Data points: 82
The readout for Nemotron 3 Ultra and Qwen3.5, before the detailed comparison sheet.
Decision read
Qwen3.5
Qwen3.5 currently has the stronger profile, with verified wins split 0 to 4.
Evidence depth
82 data points
Includes 9 benchmark rows, 0 audit samples, and 8 provider examples.
Selection signal
Start with Qwen3.5
The charts below split 17 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
Model compare Nemotron 3 Ultra vs Qwen3.5nemotron-3-ultra-550b-a55b-vs-qwen3-5 | Model A Nemotron 3 Ultra | Model B Qwen3.5 |
|---|---|---|
| Overall leader | Contender | Leading |
| Verified metric wins | 0 wins | 4 wins |
| Where it leads | No data |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
Nemotron 3 Ultra
48.3
Avg. score
Qwen3.5
68.8
Selected category
Coding
Qwen3.5 leads by 11.2
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
Nemotron 3 Ultra
0.92 s
Rank #36/113 · confidence 4
Qwen3.5
winner0.50 s
Rank #7/113 · confidence 4
Nemotron 3 Ultra
winner179.1 tok/s
Rank #19/113 · confidence 4
Qwen3.5
32.1 tok/s
Rank #111/113 · confidence 4
Nemotron 3 Ultra
winner13.63 s
Rank #69/113 · confidence 4
Qwen3.5
62.89 s
Rank #106/113 · confidence 4
Nemotron 3 Ultra
$1.18/M
Rank #73/138 · confidence 4
Qwen3.5
winner$0.060/M
Rank #1/138 · confidence 4
Nemotron 3 Ultra
$0.675/M
Rank #76/138 · confidence 4
Qwen3.5
winner$0.030/M
Rank #1/138 · confidence 4
Nemotron 3 Ultra
$2.67/M
Rank #69/138 · confidence 4
Qwen3.5
winner$0.150/M
Rank #2/138 · confidence 4
Nemotron 3 Ultra
winner86.7%
Rank #22/152 · confidence 4
Qwen3.5
77.1%
Rank #70/152 · confidence 4
Nemotron 3 Ultra
winner26.6%
Rank #24/150 · confidence 4
Qwen3.5
7.8%
Rank #79/150 · confidence 4
Nemotron 3 Ultra
winner39.9%
Rank #53/149 · confidence 4
Qwen3.5
16.1%
Rank #146/149 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Nemotron 3 Ultra | Qwen3.5 |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Nemotron 3 Ultra | Qwen3.5 |
|---|---|---|
0 tests | Nemotron 3 Ultra speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for Nemotron 3 Ultra and Qwen3.5: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Nemotron 3 Ultra | Qwen3.5 |
|---|---|---|
| When to choose each model | Nemotron 3 Ultra Nemotron 3 Ultra does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. | Qwen3.5 Qwen3.5 is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. |
TL;DR: Qwen3.5 leads across 82 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Nemotron 3 Ultra vs Qwen3.5 into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price, Free providers, Provider coverage, Recent tests |
| Model metadata | Nemotron 3 Ultra exposes 1M tokens; notable signals: Text input, Text output, Tool calling, Structured outputs. | Qwen3.5 exposes 262.1K tokens; notable signals: Text input, Image input, Text output, Tool calling. |
|---|---|---|
| Developer | NVIDIA | No data |
| Context window | 1M tokens | 262.1K tokens |
| Max output | 16.4K tokens | 262.1K tokens |
| Released | No data | Mar 2026 |
| Modalities | Input Text Output Text | Input TextImagevideo Output Text |
| Features | Text inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputText outputTool callingStructured outputsJSON modeReasoning |
| Parameters | 550B / 55B active | 9B |
| Tokenizer | Other | Qwen3 |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | nvidia/nemotron-3-ultra-550b-a55b | qwen/qwen3.5-9b |
| References | No data | No data |
Qwen3.5
speed / latency
N/A / N/A
input / output
No data
6345ywz API0 tests | Nemotron 3 Ultra speed / latency N/A / N/A input / output No data | Qwen3.5 speed / latency N/A / N/A input / output No data |
|---|
Astrdark0 tests | Nemotron 3 Ultra nvidia/nemotron-3-ultra-550b-a55b:free speed / latency N/A / N/A input / output $0.010/M / $0.010/M | Qwen3.5 qwen3.5-2b speed / latency N/A / N/A input / output $0.010/M / $0.010/M |
|---|
ChooseC API0 tests | Nemotron 3 Ultra nvidia/nemotron-3-ultra-550b-a55b speed / latency N/A / N/A input / output $75.00/M / $75.00/M | Qwen3.5 qwen/qwen3.5-397b-a17b speed / latency N/A / N/A input / output $0.390/M / $2.34/M |
|---|
ChooseC API0 tests | Nemotron 3 Ultra speed / latency N/A / N/A input / output No data | Qwen3.5 speed / latency N/A / N/A input / output No data |
|---|
Nemotron 3 Ultra nvidia/nemotron-3-ultra-550b-a55b:free speed / latency No data input / output $0/M / $0/M | Qwen3.5 qwen3.5-397b-a17b speed / latency No data input / output $0.600/M / $3.00/M |
Nemotron 3 Ultra nemotron-3-ultra-550b-a55b speed / latency No data input / output $75.00/M / $75.00/M | Qwen3.5 qwen3.5-397b-a17b speed / latency No data input / output $0.050/M / $0.050/M |
Nemotron 3 Ultra nvidia/nemotron-3-ultra-550b-a55b:free speed / latency No data input / output $0.321/M / $0.321/M | Qwen3.5 qwen/qwen3.5-397b-a17b speed / latency No data input / output $0.600/M / $3.60/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
