Model comparison
Nemotron 3 Ultra vs Qwen3.5 397B
Head-to-head evidence from 26 shared benchmark results across 6 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Verified leaderboard positions: Nemotron 3 Ultra #24; Qwen3.5 397B #20
BenchAlign evidence: Nemotron 3 Ultra not scored; Qwen3.5 397B estimated. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Nemotron 3 Ultra and Qwen3.5 397B share 26 comparable benchmark results. 6 of 8 categories are comparable. 13 results are unique to Nemotron 3 Ultra; 30 to Qwen3.5 397B.
Updated July 16, 2026- Shared results
- 26
- Nemotron 3 Ultra only
- 13
- Qwen3.5 397B only
- 30
- Comparable categories
- 6 / 8
Pick Nemotron 3 Ultra if you want the stronger benchmark profile. Qwen3.5 397B only becomes the better choice if instruction following is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Confidence note. This is a partial-evidence comparison with 26 shared benchmark results across 6 evidence categories; 6 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Nemotron 3 Ultra finishes one point ahead on BenchLM's provisional leaderboard, 60 to 59. That is enough to call, but not enough to treat as a blowout. This matchup comes down to a few meaningful edges rather than one model dominating the board.
Qwen3.5 397B is also the more expensive model on tokens at $0.60 input / $3.60 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Nemotron 3 Ultra. That is roughly Infinityx on output cost alone. Nemotron 3 Ultra is the reasoning model in the pair, while Qwen3.5 397B is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. Nemotron 3 Ultra gives you the larger context window at 1M, compared with 128K for Qwen3.5 397B.
Category breakdown
Exact category averages are shown below. Not measured means BenchLM does not have enough sourced public coverage for that model and category.
| Category | Nemotron 3 Ultra | Δ | Qwen3.5 397B |
|---|---|---|---|
| Inst. Following | Nemotron 3 Ultra81.7 | Margin→ 10.9 | Qwen3.5 397B92.6 |
| Coding | Nemotron 3 Ultra58.3 | Margin→ 8.2 | Qwen3.5 397B66.5 |
| Agentic | Nemotron 3 Ultra51.3 | Margin→ 5.2 | Qwen3.5 397B56.5 |
| Knowledge | Nemotron 3 Ultra54.2 | Margin→ 2.7 | Qwen3.5 397B56.9 |
| Multilingual | Nemotron 3 Ultra83.0 | Margin→ 1.7 | Qwen3.5 397B84.7 |
| Reasoning | Nemotron 3 Ultra61.9 | Margin→ 1.3 | Qwen3.5 397B63.2 |
| Math | Nemotron 3 UltraNot measured | MarginNo overlap | Qwen3.5 397B90.6 |
| Multimodal | Nemotron 3 UltraNot measured | MarginNo overlap | Qwen3.5 397B79.6 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
BrowseComp
AgenticA 44.4%B 62%Winner: Qwen3.5 397BΔ 17.6BrowseComp: Nemotron 3 Ultra scored 44.4%; Qwen3.5 397B scored 62%. Qwen3.5 397B wins this benchmark. - Source ↗
SWE-bench Verified
CodingA 71.9%B 76.2%Winner: Qwen3.5 397BΔ 4.3SWE-bench Verified: Nemotron 3 Ultra scored 71.9%; Qwen3.5 397B scored 76.2%. Qwen3.5 397B wins this benchmark. - Source ↗
Terminal-Bench 2.0
AgenticA 56.4%B 52.5%Winner: Nemotron 3 UltraΔ 3.9Terminal-Bench 2.0: Nemotron 3 Ultra scored 56.4%; Qwen3.5 397B scored 52.5%. Nemotron 3 Ultra wins this benchmark. - Source ↗
HLE
