Model comparison
Muse Spark vs Nemotron 3 Ultra
Head-to-head evidence from 21 shared benchmark results across 5 categories. Overall scores shown here use the public BenchAlign v5 ranking lane.
Verified leaderboard positions: Muse Spark unranked; Nemotron 3 Ultra #24
BenchAlign evidence: Muse Spark supported; Nemotron 3 Ultra not scored. Intervals and evidence labels describe ranking uncertainty, not a guarantee for a specific workload.
Evidence parity. Muse Spark and Nemotron 3 Ultra share 21 comparable benchmark results. 4 of 8 categories are comparable. 20 results are unique to Muse Spark; 18 to Nemotron 3 Ultra.
Updated July 16, 2026- Shared results
- 21
- Muse Spark only
- 20
- Nemotron 3 Ultra only
- 18
- Comparable categories
- 4 / 8
Pick Muse Spark if you want the stronger benchmark profile. Nemotron 3 Ultra only becomes the better choice if reasoning is the priority or you need the larger 1M context window.
Confidence note. This is a partial-evidence comparison with 21 shared benchmark results across 5 evidence categories; 4 of 8 categories currently have scoreable aggregates for both models. Treat the verdict as directional until coverage is more balanced.
Why this result
Muse Spark has the cleaner provisional overall profile here, landing at 63 versus 60. It is a real lead, but still close enough that category-level strengths matter more than the headline number.
Muse Spark's sharpest advantage is in coding, where it averages 67.8 against 58.3. The single biggest benchmark swing on the page is HLE, 50.4% to 26.7%. Nemotron 3 Ultra does hit back in reasoning, so the answer changes if that is the part of the workload you care about most.
Nemotron 3 Ultra gives you the larger context window at 1M, compared with 262K for Muse Spark.
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 | Muse Spark | Δ | Nemotron 3 Ultra |
|---|---|---|---|
| Reasoning | Muse Spark42.5 | Margin→ 19.4 | Nemotron 3 Ultra61.9 |
| Coding | Muse Spark67.8 | Margin← 9.5 | Nemotron 3 Ultra58.3 |
| Agentic | Muse Spark59.0 | Margin← 7.7 | Nemotron 3 Ultra51.3 |
| Knowledge | Muse Spark50.4 | Margin→ 3.8 | Nemotron 3 Ultra54.2 |
| Math | Muse Spark32.9 | MarginNo overlap | Nemotron 3 UltraNot measured |
| Multilingual | Muse SparkNot measured | MarginNo overlap | Nemotron 3 Ultra83.0 |
| Multimodal | Muse Spark82.5 | MarginNo overlap | Nemotron 3 UltraNot measured |
| Inst. Following | Muse SparkNot measured | MarginNo overlap | Nemotron 3 Ultra81.7 |
Decisive benchmark drivers
The largest measured benchmark gaps in this matchup, with exact reported values.
More
- Source ↗
HLE
KnowledgeA 50.4%B 26.7%Winner: Muse SparkΔ 23.7HLE: Muse Spark scored 50.4%; Nemotron 3 Ultra scored 26.7%. Muse Spark wins this benchmark. - Source ↗
SWE-bench Verified
CodingA 77.4%B 71.9%Winner: Muse SparkΔ 5.5SWE-bench Verified: Muse Spark scored 77.4%; Nemotron 3 Ultra scored 71.9%. Muse Spark wins this benchmark. - Source ↗
Terminal-Bench 2.0
AgenticA 59%B 56.4%Winner: Muse SparkΔ 2.6Terminal-Bench 2.0: Muse Spark scored 59%; Nemotron 3 Ultra scored 56.4%. Muse Spark wins this benchmark.
Operational comparison
Runtime and commercial metrics are compared only when both models have a complete sourced value.
