# LongCat-Flash-Lite-Sparse vs Nemotron 3 Ultra

> Side-by-side benchmark comparison for LongCat-Flash-Lite-Sparse and Nemotron 3 Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/longcat-flash-lite-sparse-vs-nemotron-3-ultra
- Last updated: September 10, 2026

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

## Quick Verdict

Pick Nemotron 3 Ultra if you want the stronger benchmark profile. LongCat-Flash-Lite-Sparse only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Nemotron 3 Ultra leads overall 40.51 to 0.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 33.7% and 56.4%.

## Model Snapshot

| Property | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra |
|----------|----------|----------|
| Creator | Meituan | NVIDIA |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | 40.51 |
| Benchmarks Covered | 17 | 24 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 27 (Supported · #143/152)

| Benchmark | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 33.7% | 56.4% | Nemotron 3 Ultra |
| VITA-Bench | 21.7% | Coming soon | Coming soon |
| MCP Atlas | 45.6% | Coming soon | Coming soon |
| BrowseComp | 48.6% | 44.4% | LongCat-Flash-Lite-Sparse |
| PinchBench | Coming soon | 90.0% | Coming soon |
| τ³-bench results | Coming soon | 70.9% | Coming soon |
| HLE w/ tools | Coming soon | 37.4% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 50.9% | Coming soon |

### Coding

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 26.6 (Supported · #145/151)

| Benchmark | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 68.2% | 71.9% | Nemotron 3 Ultra |
| SWE-bench Pro | 40.6% | Coming soon | Coming soon |
| SWE Multilingual | 59.3% | 67.7% | Nemotron 3 Ultra |
| Terminal-Bench 2.0 | 33.7% | 56.4% | Nemotron 3 Ultra |
| LiveCodeBench v6 | Coming soon | 89.0% | Coming soon |
| SciCode | Coming soon | 44.6% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 86.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 69.0% | Coming soon |

### Reasoning

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 48.7 (Unranked · 1 rankable row)

| Benchmark | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 3.1% | Coming soon |
| LongBench v2 | Coming soon | 61.9% | Coming soon |

### Knowledge

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 44.7 (Estimated · #111/183)

| Benchmark | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 85.3% | Coming soon | Coming soon |
| MMLU-Pro | 79.2% | 86.8% | Nemotron 3 Ultra |
| CMMLU | 84.3% | Coming soon | Coming soon |
| C-Eval | 85.8% | Coming soon | Coming soon |
| GPQA-D | 69.5% | 87.0% | Nemotron 3 Ultra |
| GPQA | Coming soon | 87% | Coming soon |
| HLE | Coming soon | 26.7% | Coming soon |
| HLE w/o tools | Coming soon | 26.7% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 86.1% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 85.8% | Coming soon |

### Instruction Following

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 88.8 (#28/123)

| Benchmark | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 81.7% | Coming soon |

### Multilingual

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: 47.4 (#7/12)

| Benchmark | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 83% | Coming soon |

### Mathematics

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Nemotron 3 Ultra public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Nemotron 3 Ultra | Winner |
|-----------|-----------|-----------|--------|
| MATH-500 | 95.8% | Coming soon | Coming soon |
| AIME26 | 65.7% | Coming soon | Coming soon |
| HMMT Feb 2026 | 40.5% | Coming soon | Coming soon |
| IMOAnswerBench | 49.4% | Coming soon | Coming soon |

## FAQ

### Which is better overall, LongCat-Flash-Lite-Sparse or Nemotron 3 Ultra?

Nemotron 3 Ultra is ahead overall on BenchLM right now.

### How many benchmarks does LongCat-Flash-Lite-Sparse cover on BenchLM?

LongCat-Flash-Lite-Sparse currently has 17 sourced benchmark scores on BenchLM.

### How many benchmarks does Nemotron 3 Ultra cover on BenchLM?

Nemotron 3 Ultra currently has 24 sourced benchmark scores on BenchLM.

## Related Comparisons

- [LongCat-Flash-Lite-Sparse vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-longcat-flash-lite-sparse)
- [Nemotron 3 Ultra vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-nemotron-3-ultra)
- [LongCat-Flash-Lite-Sparse vs GPT-6 Astra](/compare/gpt-6-astra-vs-longcat-flash-lite-sparse)
- [Nemotron 3 Ultra vs GPT-6 Astra](/compare/gpt-6-astra-vs-nemotron-3-ultra)

## Explore More

- [LongCat-Flash-Lite-Sparse profile](/models/longcat-flash-lite-sparse)
- [Nemotron 3 Ultra profile](/models/nemotron-3-ultra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)