwen3.6 Flash leads
Qwen1.5-72B: 11.5 (#295), Qwen3.6 Flash: 42.2 (#90)
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| GPQA Diamond | 28.8% | 83.3% |
| SimpleQA Verified | — | 15.9% |
| LMArena Expert | 1136 | — |
Multilingual Not comparable
Qwen1.5-72B: 33.4 (#248), Qwen3.6 Flash: —
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| LMArena Non-English | 1135 | — |
| LMArena Chinese | 1186 | — |
| LMArena French | 1158 | — |
| LMArena German | 1084 | — |
| LMArena Japanese | 1061 | — |
| LMArena Korean | 1049 | — |
| LMArena Russian | 1104 | — |
| LMArena Spanish | 1110 | — |
Instruction Following Not comparable
Qwen1.5-72B: 59.6 (#251), Qwen3.6 Flash: —
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| LMArena Instruction Following | 1142 | — |
Long Context Not comparable
Qwen1.5-72B: 35.0 (#238), Qwen3.6 Flash: —
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| LMArena Longer Query | 1157 | — |
Writing & Preference Not comparable
Qwen1.5-72B: 37.4 (#253), Qwen3.6 Flash: —
| Benchmark | Qwen1.5-72B | Qwen3.6 Flash |
|---|---|---|
| LMArena Text | 1166 | — |
| LMArena Creative Writing | 1137 | — |
| LMArena Multi-Turn | 1160 | — |
Frequently asked questions
Is Qwen1.5-72B better than Qwen3.6 Flash?
Qwen3.6 Flash is the stronger model overall, scoring 38.4 to 30.3 on the Noometry Index.
How many benchmarks do Qwen1.5-72B and Qwen3.6 Flash share?
1 benchmark has published results for both models. Qwen1.5-72B has 22 scored results on Noometry and Qwen3.6 Flash has 13.