KnowledgeA 26.7%B 28.7%Winner: Qwen3.5 397BΔ 2HLE: Nemotron 3 Ultra scored 26.7%; Qwen3.5 397B scored 28.7%. Qwen3.5 397B wins this benchmark. - Source ↗
MMLU-ProX
MultilingualA 83%B 84.7%Winner: Qwen3.5 397BΔ 1.7MMLU-ProX: Nemotron 3 Ultra scored 83%; Qwen3.5 397B scored 84.7%. Qwen3.5 397B wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Nemotron 3 Ultra | Qwen3.5 397B | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Nemotron 3 Ultra$0 input / $0 output | Qwen3.5 397B$0.6 input / $3.6 output | Nemotron 3 Ultra has the lower combined listed price. |
| Generation speedtokens per second | Nemotron 3 UltraNot available | Qwen3.5 397B96 tok/s | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Nemotron 3 UltraNot available | Qwen3.5 397B2.44 s | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Nemotron 3 Ultra1M | Qwen3.5 397B128K | Nemotron 3 Ultra lists the larger context window. |
Benchmark Deep Dive
AgenticQwen3.5 397B wins23 benchmarks
| Benchmark | Nemotron 3 Ultra | Qwen3.5 397B | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 56.4% | 52.5% | Nemotron 3 Ultra leads |
| PinchBenchSource | 90.0% | — | Not comparable |
| BrowseCompSource | 44.4% | 62% | Qwen3.5 397B leads |
| τ³-bench resultsSource | 70.9% | 68.4% | Nemotron 3 Ultra leads |
| GDPval-AASource | 33.2% | 23.1% | Nemotron 3 Ultra leads |
| HLE w/ toolsSource | 37.4% | — | Not comparable |
| AA Agentic IndexSource | 27.4% | 19.9% | Nemotron 3 Ultra leads |
| τ²-bench resultsSource | 83.3% | 95.6% | Qwen3.5 397B leads |
| GDPval-AASource | 1164 | 962 | Nemotron 3 Ultra leads |
| AA BriefcaseSource | 870 | — | Not comparable |
| AA EnterpriseOps-GymSource | 28.9% | — | Not comparable |
| AA Harvey LABSource | 3.3% | — | Not comparable |
| Claw-EvalSource | — | 56.8% | Not comparable |
| QwenClawBenchSource | — | 51.8% | Not comparable |
| VITA-BenchSource | — | 43.7% | Not comparable |
| DeepPlanningSource | — | 37.6% | Not comparable |
| ToolathlonSource | — | 36.3% | Not comparable |
| MCP AtlasSource | — | 46.1% | Not comparable |
| MCP-TasksSource | — | 74.2% | Not comparable |
| WideResearchSource | — | 74.0% | Not comparable |
| Gert LabsSource | — | 46.76% | Not comparable |
| ResearchClawBenchSource | — | 14.2% | Not comparable |
| APEX-Agents-AASource | — | 15.3% | Not comparable |
CodingQwen3.5 397B wins9 benchmarks
| Benchmark | Nemotron 3 Ultra | Qwen3.5 397B | Result |
|---|---|---|---|
| SWE-bench VerifiedSource | 71.9% | 76.2% | Qwen3.5 397B leads |
| SWE MultilingualSource | 67.7% | — | Not comparable |
| LiveCodeBench v6Source | 89.0% | 83.6% | Nemotron 3 Ultra leads |
| SciCodeSource | 44.6% | — | Not comparable |
| Terminal-Bench 2.0Source | 56.4% | — | Not comparable |
| AA Coding IndexSource | 49.3% | 48.2% | Nemotron 3 Ultra leads |
| Terminal-Bench HardSource | 36.4% | 40.9% | Qwen3.5 397B leads |
| AA-SciCodeSource | 39.9% | 42.0% | Qwen3.5 397B leads |
| SWE-bench ProSource | — | 50.9% | Not comparable |
ReasoningQwen3.5 397B wins4 benchmarks
KnowledgeQwen3.5 397B wins15 benchmarks
| Benchmark | Nemotron 3 Ultra | Qwen3.5 397B | Result |
|---|---|---|---|
| GPQASource | 87% | 88.4% | Qwen3.5 397B leads |
