# Nemotron 3 Nano Omni 30B A3B vs o4-mini

> Side-by-side benchmark comparison for Nemotron 3 Nano Omni 30B A3B and o4-mini across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/nemotron-3-nano-omni-30b-a3b-vs-o4-mini
- Last updated: October 25, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Nemotron 3 Nano Omni 30B A3B and o4-mini share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Nemotron 3 Nano Omni 30B A3B has the lower published output-token price.
- Nemotron 3 Nano Omni 30B A3B has the larger published context window at 256K.

## Model Snapshot

| Property | Nemotron 3 Nano Omni 30B A3B | o4-mini |
|----------|----------|----------|
| Creator | NVIDIA | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 200K |
| Independent public score (not head-to-head) | 32.1 | null |
| Benchmarks Covered | 17 | 7 |
| Pricing (input/output) | $0.00 / $0.00 | $1.10 / $4.40 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon
- o4-mini public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| OSWorld | 47.4% | Coming soon | Coming soon |
| τ²-bench results | 45.3% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 15.6 (Estimated · #135/153)
- o4-mini public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v5 | 63.2% | Coming soon | Coming soon |
| SciCode | 32% | Coming soon | Coming soon |
| HumanEval | Coming soon | 97.3% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 52.3 (Unranked · 2 rankable rows)
- o4-mini public-lane score: 66.9 (Unranked · 3 rankable rows)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| DROP | Coming soon | 77.7% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 44.1 (#52/56)
- o4-mini public-lane score: 67.4 (Unranked · 1 rankable row)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | 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: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 32 (Supported · #145/187)
- o4-mini public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 77.3% | Coming soon | Coming soon |
| GPQA | 72.2% | 77.6% | o4-mini |
| GPQA-D | 72.2% | Coming soon | Coming soon |
| MMLU | Coming soon | 90% | Coming soon |
| SimpleQA | Coming soon | 20.2% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon
- o4-mini public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| MGSM | Coming soon | 93.7% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 75.4 (#69/153)
- o4-mini public-lane score: 83.9 (#55/153)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 74.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon
- o4-mini public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o4-mini | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 82.1% | Coming soon | Coming soon |
| MATH-500 | Coming soon | 97.5% | Coming soon |

## FAQ

### Is there enough evidence to pick between Nemotron 3 Nano Omni 30B A3B and o4-mini?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Nemotron 3 Nano Omni 30B A3B vs o4-mini (high)](/compare/nemotron-3-nano-omni-30b-a3b-vs-o4-mini-high)
- [o4-mini vs o4-mini (high)](/compare/o4-mini-vs-o4-mini-high)
- [Nemotron 3 Nano Omni 30B A3B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-nemotron-3-nano-omni-30b-a3b)
- [o4-mini vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-o4-mini)

## Explore More

- [Nemotron 3 Nano Omni 30B A3B profile](/models/nemotron-3-nano-omni-30b-a3b)
- [o4-mini profile](/models/o4-mini)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)