# GPT-5.5 Pro vs Nemotron 3.5 Lightning 30B A3B NVFP4

> Side-by-side benchmark comparison for GPT-5.5 Pro and Nemotron 3.5 Lightning 30B A3B NVFP4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-5-pro-vs-nemotron-3-5-lightning-30b-a3b-nvfp4
- Last updated: September 24, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: GPT-5.5 Pro and Nemotron 3.5 Lightning 30B A3B NVFP4 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 3.5 Lightning 30B A3B NVFP4 has the lower published output-token price.

## Model Snapshot

| Property | GPT-5.5 Pro | Nemotron 3.5 Lightning 30B A3B NVFP4 |
|----------|----------|----------|
| Creator | OpenAI | NVIDIA |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 72.42 | 19.1 |
| Benchmarks Covered | 8 | 13 |
| Pricing (input/output) | $30.00 / $180.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-5.5 Pro public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 7.3 (Estimated · #104/105)

| Benchmark | GPT-5.5 Pro | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| BrowseComp | 90.1% | 36.8% | GPT-5.5 Pro |
| Terminal-Bench 2.1 | Coming soon | 23.5% | Coming soon |
| PinchBench | Coming soon | 83.4% | Coming soon |
| τ³-bench results | Coming soon | 9.5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-5.5 Pro public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 11.4 (Estimated · #135/135)

| Benchmark | GPT-5.5 Pro | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | Coming soon | 52.8% | Coming soon |
| SWE Multilingual | Coming soon | 36.5% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 23.5% | Coming soon |
| SciCode | Coming soon | 31.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-5.5 Pro public-lane score: 75 (Unranked · 3 rankable rows)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 55.9 (Unranked · 1 rankable row)

| Benchmark | GPT-5.5 Pro | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 95.00% | Coming soon | Coming soon |
| ARC-AGI-2 | 84.2% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-5.5 Pro public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 20.7 (Estimated · #154/158)

| Benchmark | GPT-5.5 Pro | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| HLE | 57.2% | Coming soon | Coming soon |
| HLE w/o tools | 43.1% | 10.5% | GPT-5.5 Pro |
| GPQA | Coming soon | 75.6% | Coming soon |
| GPQA-D | Coming soon | 75.6% | Coming soon |
| MMLU-Pro | Coming soon | 81.6% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-5.5 Pro public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 68.5 (#67/124)

| Benchmark | GPT-5.5 Pro | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 72.9% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- GPT-5.5 Pro public-lane score: 70.1 (Unranked · 3 rankable rows)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: Coming soon

| Benchmark | GPT-5.5 Pro | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 52.4% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 51.000% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 39.600% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between GPT-5.5 Pro and Nemotron 3.5 Lightning 30B A3B NVFP4?

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

- [GPT-5.5 Pro vs GPT-5.5](/compare/gpt-5-5-vs-gpt-5-5-pro)
- [Nemotron 3.5 Lightning 30B A3B NVFP4 vs GPT-5.5](/compare/gpt-5-5-vs-nemotron-3-5-lightning-30b-a3b-nvfp4)
- [GPT-5.5 Pro vs GPT-6 Astra](/compare/gpt-5-5-pro-vs-gpt-6-astra)
- [Nemotron 3.5 Lightning 30B A3B NVFP4 vs GPT-6 Astra](/compare/gpt-6-astra-vs-nemotron-3-5-lightning-30b-a3b-nvfp4)

## Explore More

- [GPT-5.5 Pro profile](/models/gpt-5-5-pro)
- [Nemotron 3.5 Lightning 30B A3B NVFP4 profile](/models/nemotron-3-5-lightning-30b-a3b-nvfp4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)