# Kimi K2.5 (Reasoning) vs Nemotron 3.5 Lightning 30B A3B NVFP4

> Side-by-side benchmark comparison for Kimi K2.5 (Reasoning) and Nemotron 3.5 Lightning 30B A3B NVFP4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-k2-5-reasoning-vs-nemotron-3-5-lightning-30b-a3b-nvfp4
- Last updated: September 24, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Kimi K2.5 (Reasoning) 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

- Kimi K2.5 (Reasoning) leads overall 55 to 19.1.
- The biggest single benchmark swing is SWE-bench Verified in Coding, with scores of 76.8% and 52.8%.
- 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.
- Nemotron 3.5 Lightning 30B A3B NVFP4 also has the larger context window at 1M.

## Model Snapshot

| Property | Kimi K2.5 (Reasoning) | Nemotron 3.5 Lightning 30B A3B NVFP4 |
|----------|----------|----------|
| Creator | Moonshot AI | NVIDIA |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 1M |
| Overall Score | null | 19.1 |
| Benchmarks Covered | 9 | 13 |
| Pricing (input/output) | $0.60 / $3.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 7.3 (Estimated · #104/105)

| Benchmark | Kimi K2.5 (Reasoning) | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 50.8% | Coming soon | Coming soon |
| BrowseComp | 60.6% | 36.8% | Kimi K2.5 (Reasoning) |
| Gert Labs | 32.58% | Coming soon | Coming soon |
| 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: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 11.4 (Estimated · #135/135)

| Benchmark | Kimi K2.5 (Reasoning) | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 76.8% | 52.8% | Kimi K2.5 (Reasoning) |
| Vibe Code Bench | 17.54% | Coming soon | 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: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 55.9 (Unranked · 1 rankable row)

### Multimodal & Grounded

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: 63.3 (Unranked · 1 rankable row)
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: Coming soon

| Benchmark | Kimi K2.5 (Reasoning) | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 78.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 20.7 (Estimated · #154/158)

| Benchmark | Kimi K2.5 (Reasoning) | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87.6% | 75.6% | Kimi K2.5 (Reasoning) |
| MMLU-Pro | 87.1% | 81.6% | Kimi K2.5 (Reasoning) |
| GPQA-D | Coming soon | 75.6% | Coming soon |
| HLE w/o tools | Coming soon | 10.5% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: 68.5 (#67/124)

| Benchmark | Kimi K2.5 (Reasoning) | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 72.9% | Coming soon |

### Mathematics

- Winner: Not comparable
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- Nemotron 3.5 Lightning 30B A3B NVFP4 public-lane score: Coming soon

| Benchmark | Kimi K2.5 (Reasoning) | Nemotron 3.5 Lightning 30B A3B NVFP4 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 96.1% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Kimi K2.5 (Reasoning) or Nemotron 3.5 Lightning 30B A3B NVFP4?

Kimi K2.5 (Reasoning) is ahead overall on BenchLM right now.

### How many benchmarks does Kimi K2.5 (Reasoning) cover on BenchLM?

Kimi K2.5 (Reasoning) currently has 9 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

- [Kimi K2.5 (Reasoning) vs Kimi K2.5](/compare/kimi-k2-5-vs-kimi-k2-5-reasoning)
- [Nemotron 3.5 Lightning 30B A3B NVFP4 vs Kimi K2.5](/compare/kimi-k2-5-vs-nemotron-3-5-lightning-30b-a3b-nvfp4)
- [Kimi K2.5 (Reasoning) vs GPT-6 Astra](/compare/gpt-6-astra-vs-kimi-k2-5-reasoning)
- [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

- [Kimi K2.5 (Reasoning) profile](/models/kimi-k2-5-reasoning)
- [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)