# LongCat-Flash-Lite-Sparse vs Solar Open 2

> Side-by-side benchmark comparison for LongCat-Flash-Lite-Sparse and Solar Open 2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/longcat-flash-lite-sparse-vs-solar-open-2
- Last updated: September 10, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Treat this as a split decision: use the category and benchmark breakdown to decide which profile better matches your workload.

## Summary

- LongCat-Flash-Lite-Sparse and Solar Open 2 are tied on overall score, so the decision depends on category fit rather than the headline number.
- The biggest single benchmark swing is HMMT Feb 2026 in Mathematics, with scores of 40.5% and 93.9%.

## Model Snapshot

| Property | LongCat-Flash-Lite-Sparse | Solar Open 2 |
|----------|----------|----------|
| Creator | Meituan | Upstage |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 17 | 11 |
| 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
- Solar Open 2 public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 33.7% | Coming soon | Coming soon |
| VITA-Bench | 21.7% | Coming soon | Coming soon |
| MCP Atlas | 45.6% | 58.2% | Solar Open 2 |
| BrowseComp | 48.6% | Coming soon | Coming soon |
| terminalBenchHard | Coming soon | 28.3% | Coming soon |
| APEX-Agents | Coming soon | 16.6% | Coming soon |

### Coding

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 68.2% | 70.4% | Solar Open 2 |
| SWE-bench Pro | 40.6% | Coming soon | Coming soon |
| SWE Multilingual | 59.3% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 33.7% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.4% | Coming soon |

### Knowledge

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 85.3% | Coming soon | Coming soon |
| MMLU-Pro | 79.2% | 86.2% | Solar Open 2 |
| CMMLU | 84.3% | Coming soon | Coming soon |
| C-Eval | 85.8% | Coming soon | Coming soon |
| GPQA-D | 69.5% | 86.3% | Solar Open 2 |
| HLE w/o tools | Coming soon | 28.8% | Coming soon |

### Instruction Following

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 80% | Coming soon |

### Mathematics

- Winner: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| MATH-500 | 95.8% | Coming soon | Coming soon |
| AIME26 | 65.7% | 95.7% | Solar Open 2 |
| HMMT Feb 2026 | 40.5% | 93.9% | Solar Open 2 |
| IMOAnswerBench | 49.4% | Coming soon | Coming soon |

## FAQ

### Which is better overall, LongCat-Flash-Lite-Sparse or Solar Open 2?

LongCat-Flash-Lite-Sparse and Solar Open 2 are tied on overall score in the current BenchLM data.

### 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 Solar Open 2 cover on BenchLM?

Solar Open 2 currently has 11 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)
- [Solar Open 2 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-solar-open-2)
- [LongCat-Flash-Lite-Sparse vs GPT-6 Astra](/compare/gpt-6-astra-vs-longcat-flash-lite-sparse)
- [Solar Open 2 vs GPT-6 Astra](/compare/gpt-6-astra-vs-solar-open-2)

## Explore More

- [LongCat-Flash-Lite-Sparse profile](/models/longcat-flash-lite-sparse)
- [Solar Open 2 profile](/models/solar-open-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)