# LongCat-Flash-Lite-Sparse vs Beam

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

- Canonical page: https://benchlm.ai/compare/longcat-flash-lite-sparse-vs-reflection-beam
- Last updated: October 5, 2026

- Shared sourced benchmarks: 7
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## 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 Beam are tied on overall score, so the decision depends on category fit rather than the headline number.
- The biggest single benchmark swing is MCP Atlas in Agentic, with scores of 45.6% and 78.7%.
- Beam is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- LongCat-Flash-Lite-Sparse also has the larger context window at 1M.

## Model Snapshot

| Property | LongCat-Flash-Lite-Sparse | Beam |
|----------|----------|----------|
| Creator | Meituan | Reflection AI |
| Type | Open Weight | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | null |
| Overall Score | null | null |
| Benchmarks Covered | 17 | 16 |
| Pricing (input/output) | $0.00 / $0.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Beam | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 33.7% | Coming soon | Coming soon |
| VITA-Bench | 21.7% | Coming soon | Coming soon |
| MCP Atlas | 45.6% | 78.7% | Beam |
| BrowseComp | 48.6% | 77.4% | Beam |
| Terminal-Bench 2.1 | Coming soon | 80.1% | Coming soon |
| DeepSearchQA | Coming soon | 80.1% | Coming soon |

### Coding

- Winner: Not comparable
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Beam | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 68.2% | 80.9% | Beam |
| SWE-bench Pro | 40.6% | 65.5% | Beam |
| SWE Multilingual | 59.3% | 78% | Beam |
| Terminal-Bench 2.0 | 33.7% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 44.4% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.1% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 34.6% | Coming soon |
| SciCode | Coming soon | 49.7% | Coming soon |

### Reasoning

- Winner: Not comparable
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Beam | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 65.5% | Coming soon |

### Knowledge

- Winner: Not comparable
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Beam | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 85.3% | Coming soon | Coming soon |
| MMLU-Pro | 79.2% | Coming soon | Coming soon |
| CMMLU | 84.3% | Coming soon | Coming soon |
| C-Eval | 85.8% | Coming soon | Coming soon |
| GPQA-D | 69.5% | 90.5% | Beam |
| HLE w/o tools | Coming soon | 36.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Beam | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.7% | Coming soon |

### Mathematics

- Winner: Not comparable
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon
- Beam public-lane score: Coming soon

| Benchmark | LongCat-Flash-Lite-Sparse | Beam | Winner |
|-----------|-----------|-----------|--------|
| MATH-500 | 95.8% | Coming soon | Coming soon |
| AIME26 | 65.7% | 97.8% | Beam |
| 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 Beam?

LongCat-Flash-Lite-Sparse and Beam 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 Beam cover on BenchLM?

Beam currently has 16 sourced benchmark scores on BenchLM.

## Related Comparisons

- [LongCat-Flash-Lite-Sparse vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-longcat-flash-lite-sparse)
- [Beam vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-reflection-beam)
- [LongCat-Flash-Lite-Sparse vs GPT-6 Astra](/compare/gpt-6-astra-vs-longcat-flash-lite-sparse)
- [Beam vs GPT-6 Astra](/compare/gpt-6-astra-vs-reflection-beam)

## Explore More

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