| Metric | Muse Spark | Nemotron 3 Ultra | Comparison |
|---|---|---|---|
| Input / output priceUSD per 1M tokens | Muse SparkNot available | Nemotron 3 Ultra$0 input / $0 output | A complete price comparison is not available. |
| Generation speedtokens per second | Muse SparkNot available | Nemotron 3 UltraNot available | A complete speed comparison is not available. |
| First-answer latencyseconds to first token | Muse SparkNot available | Nemotron 3 UltraNot available | A complete latency comparison is not available. |
| Context windowmaximum listed tokens | Muse Spark262K | Nemotron 3 Ultra1M | Nemotron 3 Ultra lists the larger context window. |
Benchmark Deep Dive
AgenticMuse Spark wins15 benchmarks
| Benchmark | Muse Spark | Nemotron 3 Ultra | Result |
|---|---|---|---|
| Terminal-Bench 2.0Source | 59% | 56.4% | Muse Spark leads |
| τ²-bench resultsSource | 91.5% | 83.3% | Muse Spark leads |
| DeepSearchQASource | 74.8% | — | Not comparable |
| CyberGymSource | 43.5% | — | Not comparable |
| Claw-EvalSource | 63.8% | — | Not comparable |
| AA Agentic IndexSource | 28.7% | 27.4% | Muse Spark leads |
| GDPval-AASource | 32.2% | 33.2% | Nemotron 3 Ultra leads |
| GDPval-AASource | 1144 | 1164 | Nemotron 3 Ultra leads |
| PinchBenchSource | — | 90.0% | Not comparable |
| BrowseCompSource | — | 44.4% | Not comparable |
| τ³-bench resultsSource | — | 70.9% | Not comparable |
| HLE w/ toolsSource | — | 37.4% | Not comparable |
| AA BriefcaseSource | — | 870 | Not comparable |
| AA EnterpriseOps-GymSource | — | 28.9% | Not comparable |
| AA Harvey LABSource | — | 3.3% | Not comparable |
CodingMuse Spark wins11 benchmarks
| Benchmark | Muse Spark | Nemotron 3 Ultra | Result |
|---|---|---|---|
| SWE-bench VerifiedSource | 77.4% | 71.9% | Muse Spark leads |
| SWE-bench ProSource | 52.4% | — | Not comparable |
| LiveCodeBench ProSource | 80.0% | — | Not comparable |
| Vibe Code BenchSource | 19.67% | — | Not comparable |
| AA Coding IndexSource | 58.6% | 49.3% | Muse Spark leads |
| Terminal-Bench HardSource | 45.5% | 36.4% | Muse Spark leads |
| AA-SciCodeSource | 51.5% | 39.9% | Muse Spark leads |
| SWE MultilingualSource | — | 67.7% | Not comparable |
| LiveCodeBench v6Source | — | 89.0% | Not comparable |
| SciCodeSource | — | 44.6% | Not comparable |
| Terminal-Bench 2.0Source | — | 56.4% | Not comparable |
ReasoningNemotron 3 Ultra wins4 benchmarks
KnowledgeNemotron 3 Ultra wins14 benchmarks
| Benchmark | Muse Spark | Nemotron 3 Ultra | Result |
|---|---|---|---|
| GPQA-DSource | 89.5% | 87.0% | Muse Spark leads |
| HLESource | 50.4% | 26.7% | Muse Spark leads |
| HLE w/o toolsSource | 42.8% | 26.7% | Muse Spark leads |
| HealthBench HardSource | 42.8% | — | Not comparable |
| MedXpertQA (Text)Source | 52.6% | — | Not comparable |
| Artificial Analysis Intelligence IndexSource | 43.1% | 37.8% | Muse Spark leads |
| AA-GPQA DiamondSource | 88.4% | 86.7% | Muse Spark leads |
| AA-HLESource | 39.9% | 26.6% | Muse Spark leads |
| AA-Omniscience IndexSource | 4.1% | -0.8% | Muse Spark leads |
| AA-Omniscience AccuracySource | 44.6% | 21.6% | Muse Spark leads |
| AA-Omniscience Hallucination RateSource | 73.2% | 28.5% | Nemotron 3 Ultra leads |
| GPQASource | — | 87% | Not comparable |
| MMLU-ProSource | — | 86.8% | Not comparable |
| AA Openness IndexSource | — | 83.3% | Not comparable |
Math2 benchmarks
Multilingual1 benchmarks
| Benchmark | Muse Spark | Nemotron 3 Ultra | Result |
|---|---|---|---|
| MMLU-ProXSource | — | 83% | Not comparable |
Multimodal10 benchmarks
| Benchmark | Muse Spark | Nemotron 3 Ultra | Result |
|---|---|---|---|
| CharXivSource | 86.4% | — | Not comparable |
| MMMU-ProSource | 80.4% | — | Not comparable |
| ERQASource | 64.7% | — | Not comparable |
| SimpleVQASource | 71.3% | — | Not comparable |
| ScreenSpot ProSource | 84.1% | — | Not comparable |
| ZeroBenchSource | 33.0% | — | Not comparable |
| MedXpertQA (MM)Source | 78.4% | — | Not comparable |
| GDPval-AASource | 1444 | — | Not comparable |
| AA-MMMU-ProSource | 80.5% | — | Not comparable |
| Design Arena WebsiteSource | — | 1132 | Not comparable |
Frequently Asked Questions (5)
Which is better, Muse Spark or Nemotron 3 Ultra?
Muse Spark is ahead on BenchLM's provisional leaderboard, 63 to 60. The biggest single separator in this matchup is HLE, where the scores are 50.4% and 26.7%.
Which is better for knowledge tasks, Muse Spark or Nemotron 3 Ultra?
Nemotron 3 Ultra has the edge for knowledge tasks in this comparison, averaging 54.2 versus 50.4. Inside this category, AA-Omniscience Hallucination Rate is the benchmark that creates the most daylight between them.
Which is better for coding, Muse Spark or Nemotron 3 Ultra?
Muse Spark has the edge for coding in this comparison, averaging 67.8 versus 58.3. Inside this category, AA-SciCode is the benchmark that creates the most daylight between them.
Which is better for reasoning, Muse Spark or Nemotron 3 Ultra?
Nemotron 3 Ultra has the edge for reasoning in this comparison, averaging 61.9 versus 42.5. Inside this category, CritPt is the benchmark that creates the most daylight between them.
Which is better for agentic tasks, Muse Spark or Nemotron 3 Ultra?
Muse Spark has the edge for agentic tasks in this comparison, averaging 59 versus 51.3. Inside this category, GDPval-AA is the benchmark that creates the most daylight between them.
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