Model comparison
Qwen1.5-32B vs Qwen3.5-Flash
Qwen3.5-Flash is the stronger model overall, scoring 42.3 to 30.0 on the Noometry Index.
Last verified . 18 shared benchmarks.
Summary
- They share 18 benchmarks with published results for both. Qwen1.5-32B scores higher in 0 categories and Qwen3.5-Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.5-Flash leads 43.2 to 13.5.
- The biggest single-benchmark swing is GPQA Diamond: 30.7% for Qwen1.5-32B and 82.3% for Qwen3.5-Flash.
- Qwen1.5-32B has downloadable open weights; the other is API-only.
Side by side
| Qwen1.5-32B | Qwen3.5-Flash | |
|---|---|---|
| Provider | Alibaba (Qwen) | Alibaba (Qwen) |
| Noometry Index | 30.0 | 42.3 |
| Released | 2024-02-04 | 2026-02-23 |
| Weights | Open | Proprietary |
| Context window | — | 1M |
| Max output | — | 66K |
| Input $ / M tokens | — | $0.10 |
| Output $ / M tokens | — | $0.40 |
| Results tracked | 21 | 32 |
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Category by category
Coding Qwen3.5-Flash leads
Qwen1.5-32B: 31.1 (#278), Qwen3.5-Flash: 33.9 (#234)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| LMArena Coding | 1155 | 1412 |
| LMArena WebDev | — | 1243 |
| BigCodeBench Instruct | 32.3% | — |
| BigCodeBench Complete | 42% | — |
| ALE-Bench | — | 221.8 |
Agentic & Tool Use Not comparable
Qwen1.5-32B: —, Qwen3.5-Flash: —
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| Vending-Bench 2 | — | 462.69 |
Reasoning Qwen3.5-Flash leads
Qwen1.5-32B: 20.9 (#210), Qwen3.5-Flash: 32.9 (#63)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| LMArena Hard Prompts | 1131 | 1404 |
| Chess Puzzles | — | 21% |
| Mystery Game Puzzles | — | 20% |
| DTBench | — | 82.9% |
| LMCA | — | 29.1% |
| Epoch Capabilities Index | — | 143.98 |
Math Qwen3.5-Flash leads
Qwen1.5-32B: 30.5 (#207), Qwen3.5-Flash: 36.3 (#117)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| LMArena Math | 1155 | 1407 |
| FrontierMath (Tiers 1-3) | — | 18.2% |
| OTIS Mock AIME 2024-2025 | — | 84.4% |
| FrontierMath (Feb 2025 set) | — | 6.2% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Qwen3.5-Flash leads
Qwen1.5-32B: 13.5 (#291), Qwen3.5-Flash: 43.2 (#84)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| GPQA Diamond | 30.7% | 82.3% |
| LMArena Expert | 1126 | 1408 |
| SimpleQA Verified | — | 20.3% |
| Vectara Hallucination Rate | — | 10.5% |
| MMLU | 74.4% | — |
Multilingual Qwen3.5-Flash leads
Qwen1.5-32B: 31.6 (#254), Qwen3.5-Flash: 50.7 (#116)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| LMArena Non-English | 1106 | 1385 |
| LMArena Chinese | 1176 | 1446 |
| LMArena French | 1100 | 1412 |
| LMArena German | 1058 | 1389 |
| LMArena Japanese | 1027 | 1369 |
| LMArena Korean | 1007 | 1344 |
| LMArena Russian | 1073 | 1379 |
| LMArena Spanish | 1089 | 1399 |
Instruction Following Qwen3.5-Flash leads
Qwen1.5-32B: 58.0 (#260), Qwen3.5-Flash: 72.8 (#133)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| LMArena Instruction Following | 1116 | 1374 |
Long Context Qwen3.5-Flash leads
Qwen1.5-32B: 34.7 (#241), Qwen3.5-Flash: 42.4 (#119)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| LMArena Longer Query | 1146 | 1392 |
Writing & Preference Qwen3.5-Flash leads
Qwen1.5-32B: 34.4 (#266), Qwen3.5-Flash: 58.2 (#117)
| Benchmark | Qwen1.5-32B | Qwen3.5-Flash |
|---|---|---|
| LMArena Text | 1137 | 1397 |
| LMArena Creative Writing | 1083 | 1343 |
| LMArena Multi-Turn | 1140 | 1393 |
Frequently asked questions
Is Qwen1.5-32B better than Qwen3.5-Flash?
Qwen3.5-Flash is the stronger model overall, scoring 42.3 to 30.0 on the Noometry Index.
Is Qwen1.5-32B or Qwen3.5-Flash better for coding?
Qwen3.5-Flash scores higher on coding benchmarks: 33.9 versus 31.1 in the Noometry coding category.
How many benchmarks do Qwen1.5-32B and Qwen3.5-Flash share?
18 benchmarks have published results for both models. Qwen1.5-32B has 21 scored results on Noometry and Qwen3.5-Flash has 32.