# Hy4 preview vs LongCat-Flash-Lite-Sparse

> Side-by-side benchmark comparison for Hy4 preview and LongCat-Flash-Lite-Sparse across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/hy4-preview-vs-longcat-flash-lite-sparse
- Last updated: September 10, 2026

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

## Quick Verdict

Pick Hy4 preview 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

- Hy4 preview leads overall 61.08 to 0.
- The biggest single benchmark swing is MCP Atlas in Agentic, with scores of 83.7% and 45.6%.

## Model Snapshot

| Property | Hy4 preview | LongCat-Flash-Lite-Sparse |
|----------|----------|----------|
| Creator | Tencent | Meituan |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 61.08 | null |
| Benchmarks Covered | 28 | 17 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Hy4 preview public-lane score: 58.2 (Estimated · #30/152)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | Hy4 preview | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | Coming soon | Coming soon |
| CyberGym | 78.4% | Coming soon | Coming soon |
| WideResearch | 83.9% | Coming soon | Coming soon |
| DRACO | 77.2% | Coming soon | Coming soon |
| MCP Atlas | 83.7% | 45.6% | Hy4 preview |
| Toolathlon-Verified | 74.1% | Coming soon | Coming soon |
| APEX-Agents | 37.1% | Coming soon | Coming soon |
| skillsBench | 62.9% | Coming soon | Coming soon |
| JobBench | 61.7% | Coming soon | Coming soon |
| Agents' Last Exam | 22.8% | Coming soon | Coming soon |
| AutomationBench | 32.1% | Coming soon | Coming soon |
| BankerToolBench | 78.6% | Coming soon | Coming soon |
| HLE w/ tools | 55.4% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 33.7% | Coming soon |
| VITA-Bench | Coming soon | 21.7% | Coming soon |
| BrowseComp | Coming soon | 48.6% | Coming soon |

### Coding

- Winner: Coming soon
- Hy4 preview public-lane score: 59.2 (Estimated · #24/151)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | Hy4 preview | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | Coming soon | Coming soon |
| SWE-bench Pro | 65.7% | 40.6% | Hy4 preview |
| SWE Multilingual | 82.9% | 59.3% | Hy4 preview |
| DeepSWE | 64.3% | Coming soon | Coming soon |
| NL2Repo | 58.9% | Coming soon | Coming soon |
| ProgramBench | 17.5% | Coming soon | Coming soon |
| PostTrain Bench | 35.6% | Coming soon | Coming soon |
| sweMarathon | 31.9% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 68.2% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 33.7% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Hy4 preview public-lane score: 84.8 (Unranked · 1 rankable row)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | Hy4 preview | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | Coming soon | Coming soon |

### Reasoning

- Winner: Coming soon
- Hy4 preview public-lane score: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | Hy4 preview | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 16.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- Hy4 preview public-lane score: 56.5 (Estimated · #47/183)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | Hy4 preview | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.3% | Coming soon | Coming soon |
| GPQA-D | 92.3% | 69.5% | Hy4 preview |
| HLE | 55.4% | Coming soon | Coming soon |
| HLE w/o tools | 43.4% | Coming soon | Coming soon |
| MMLU | Coming soon | 85.3% | Coming soon |
| MMLU-Pro | Coming soon | 79.2% | Coming soon |
| CMMLU | Coming soon | 84.3% | Coming soon |
| C-Eval | Coming soon | 85.8% | Coming soon |

### Mathematics

- Winner: Coming soon
- Hy4 preview public-lane score: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | Hy4 preview | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| Apex | 74.2% | Coming soon | Coming soon |
| MATH-500 | Coming soon | 95.8% | Coming soon |
| AIME26 | Coming soon | 65.7% | Coming soon |
| HMMT Feb 2026 | Coming soon | 40.5% | Coming soon |
| IMOAnswerBench | Coming soon | 49.4% | Coming soon |

## FAQ

### Which is better overall, Hy4 preview or LongCat-Flash-Lite-Sparse?

Hy4 preview is ahead overall on BenchLM right now.

### How many benchmarks does Hy4 preview cover on BenchLM?

Hy4 preview currently has 28 sourced benchmark scores on BenchLM.

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

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

## Related Comparisons

- [Hy4 preview vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-hy4-preview)
- [LongCat-Flash-Lite-Sparse vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-longcat-flash-lite-sparse)
- [Hy4 preview vs GPT-6 Astra](/compare/gpt-6-astra-vs-hy4-preview)
- [LongCat-Flash-Lite-Sparse vs GPT-6 Astra](/compare/gpt-6-astra-vs-longcat-flash-lite-sparse)

## Explore More

- [Hy4 preview profile](/models/hy4-preview)
- [LongCat-Flash-Lite-Sparse profile](/models/longcat-flash-lite-sparse)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)