# Claude Sonnet 4.5 vs Nemotron 3 Nano Omni 30B A3B

> Side-by-side benchmark comparison for Claude Sonnet 4.5 and Nemotron 3 Nano Omni 30B A3B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-sonnet-4-5-vs-nemotron-3-nano-omni-30b-a3b
- Last updated: September 10, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Sonnet 4.5 and Nemotron 3 Nano Omni 30B A3B share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are 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 | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B |
|----------|----------|----------|
| Creator | Anthropic | NVIDIA |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 200K | 256K |
| Independent public score (not head-to-head) | 53.82 | 40.6 |
| Benchmarks Covered | 11 | 16 |
| Pricing (input/output) | $3.00 / $15.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 public-lane score: 44.2 (Estimated · #91/152)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 44.3 (Estimated · #90/152)

| Benchmark | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 50% | Coming soon | Coming soon |
| OSWorld-Verified | 61.4% | Coming soon | Coming soon |
| VITA-Bench | 17.0% | Coming soon | Coming soon |
| Gert Labs | 48.51% | Coming soon | Coming soon |
| JobBench | 27.7% | Coming soon | Coming soon |
| OSWorld | Coming soon | 47.4% | Coming soon |
| τ²-bench results | Coming soon | 45.3% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 public-lane score: 50.6 (Estimated · #54/151)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 40.2 (Estimated · #116/151)

| Benchmark | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.2% | Coming soon | Coming soon |
| LiveCodeBench v5 | Coming soon | 63.2% | Coming soon |
| SciCode | Coming soon | 32% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 public-lane score: Coming soon
- Nemotron 3 Nano Omni 30B A3B public-lane score: 39.3 (#42/48)

| Benchmark | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| MMMU | Coming soon | 70.8% | Coming soon |
| MMLongBench-Doc | Coming soon | 57.5% | Coming soon |
| CharXiv | Coming soon | 76.3% | Coming soon |
| ScreenSpot Pro | Coming soon | 57.8% | Coming soon |
| Video-MME (w/o subtitle) | Coming soon | 72.2% | Coming soon |
| AI2D_TEST | Coming soon | 88.5% | Coming soon |
| RefCOCO (avg) | Coming soon | 90.5% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 public-lane score: 19.1 (Unranked · 1 rankable row)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 48.3 (Unranked · 2 rankable rows)

| Benchmark | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 13.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 public-lane score: 51.2 (Estimated · #73/183)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 38.7 (Supported · #143/183)

| Benchmark | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 83.4% | 72.2% | Claude Sonnet 4.5 |
| MMLU-Pro | Coming soon | 77.3% | Coming soon |
| GPQA-D | Coming soon | 72.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 public-lane score: Coming soon
- Nemotron 3 Nano Omni 30B A3B public-lane score: 75.9 (#59/123)

| Benchmark | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 74.2% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude Sonnet 4.5 public-lane score: 34.8 (Unranked · 2 rankable rows)
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon

| Benchmark | Claude Sonnet 4.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 87% | 82.1% | Claude Sonnet 4.5 |
| FrontierMath v2 (Tiers 1-3) | 13.495% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 4.167% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Sonnet 4.5 and Nemotron 3 Nano Omni 30B A3B?

Not yet. The models share only 2 sourced benchmark rows, 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

- [Claude Sonnet 4.5 vs Claude Sonnet 4.5 Thinking](/compare/claude-sonnet-4-5-vs-claude-sonnet-4-5-thinking)
- [Nemotron 3 Nano Omni 30B A3B vs Claude Sonnet 4.5 Thinking](/compare/claude-sonnet-4-5-thinking-vs-nemotron-3-nano-omni-30b-a3b)
- [Claude Sonnet 4.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-claude-sonnet-4-5)
- [Nemotron 3 Nano Omni 30B A3B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-nemotron-3-nano-omni-30b-a3b)

## Explore More

- [Claude Sonnet 4.5 profile](/models/claude-sonnet-4-5)
- [Nemotron 3 Nano Omni 30B A3B profile](/models/nemotron-3-nano-omni-30b-a3b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)