Model comparison
Nemotron 3 Ultra vs Qwen3.5-Flash
Nemotron 3 Ultra and Qwen3.5-Flash score almost the same on the Noometry Index (42.5 vs 42.5), so choose on price, context window or the category you care about most.
Last verified . 23 shared benchmarks.
NVIDIA
Alibaba (Qwen)Summary
- They share 23 benchmarks with published results for both. Nemotron 3 Ultra scores higher in 6 categories and Qwen3.5-Flash in 2 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Nemotron 3 Ultra leads 52.5 to 43.2.
- The biggest single-benchmark swing is Chess Puzzles: 12% for Nemotron 3 Ultra and 21% for Qwen3.5-Flash.
- Qwen3.5-Flash is cheaper at $0.10 / $0.40 per million input/output tokens, against $0.60 / $2.40 for Nemotron 3 Ultra.
- Qwen3.5-Flash accepts more context: 1M tokens versus 262K.
- Nemotron 3 Ultra has downloadable open weights; the other is API-only.
Side by side
| Nemotron 3 Ultra | Qwen3.5-Flash | |
|---|---|---|
| Provider | NVIDIA | Alibaba (Qwen) |
| Noometry Index | 42.5 | 42.5 |
| Released | 2026-06-04 | 2026-02-23 |
| Weights | Open | Proprietary |
| Context window | 262K | 1M |
| Max output | 128K | 66K |
| Input $ / M tokens | $0.60 | $0.10 |
| Output $ / M tokens | $2.40 | $0.40 |
| Results tracked | 30 | 32 |
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Category by category
Coding Nemotron 3 Ultra leads
Nemotron 3 Ultra: 38.1 (#182), Qwen3.5-Flash: 34.2 (#242)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| LMArena Coding | 1468 | 1412 |
| FrontierCode | 13.6% | — |
| LMArena WebDev | — | 1244 |
| SciCode | 40.3% | — |
| WeirdML | 43.5% | — |
| ALE-Bench | — | 221.8 |
Agentic & Tool Use Not comparable
Nemotron 3 Ultra: 23.4 (#126), Qwen3.5-Flash: —
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| APEX-Agents | 22.7% | — |
| Vending-Bench 2 | — | 462.69 |
Reasoning Qwen3.5-Flash leads
Nemotron 3 Ultra: 31.0 (#82), Qwen3.5-Flash: 33.7 (#72)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| Chess Puzzles | 12% | 21% |
| LMArena Hard Prompts | 1452 | 1403 |
| Mystery Game Puzzles | 20% | 20% |
| DTBench | 90.1% | 82.9% |
| LMCA | 36.9% | 29.1% |
| Epoch Capabilities Index | 146.17 | 143.98 |
| CritPt | 3.1% | — |
Math Qwen3.5-Flash leads
Nemotron 3 Ultra: 35.3 (#187), Qwen3.5-Flash: 37.4 (#158)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 86.7% | 84.4% |
| LMArena Math | 1457 | 1407 |
| FrontierMath (Tiers 1-3) | — | 18.2% |
| ProofBench | 2% | — |
| FrontierMath (Feb 2025 set) | — | 6.2% |
| FrontierMath Tier 4 (v1) | — | 0% |
Knowledge Nemotron 3 Ultra leads
Nemotron 3 Ultra: 52.5 (#61), Qwen3.5-Flash: 43.2 (#93)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| GPQA Diamond | 85.4% | 82.3% |
| LMArena Expert | 1472 | 1407 |
| SimpleQA Verified | — | 20.3% |
| Vectara Hallucination Rate | — | 10.5% |
Multilingual Nemotron 3 Ultra leads
Nemotron 3 Ultra: 53.5 (#64), Qwen3.5-Flash: 50.5 (#121)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| LMArena Non-English | 1427 | 1385 |
| LMArena Chinese | 1497 | 1446 |
| LMArena French | 1472 | 1412 |
| LMArena German | 1471 | 1390 |
| LMArena Korean | 1386 | 1344 |
| LMArena Russian | 1417 | 1379 |
| LMArena Spanish | 1454 | 1400 |
| LMArena Japanese | — | 1368 |
Instruction Following Nemotron 3 Ultra leads
Nemotron 3 Ultra: 74.7 (#88), Qwen3.5-Flash: 72.6 (#139)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| LMArena Instruction Following | 1418 | 1374 |
Long Context Nemotron 3 Ultra leads
Nemotron 3 Ultra: 43.9 (#81), Qwen3.5-Flash: 42.4 (#124)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| LMArena Longer Query | 1437 | 1392 |
Writing & Preference Nemotron 3 Ultra leads
Nemotron 3 Ultra: 66.3 (#36), Qwen3.5-Flash: 57.9 (#122)
| Benchmark | Nemotron 3 Ultra | Qwen3.5-Flash |
|---|---|---|
| LMArena Text | 1445 | 1397 |
| LMArena Creative Writing | 1398 | 1343 |
| LMArena Multi-Turn | 1411 | 1393 |
| EQ-Bench Creative Writing | 1692 | — |
Frequently asked questions
Is Nemotron 3 Ultra better than Qwen3.5-Flash?
Nemotron 3 Ultra and Qwen3.5-Flash score almost the same on the Noometry Index (42.5 vs 42.5), so choose on price, context window or the category you care about most.
Which is cheaper, Nemotron 3 Ultra or Qwen3.5-Flash?
Qwen3.5-Flash is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Nemotron 3 Ultra lists at $0.60 and $2.40.
Is Nemotron 3 Ultra or Qwen3.5-Flash better for coding?
Nemotron 3 Ultra scores higher on coding benchmarks: 38.1 versus 34.2 in the Noometry coding category.
Which has the bigger context window?
Qwen3.5-Flash does, with 1M tokens against 262K.
How many benchmarks do Nemotron 3 Ultra and Qwen3.5-Flash share?
23 benchmarks have published results for both models. Nemotron 3 Ultra has 30 scored results on Noometry and Qwen3.5-Flash has 32.