| GPQA-DSource | 87.0% | — | Not comparable |
| HLESource | 26.7% | 28.7% | Qwen3.5 397B leads |
| HLE w/o toolsSource | 26.7% | — | Not comparable |
| MMLU-ProSource | 86.8% | 87.8% | Qwen3.5 397B leads |
| AA-Omniscience AccuracySource | 21.6% | 31.4% | Qwen3.5 397B leads |
| Artificial Analysis Intelligence IndexSource | 37.8% | 33.7% | Nemotron 3 Ultra leads |
| AA-GPQA DiamondSource | 86.7% | 89.3% | Qwen3.5 397B leads |
| AA-HLESource | 26.6% | 27.3% | Qwen3.5 397B leads |
| AA-Omniscience IndexSource | -0.8% | -29.8% | Nemotron 3 Ultra leads |
| AA-Omniscience Hallucination RateSource | 28.5% | 89.1% | Nemotron 3 Ultra leads |
| AA Openness IndexSource | 83.3% | — | Not comparable |
| SuperGPQASource | — | 70.4% | Not comparable |
| MMLU-ReduxSource | — | 94.9% | Not comparable |
| C-EvalSource | — | 93% | Not comparable |
Math5 benchmarks
MultilingualQwen3.5 397B wins2 benchmarks
Multimodal8 benchmarks
| Benchmark | Nemotron 3 Ultra | Qwen3.5 397B | Result |
|---|---|---|---|
| Design Arena WebsiteSource | 1132 | — | Not comparable |
| MMMU-ProSource | — | 79% | Not comparable |
| MathVisionSource | — | 88.6% | Not comparable |
| CharXivSource | — | 80.8% | Not comparable |
| VideoMMMUSource | — | 84.7% | Not comparable |
| ScreenSpot ProSource | — | 65.6% | Not comparable |
| V*Source | — | 95.8% | Not comparable |
| AA-MMMU-ProSource | — | 77.3% | Not comparable |
Frequently Asked Questions (7)
Which is better, Nemotron 3 Ultra or Qwen3.5 397B?
Nemotron 3 Ultra is ahead on BenchLM's provisional leaderboard, 60 to 59. The biggest single separator in this matchup is BrowseComp, where the scores are 44.4% and 62%.
Which is better for knowledge tasks, Nemotron 3 Ultra or Qwen3.5 397B?
Qwen3.5 397B has the edge for knowledge tasks in this comparison, averaging 56.9 versus 54.2. Inside this category, AA-Omniscience Hallucination Rate is the benchmark that creates the most daylight between them.
Which is better for coding, Nemotron 3 Ultra or Qwen3.5 397B?
Qwen3.5 397B has the edge for coding in this comparison, averaging 66.5 versus 58.3. Inside this category, LiveCodeBench v6 is the benchmark that creates the most daylight between them.
Which is better for reasoning, Nemotron 3 Ultra or Qwen3.5 397B?
Qwen3.5 397B has the edge for reasoning in this comparison, averaging 63.2 versus 61.9. Inside this category, CritPt is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Nemotron 3 Ultra or Qwen3.5 397B?
Qwen3.5 397B has the edge for agentic tasks in this comparison, averaging 56.5 versus 51.3. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.
Which is better for instruction following, Nemotron 3 Ultra or Qwen3.5 397B?
Qwen3.5 397B has the edge for instruction following in this comparison, averaging 92.6 versus 81.7. Inside this category, AA-IFBench is the benchmark that creates the most daylight between them.
Which is better for multilingual tasks, Nemotron 3 Ultra or Qwen3.5 397B?
Qwen3.5 397B has the edge for multilingual tasks in this comparison, averaging 84.7 versus 83. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.
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