# LFM3-1.7B vs LongCat-Flash-Lite-Sparse

> Side-by-side benchmark comparison for LFM3-1.7B and LongCat-Flash-Lite-Sparse across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/lfm3-1-7b-vs-longcat-flash-lite-sparse
- Last updated: October 27, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

LFM3-1.7B leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- LFM3-1.7B has the higher overall point estimate 22.99 to 0. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is SWE Multilingual in Coding, with scores of 23% and 59.3%.
- LongCat-Flash-Lite-Sparse also has the larger context window at 1M.

## Model Snapshot

| Property | LFM3-1.7B | LongCat-Flash-Lite-Sparse |
|----------|----------|----------|
| Creator | LiquidAI | Meituan |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Overall Score | 22.99 | null |
| Benchmarks Covered | 24 | 17 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- LFM3-1.7B public-lane score: 14.4 (Estimated · #123/134)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | LFM3-1.7B | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 41.3% | Coming soon | Coming soon |
| BFCL v4 | 71.4% | Coming soon | Coming soon |
| τ³-bench results | 68.0% | Coming soon | Coming soon |
| WebArena-Verified | 38.4% | Coming soon | Coming soon |
| MCP Atlas | 32.6% | 45.6% | LongCat-Flash-Lite-Sparse |
| ToolSandbox | 80.36% | Coming soon | Coming soon |
| Claw-Eval | 68.6% | Coming soon | Coming soon |
| HLE w/ tools | 13.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 12.9% | Coming soon | Coming soon |
| LiveClaw | 45.60% | 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: Not comparable
- LFM3-1.7B public-lane score: 13 (Estimated · #142/155)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | LFM3-1.7B | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| SciCode | 28.5% | Coming soon | Coming soon |
| SWE-bench Verified | 43.4% | 68.2% | LongCat-Flash-Lite-Sparse |
| SWE Multilingual | 23% | 59.3% | LongCat-Flash-Lite-Sparse |
| Terminal-Bench 2.1 | 12.9% | Coming soon | Coming soon |
| LiveCodeBench v6 | 73.5% | Coming soon | Coming soon |
| LiveCodeBench Pro | 31.7% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 40.6% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 33.7% | Coming soon |

### Reasoning

- Winner: Not comparable
- LFM3-1.7B public-lane score: 61.3 (Unranked · 1 rankable row)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | LFM3-1.7B | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| RULER (128K) | 65.56% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- LFM3-1.7B public-lane score: 25.5 (Estimated · #175/189)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | LFM3-1.7B | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 63.4% | Coming soon | Coming soon |
| GPQA-D | 63.4% | 69.5% | LongCat-Flash-Lite-Sparse |
| HLE | 7.2% | 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 |

### Instruction Following

- Winner: Not comparable
- LFM3-1.7B public-lane score: 71.7 (#76/156)
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | LFM3-1.7B | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 96.7% | Coming soon | Coming soon |
| IFBench | 73.0% | Coming soon | Coming soon |
| Multi-IF | 89.10% | Coming soon | Coming soon |
| IFStruct | 93.72% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- LFM3-1.7B public-lane score: Coming soon
- LongCat-Flash-Lite-Sparse public-lane score: Coming soon

| Benchmark | LFM3-1.7B | LongCat-Flash-Lite-Sparse | Winner |
|-----------|-----------|-----------|--------|
| 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, LFM3-1.7B or LongCat-Flash-Lite-Sparse?

LFM3-1.7B has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### How many benchmarks does LFM3-1.7B cover on BenchLM?

LFM3-1.7B currently has 24 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

- [LFM3-1.7B vs LFM3-1.7B-Base](/compare/lfm3-1-7b-vs-lfm3-1-7b-base)
- [LongCat-Flash-Lite-Sparse vs LFM3-1.7B-Base](/compare/lfm3-1-7b-base-vs-longcat-flash-lite-sparse)
- [LFM3-1.7B vs LFM3-Audio-2B](/compare/lfm3-1-7b-vs-lfm3-audio-2b)
- [LongCat-Flash-Lite-Sparse vs LFM3-Audio-2B](/compare/lfm3-audio-2b-vs-longcat-flash-lite-sparse)

## Explore More

- [LFM3-1.7B profile](/models/lfm3-1-7b)
- [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)