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

> Side-by-side benchmark comparison for Nemotron 3.5 Super VL 120B A12B 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-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 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 has the higher overall point estimate 49.4 to 40.14. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in reasoning, where the averages are 72.1 for Nemotron 3.5 Super VL 120B A12B and 48.8 for Spark-X2.6-4B.
- The biggest single benchmark swing is BrowseComp in Agentic, with scores of 78% 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 | Spark-X2.6-4B |
|----------|----------|----------|
| Creator | NVIDIA | SparkLLM |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 49.4 | 40.14 |
| Benchmarks Covered | 19 | 20 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Nemotron 3.5 Super VL 120B A12B public-lane score: 44.2 (Estimated · #63/131)
- Spark-X2.6-4B public-lane score: 33 (Estimated · #89/131)

| Benchmark | Nemotron 3.5 Super VL 120B A12B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 66.7% | Coming soon | Coming soon |
| τ²-bench Airline | 76.5% | Coming soon | Coming soon |
| τ³-bench results | 18.9% | 34.7% | Spark-X2.6-4B |
| BrowseComp | 78% | 53.1% | Nemotron 3.5 Super VL 120B A12B |
| 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 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 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 88.2% | Coming soon | Coming soon |
| SWE-bench Verified | 71.1% | 62.8% | Nemotron 3.5 Super VL 120B A12B |
| SWE Multilingual | 67.7% | 64.7% | Nemotron 3.5 Super VL 120B A12B |
| SWE-bench Pro | 51.8% | 54.3% | Spark-X2.6-4B |
| SciCode | Coming soon | 36.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B public-lane score: 72.1 (Unranked · 2 rankable rows)
- Spark-X2.6-4B public-lane score: 48.8 (Unranked · 2 rankable rows)

| Benchmark | Nemotron 3.5 Super VL 120B A12B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 10.9% | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 53.3% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B public-lane score: 62 (Unranked · 5 rankable rows)
- Spark-X2.6-4B public-lane score: Coming soon

| Benchmark | Nemotron 3.5 Super VL 120B A12B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| BabyVision | 29.6% | Coming soon | Coming soon |
| MMLongBench-Doc | 62.8% | Coming soon | Coming soon |
| V* | 85.6% | Coming soon | Coming soon |
| MathVision | 78.2% | Coming soon | Coming soon |
| CharXiv | 80.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Nemotron 3.5 Super VL 120B A12B public-lane score: 51.8 (Estimated · #75/187)
- Spark-X2.6-4B public-lane score: 43 (Estimated · #109/187)

| Benchmark | Nemotron 3.5 Super VL 120B A12B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 89.5% | 77.1% | Nemotron 3.5 Super VL 120B A12B |
| HLE w/o tools | 31.8% | 17.9% | Nemotron 3.5 Super VL 120B A12B |
| HLE | 29.2% | 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 public-lane score: 66.6 (#75/149)
- Spark-X2.6-4B public-lane score: 78.2 (#62/149)

| Benchmark | Nemotron 3.5 Super VL 120B A12B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 70.9% | 75.8% | Spark-X2.6-4B |
| IFEval | Coming soon | 93.6% | Coming soon |

### Mathematics

- Winner: Not comparable
- Nemotron 3.5 Super VL 120B A12B 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 | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| Apex Shortlist | 88.4% | 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 or Spark-X2.6-4B?

Nemotron 3.5 Super VL 120B A12B 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 and Spark-X2.6-4B?

The widest category gap is in reasoning, where the averages are 72.1 for Nemotron 3.5 Super VL 120B A12B and 48.8 for Spark-X2.6-4B.

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

Nemotron 3.5 Super VL 120B A12B currently has 19 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 vs Nemotron 3.5 Super VL 120B A12B NVFP4](/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 NVFP4](/compare/nemotron-3-5-super-vl-120b-a12b-nvfp4-vs-spark-x2-6-4b)
- [Nemotron 3.5 Super VL 120B A12B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-nemotron-3-5-super-vl-120b-a12b)
- [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 profile](/models/nemotron-3-5-super-vl-120b-a12b)
- [Spark-X2.6-4B profile](/models/spark-x2-6-4b)
- [Compare Pricing](/llm-pricing)
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- [Overall Rankings](/best/overall)