# LongCat-2.5 vs Muse Spark 1.3

> Side-by-side benchmark comparison for LongCat-2.5 and Muse Spark 1.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/longcat-2-5-vs-muse-spark-1-3
- Last updated: November 9, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Muse Spark 1.3 if you want the stronger benchmark profile. LongCat-2.5 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Muse Spark 1.3 leads overall 70 to 0.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 64.6% and 75.4%.
- LongCat-2.5 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | LongCat-2.5 | Muse Spark 1.3 |
|----------|----------|----------|
| Creator | Meituan | Meta |
| Type | Open Weight | Proprietary |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 22 | 21 |
| Pricing (input/output) | $0.30 / $1.20 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.4% | 88.8% | Muse Spark 1.3 |
| Terminal-Bench 4.0 | 38.50% | Coming soon | Coming soon |
| BrowseComp | 91.9% | Coming soon | Coming soon |
| AutomationBench | 51.8% | 49.4% | LongCat-2.5 |
| HLE w/ tools | 63.1% | Coming soon | Coming soon |
| Agents' Last Exam | 38.5% | Coming soon | Coming soon |
| MCP Atlas | 83.1% | Coming soon | Coming soon |
| JobBench | 65.4% | 64.9% | LongCat-2.5 |
| skillsBench | 63.3% | Coming soon | Coming soon |
| SpreadsheetBench 2 | 34.9% | Coming soon | Coming soon |
| Claw-Eval | 78.3% | Coming soon | Coming soon |
| Terminal-Bench 4.1 | Coming soon | 14.90% | Coming soon |
| OSWorld 2.0 | Coming soon | 66.9% | Coming soon |
| DeepSearchQA | Coming soon | 89.4% | Coming soon |
| ApprenticeBench | Coming soon | 19% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 72.3% | Coming soon |
| CWE-bench v1 | Coming soon | 55.0% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |

### Coding

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.4% | 88.8% | Muse Spark 1.3 |
| ProgramBench | 25.5% | Coming soon | Coming soon |
| DeepSWE | 64.6% | 75.4% | Muse Spark 1.3 |
| PaperBench | 82.1% | Coming soon | Coming soon |
| SWE-Atlas Codebase QnA | 58.3% | 59.4% | Muse Spark 1.3 |
| NL2Repo | 60.5% | Coming soon | Coming soon |
| CursorBench 4.0 | Coming soon | 41.6% | Coming soon |
| Bug Hunt Bench | Coming soon | 32.2 fixes | Coming soon |
| FrontierSWE v2 | Coming soon | 25.8% | Coming soon |

### Reasoning

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 256K-512K | Coming soon | 98.5% | Coming soon |
| MRCR v2 512K-1M | Coming soon | 98.1% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Vision2Web | 78.6% | Coming soon | Coming soon |
| CharXiv | 90.2% | Coming soon | Coming soon |
| MathVision w/ Python | 96.5% | Coming soon | Coming soon |
| Video-MME | 85.2% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| FrontierScience | 77% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 15.9% | Coming soon |

### Mathematics

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: 74.9 (Unranked · 2 rankable rows)

| Benchmark | LongCat-2.5 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 74.035% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 46.341% | Coming soon |

## FAQ

### Which is better overall, LongCat-2.5 or Muse Spark 1.3?

Muse Spark 1.3 is ahead overall on BenchLM right now.

### How many benchmarks does LongCat-2.5 cover on BenchLM?

LongCat-2.5 currently has 22 sourced benchmark scores on BenchLM.

### How many benchmarks does Muse Spark 1.3 cover on BenchLM?

Muse Spark 1.3 currently has 21 sourced benchmark scores on BenchLM.

## Related Comparisons

- [LongCat-2.5 vs Muse Spark 1.1](/compare/longcat-2-5-vs-muse-spark-1-1)
- [Muse Spark 1.3 vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-muse-spark-1-3)
- [LongCat-2.5 vs Muse Spark 1.2](/compare/longcat-2-5-vs-muse-spark-1-2)
- [Muse Spark 1.3 vs Muse Spark 1.2](/compare/muse-spark-1-2-vs-muse-spark-1-3)

## Explore More

- [LongCat-2.5 profile](/models/longcat-2-5)
- [Muse Spark 1.3 profile](/models/muse-spark-1-3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)