# Nemotron 3 Nano Omni 30B A3B vs o3

> Side-by-side benchmark comparison for Nemotron 3 Nano Omni 30B A3B and o3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/nemotron-3-nano-omni-30b-a3b-vs-o3
- Last updated: September 10, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Nemotron 3 Nano Omni 30B A3B and o3.

## Summary

- Nemotron 3 Nano Omni 30B A3B and o3 do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Nemotron 3 Nano Omni 30B A3B | o3 |
|----------|----------|----------|
| Creator | NVIDIA | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 200K |
| Independent public score (not head-to-head) | 40.6 | 47.55 |
| Benchmarks Covered | 16 | 2 |
| Pricing (input/output) | $0.00 / $0.00 | $2.00 / $8.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 44.3 (Estimated · #90/152)
- o3 public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o3 | 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: 40.2 (Estimated · #116/151)
- o3 public-lane score: Coming soon

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o3 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v5 | 63.2% | Coming soon | Coming soon |
| SciCode | 32% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 39.3 (#42/48)
- o3 public-lane score: 63.3 (Unranked · 1 rankable row)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o3 | Winner |
|-----------|-----------|-----------|--------|
| 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 |

### Reasoning

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 48.3 (Unranked · 2 rankable rows)
- o3 public-lane score: 72.3 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 38.7 (Supported · #143/183)
- o3 public-lane score: 49 (Estimated · #87/183)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o3 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 77.3% | Coming soon | Coming soon |
| GPQA | 72.2% | Coming soon | Coming soon |
| GPQA-D | 72.2% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: 75.9 (#59/123)
- o3 public-lane score: 87.4 (#33/123)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o3 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 74.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon
- o3 public-lane score: 37.8 (Unranked · 2 rankable rows)

| Benchmark | Nemotron 3 Nano Omni 30B A3B | o3 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 82.1% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 18.685% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 2.083% | Coming soon |

## FAQ

### Can I compare Nemotron 3 Nano Omni 30B A3B and o3 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Nemotron 3 Nano Omni 30B A3B vs o3-pro](/compare/nemotron-3-nano-omni-30b-a3b-vs-o3-pro)
- [o3 vs o3-pro](/compare/o3-vs-o3-pro)
- [Nemotron 3 Nano Omni 30B A3B vs o3-mini](/compare/nemotron-3-nano-omni-30b-a3b-vs-o3-mini)
- [o3 vs o3-mini](/compare/o3-vs-o3-mini)

## Explore More

- [Nemotron 3 Nano Omni 30B A3B profile](/models/nemotron-3-nano-omni-30b-a3b)
- [o3 profile](/models/o3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)