# Nemotron 3.5 Super VL 120B A12B NVFP4 vs Spark-X2.6-4B

> Side-by-side benchmark comparison for Nemotron 3.5 Super VL 120B A12B NVFP4 and Spark-X2.6-4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/nemotron-3-5-super-vl-120b-a12b-nvfp4-vs-spark-x2-6-4b
- Last updated: October 20, 2026

- Shared sourced benchmarks: 8
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Nemotron 3.5 Super VL 120B A12B NVFP4 leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Nemotron 3.5 Super VL 120B A12B NVFP4 has the higher overall point estimate 58 to 40.14. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in reasoning, where the averages are 71.5 for Nemotron 3.5 Super VL 120B A12B NVFP4 and 48.8 for Spark-X2.6-4B.
- The biggest single benchmark swing is BrowseComp in Agentic, with scores of 77.5% and 53.1%.
- Spark-X2.6-4B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B |
|----------|----------|----------|
| Creator | NVIDIA | SparkLLM |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | 40.14 |
| Benchmarks Covered | 18 | 20 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 33 (Estimated · #89/131)

| Benchmark | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 60.8% | Coming soon | Coming soon |
| τ²-bench Airline | 75.8% | Coming soon | Coming soon |
| τ³-bench results | 17.8% | 34.7% | Spark-X2.6-4B |
| BrowseComp | 77.5% | 53.1% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| BFCL v4 | Coming soon | 71.8% | Coming soon |
| τ²-bench results | Coming soon | 86.9% | Coming soon |
| MCP Atlas | Coming soon | 62.4% | Coming soon |
| HLE w/ tools | Coming soon | 36.9% | Coming soon |
| Claw-Eval | Coming soon | 69.9% | Coming soon |

### Coding

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 30.6 (Estimated · #95/152)

| Benchmark | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 87.4% | Coming soon | Coming soon |
| SWE-bench Verified | 71.1% | 62.8% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| SWE Multilingual | 67% | 64.7% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| SWE-bench Pro | 51.3% | 54.3% | Spark-X2.6-4B |
| SciCode | Coming soon | 36.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 71.5 (Unranked · 1 rankable row)
- Spark-X2.6-4B public-lane score: 48.8 (Unranked · 2 rankable rows)

| Benchmark | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 53.3% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 59.5 (Unranked · 5 rankable rows)
- Spark-X2.6-4B public-lane score: Coming soon

| Benchmark | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| BabyVision | 29.5% | Coming soon | Coming soon |
| MMLongBench-Doc | 62.8% | Coming soon | Coming soon |
| V* | 86.0% | Coming soon | Coming soon |
| MathVision | 77.8% | Coming soon | Coming soon |
| CharXiv | 79.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 43 (Estimated · #109/187)

| Benchmark | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 89.9% | 77.1% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| HLE w/o tools | 31.4% | 17.9% | Nemotron 3.5 Super VL 120B A12B NVFP4 |
| HLE | 29% | Coming soon | Coming soon |
| GPQA | Coming soon | 69.9% | Coming soon |

### Instruction Following

- Winner: Spark-X2.6-4B
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: 68.1 (#74/149)
- Spark-X2.6-4B public-lane score: 78.2 (#62/149)

| Benchmark | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 71.5% | 75.8% | Spark-X2.6-4B |
| IFEval | Coming soon | 93.6% | Coming soon |

### Mathematics

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B NVFP4 public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 76.4 (Unranked · 3 rankable rows)

| Benchmark | Nemotron 3.5 Super VL 120B A12B NVFP4 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Apex Shortlist | 89.4% | Coming soon | Coming soon |
| AIME26 | Coming soon | 91.2% | Coming soon |
| HMMT Feb 2026 | Coming soon | 81.3% | Coming soon |
| IMOAnswerBench | Coming soon | 75.2% | Coming soon |

## FAQ

### Which is better overall, Nemotron 3.5 Super VL 120B A12B NVFP4 or Spark-X2.6-4B?

Nemotron 3.5 Super VL 120B A12B NVFP4 has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Nemotron 3.5 Super VL 120B A12B NVFP4 and Spark-X2.6-4B?

The widest category gap is in reasoning, where the averages are 71.5 for Nemotron 3.5 Super VL 120B A12B NVFP4 and 48.8 for Spark-X2.6-4B.

### How many benchmarks does Nemotron 3.5 Super VL 120B A12B NVFP4 cover on BenchLM?

Nemotron 3.5 Super VL 120B A12B NVFP4 currently has 18 sourced benchmark scores on BenchLM.

### How many benchmarks does Spark-X2.6-4B cover on BenchLM?

Spark-X2.6-4B currently has 20 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Nemotron 3.5 Super VL 120B A12B NVFP4 vs Nemotron 3.5 Super VL 120B A12B](/compare/nemotron-3-5-super-vl-120b-a12b-vs-nemotron-3-5-super-vl-120b-a12b-nvfp4)
- [Spark-X2.6-4B vs Nemotron 3.5 Super VL 120B A12B](/compare/nemotron-3-5-super-vl-120b-a12b-vs-spark-x2-6-4b)
- [Nemotron 3.5 Super VL 120B A12B NVFP4 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-nemotron-3-5-super-vl-120b-a12b-nvfp4)
- [Spark-X2.6-4B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-spark-x2-6-4b)

## Explore More

- [Nemotron 3.5 Super VL 120B A12B NVFP4 profile](/models/nemotron-3-5-super-vl-120b-a12b-nvfp4)
- [Spark-X2.6-4B profile](/models/spark-x2-6-4b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)