# Mercury 2.5 vs Nemotron 3 Nano Omni 30B A3B

> Side-by-side benchmark comparison for Mercury 2.5 and Nemotron 3 Nano Omni 30B A3B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mercury-2-5-vs-nemotron-3-nano-omni-30b-a3b
- Last updated: September 8, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Mercury 2.5 and Nemotron 3 Nano Omni 30B A3B share only 3 sourced benchmark rows.

## Summary

- Only 3 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.
- Mercury 2.5 has the larger published context window at 260K.

## Model Snapshot

| Property | Mercury 2.5 | Nemotron 3 Nano Omni 30B A3B |
|----------|----------|----------|
| Creator | Inception | NVIDIA |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 260K | 256K |
| Independent public score (not head-to-head) | null | 41.13 |
| Benchmarks Covered | 5 | 16 |
| Pricing (input/output) | $0.04 / $0.15 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 44.5 (Estimated · #91/152)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 44.9 (Estimated · #90/152)

| Benchmark | Mercury 2.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 96.0% | Coming soon | Coming soon |
| DeepSearchQA | 34.0% | 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
- Mercury 2.5 public-lane score: 47.8 (Estimated · #73/151)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 40.8 (Estimated · #115/151)

| Benchmark | Mercury 2.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| SciCode | 38% | 32% | Mercury 2.5 |
| LiveCodeBench v5 | Coming soon | 63.2% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: Coming soon
- Nemotron 3 Nano Omni 30B A3B public-lane score: 39.3 (#42/48)

| Benchmark | Mercury 2.5 | 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
- Mercury 2.5 public-lane score: 67.7 (Unranked · 1 rankable row)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 48.3 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 48.3 (Estimated · #94/182)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 39 (Supported · #143/182)

| Benchmark | Mercury 2.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 79.0% | 72.2% | Mercury 2.5 |
| MMLU-Pro | Coming soon | 77.3% | Coming soon |
| GPQA | Coming soon | 72.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: 80.1 (#53/121)
- Nemotron 3 Nano Omni 30B A3B public-lane score: 75.9 (#58/121)

| Benchmark | Mercury 2.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 77% | 74.2% | Mercury 2.5 |

### Mathematics

- Winner: Insufficient shared evidence
- Mercury 2.5 public-lane score: Coming soon
- Nemotron 3 Nano Omni 30B A3B public-lane score: Coming soon

| Benchmark | Mercury 2.5 | Nemotron 3 Nano Omni 30B A3B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | Coming soon | 82.1% | Coming soon |

## FAQ

### Is there enough evidence to pick between Mercury 2.5 and Nemotron 3 Nano Omni 30B A3B?

Not yet. The models share only 3 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

- [Mercury 2.5 vs Mercury 2.5 Preview](/compare/mercury-2-5-vs-mercury-2-5-preview)
- [Nemotron 3 Nano Omni 30B A3B vs Mercury 2.5 Preview](/compare/mercury-2-5-preview-vs-nemotron-3-nano-omni-30b-a3b)
- [Mercury 2.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mercury-2-5)
- [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

- [Mercury 2.5 profile](/models/mercury-2-5)
- [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)