# Nemotron 3 Nano Omni 30B A3B vs Spark-X2.6-4B

> Side-by-side benchmark comparison for Nemotron 3 Nano Omni 30B A3B and Spark-X2.6-4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/nemotron-3-nano-omni-30b-a3b-vs-spark-x2-6-4b
- Last updated: October 20, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Spark-X2.6-4B leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Spark-X2.6-4B has the higher overall point estimate 40.14 to 32.11. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in coding, where the averages are 15.3 for Nemotron 3 Nano Omni 30B A3B and 30.6 for Spark-X2.6-4B.
- The biggest single benchmark swing is τ²-bench results in Agentic, with scores of 45.3% and 86.9%.
- Spark-X2.6-4B also has the larger context window at 1M.

## Model Snapshot

| Property | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B |
|----------|----------|----------|
| Creator | NVIDIA | SparkLLM |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Overall Score | 32.11 | 40.14 |
| Benchmarks Covered | 17 | 20 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 33 (Estimated · #89/131)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| OSWorld | 47.4% | Coming soon | Coming soon |
| τ²-bench results | 45.3% | 86.9% | Spark-X2.6-4B |
| BFCL v4 | Coming soon | 71.8% | Coming soon |
| MCP Atlas | Coming soon | 62.4% | Coming soon |
| BrowseComp | Coming soon | 53.1% | Coming soon |
| HLE w/ tools | Coming soon | 36.9% | Coming soon |
| τ³-bench results | Coming soon | 34.7% | Coming soon |
| Claw-Eval | Coming soon | 69.9% | Coming soon |

### Coding

- Winner: Directional only
- Nemotron 3 Nano Omni 30B A3B public-lane score: 15.3 (Estimated · #135/152)
- Spark-X2.6-4B public-lane score: 30.6 (Estimated · #95/152)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v5 | 63.2% | Coming soon | Coming soon |
| SciCode | 32% | 36.8% | Spark-X2.6-4B |
| SWE-bench Pro | Coming soon | 54.3% | Coming soon |
| SWE-bench Verified | Coming soon | 62.8% | Coming soon |
| SWE Multilingual | Coming soon | 64.7% | Coming soon |

### Reasoning

- Winner: Not comparable
- Nemotron 3 Nano Omni 30B A3B public-lane score: 52.3 (Unranked · 2 rankable rows)
- Spark-X2.6-4B public-lane score: 48.8 (Unranked · 2 rankable rows)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 53.3% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Nemotron 3 Nano Omni 30B A3B public-lane score: 43.8 (#51/55)
- Spark-X2.6-4B public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| ParseBench | 48.51% | Coming soon | Coming soon |
| MMMU | 70.8% | Coming soon | Coming soon |
| MMLongBench-Doc | 57.5% | Coming soon | Coming soon |
| CharXiv | 76.3% | Coming soon | Coming soon |
| ScreenSpot Pro | 57.8% | Coming soon | Coming soon |
| Video-MME (w/o subtitle) | 72.2% | Coming soon | Coming soon |
| AI2D_TEST | 88.5% | Coming soon | Coming soon |
| RefCOCO (avg) | 90.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Nemotron 3 Nano Omni 30B A3B public-lane score: 32.5 (Supported · #145/187)
- Spark-X2.6-4B public-lane score: 43 (Estimated · #109/187)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 77.3% | Coming soon | Coming soon |
| GPQA | 72.2% | 69.9% | Nemotron 3 Nano Omni 30B A3B |
| GPQA-D | 72.2% | 77.1% | Spark-X2.6-4B |
| HLE w/o tools | Coming soon | 17.9% | Coming soon |

### Instruction Following

- Winner: Spark-X2.6-4B
- Nemotron 3 Nano Omni 30B A3B public-lane score: 75.4 (#67/149)
- Spark-X2.6-4B public-lane score: 78.2 (#62/149)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 74.2% | 75.8% | Spark-X2.6-4B |
| IFEval | Coming soon | 93.6% | Coming soon |

### Mathematics

- Winner: Not comparable
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon
- Spark-X2.6-4B public-lane score: 76.4 (Unranked · 3 rankable rows)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | Spark-X2.6-4B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 82.1% | 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 Nano Omni 30B A3B or Spark-X2.6-4B?

Spark-X2.6-4B has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Nemotron 3 Nano Omni 30B A3B and Spark-X2.6-4B?

The widest category gap is in coding, where the averages are 15.3 for Nemotron 3 Nano Omni 30B A3B and 30.6 for Spark-X2.6-4B.

### How many benchmarks does Nemotron 3 Nano Omni 30B A3B cover on BenchLM?

Nemotron 3 Nano Omni 30B A3B currently has 17 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 Nano Omni 30B A3B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-nemotron-3-nano-omni-30b-a3b)
- [Spark-X2.6-4B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-spark-x2-6-4b)
- [Nemotron 3 Nano Omni 30B A3B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-nemotron-3-nano-omni-30b-a3b)
- [Spark-X2.6-4B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-spark-x2-6-4b)

## Explore More

- [Nemotron 3 Nano Omni 30B A3B profile](/models/nemotron-3-nano-omni-30b-a3b)
- [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)