# GPT-5.6 Terra vs Nemotron 3.5 Lightning 30B A3B NVFP4

> Side-by-side benchmark comparison for GPT-5.6 Terra 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-5-6-terra-vs-nemotron-3-5-lightning-30b-a3b-nvfp4
- Last updated: September 24, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick GPT-5.6 Terra if you want the stronger benchmark profile. Nemotron 3.5 Lightning 30B A3B NVFP4 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- GPT-5.6 Terra leads overall 72.58 to 19.1.
- The clearest category separation is in coding, where the averages are 64.7 for GPT-5.6 Terra and 11.4 for Nemotron 3.5 Lightning 30B A3B NVFP4.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 87.4% and 23.5%.
- Nemotron 3.5 Lightning 30B A3B NVFP4 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-5.6 Terra also has the larger context window at 1.05M.

## Model Snapshot

| Property | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 |
|----------|----------|----------|
| Creator | OpenAI | NVIDIA |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 1M |
| Overall Score | 72.58 | 19.1 |
| Benchmarks Covered | 32 | 13 |
| Pricing (input/output) | $2.00 / $12.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- GPT-5.6 Terra public-lane score: 59.5 (Supported · #18/105)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 7.3 (Estimated · #104/105)

| Benchmark | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 20.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 87.4% | 23.5% | GPT-5.6 Terra |
| BrowseComp | 87.5% | 36.8% | GPT-5.6 Terra |
| OSWorld 2.0 | 50.2% | Coming soon | Coming soon |
| CyberGym | 81.8% | Coming soon | Coming soon |
| ExploitGym | 23.2% | Coming soon | Coming soon |
| Toolathlon | 53.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 77.5% | Coming soon | Coming soon |
| ApprenticeBench | 16% | Coming soon | Coming soon |
| PinchBench | Coming soon | 83.4% | Coming soon |
| τ³-bench results | Coming soon | 9.5% | Coming soon |

### Coding

- Winner: Directional only
- GPT-5.6 Terra public-lane score: 64.7 (Supported · #8/135)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 11.4 (Estimated · #135/135)

| Benchmark | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 63.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 87.4% | 23.5% | GPT-5.6 Terra |
| DeepSWE | 69.6% | Coming soon | Coming soon |
| FrontierCode 1.1 Extended | 55.8% | Coming soon | Coming soon |
| cursorBench32 | 64.9% | Coming soon | Coming soon |
| VulcanBench v3 | 87.0% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.9% | Coming soon | Coming soon |
| SWE-bench (Vals) | 95.4% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 52.8% | Coming soon |
| SWE Multilingual | Coming soon | 36.5% | Coming soon |
| SciCode | Coming soon | 31.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-5.6 Terra public-lane score: 65.4 (#12/19)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 55.9 (Unranked · 1 rankable row)

| Benchmark | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 83.9% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.8% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-5.6 Terra public-lane score: 77.2 (#16/50)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: Coming soon

| Benchmark | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 80.7% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 82% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- GPT-5.6 Terra public-lane score: 71.1 (Supported · #9/158)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 20.7 (Estimated · #154/158)

| Benchmark | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.9% | 75.6% | GPT-5.6 Terra |
| GPQA-D | 92.9% | 75.6% | GPT-5.6 Terra |
| HLE-Verified | 51.1% | Coming soon | Coming soon |
| LABBench2 | 81.2% | Coming soon | Coming soon |
| HealthBench Professional | 57.7% | Coming soon | Coming soon |
| HealthBench Hard | 32.7% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 90.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.7% | Coming soon | Coming soon |
| HLE w/o tools | Coming soon | 10.5% | Coming soon |
| MMLU-Pro | Coming soon | 81.6% | Coming soon |

### Instruction Following

- Winner: Directional only
- GPT-5.6 Terra public-lane score: 85.7 (#35/124)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 68.5 (#67/124)

| Benchmark | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 72.9% | Coming soon |

### Mathematics

- Winner: Not comparable
- GPT-5.6 Terra public-lane score: 96.8 (Unranked · 3 rankable rows)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: Coming soon

| Benchmark | GPT-5.6 Terra | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath (legacy) | 84.9% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 84.900% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 68.300% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GPT-5.6 Terra or Nemotron 3.5 Lightning 30B A3B NVFP4?

GPT-5.6 Terra is ahead overall on BenchLM right now.

### Where is the biggest gap between GPT-5.6 Terra and Nemotron 3.5 Lightning 30B A3B NVFP4?

The widest category gap is in coding, where the averages are 64.7 for GPT-5.6 Terra and 11.4 for Nemotron 3.5 Lightning 30B A3B NVFP4.

### How many benchmarks does GPT-5.6 Terra cover on BenchLM?

GPT-5.6 Terra currently has 32 sourced benchmark scores on BenchLM.

### How many benchmarks does Nemotron 3.5 Lightning 30B A3B NVFP4 cover on BenchLM?

Nemotron 3.5 Lightning 30B A3B NVFP4 currently has 13 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-5.6 Terra vs GPT-5.6 Sol](/compare/gpt-5-6-sol-vs-gpt-5-6-terra)
- [Nemotron 3.5 Lightning 30B A3B NVFP4 vs GPT-5.6 Sol](/compare/gpt-5-6-sol-vs-nemotron-3-5-lightning-30b-a3b-nvfp4)
- [GPT-5.6 Terra vs GPT-5.6 Luna](/compare/gpt-5-6-luna-vs-gpt-5-6-terra)
- [Nemotron 3.5 Lightning 30B A3B NVFP4 vs GPT-5.6 Luna](/compare/gpt-5-6-luna-vs-nemotron-3-5-lightning-30b-a3b-nvfp4)

## Explore More

- [GPT-5.6 Terra profile](/models/gpt-5-6-terra)
- [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)