# Ling 3.1 Flash vs LongCat-2.5

> Side-by-side benchmark comparison for Ling 3.1 Flash and LongCat-2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

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

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

## Quick Verdict

Ling 3.1 Flash leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Ling 3.1 Flash has the higher overall point estimate 65.26 to 0. Conditional score ranges do not establish rank confidence.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 81.2% and 88.4%.
- Ling 3.1 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- LongCat-2.5 also has the larger context window at 1M.

## Model Snapshot

| Property | Ling 3.1 Flash | LongCat-2.5 |
|----------|----------|----------|
| Creator | InclusionAI | Meituan |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 262K | 1M |
| Overall Score | 65.26 | null |
| Benchmarks Covered | 17 | 22 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Ling 3.1 Flash public-lane score: 63 (Estimated · #21/132)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Ling 3.1 Flash | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| skillsBench | 68.7% | 63.3% | Ling 3.1 Flash |
| AutomationBench | 52.5% | 51.8% | Ling 3.1 Flash |
| CyberGym | 87.9% | Coming soon | Coming soon |
| Finance Agent v2 | 57.9% | Coming soon | Coming soon |
| DRACO | 85.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 81.2% | 88.4% | LongCat-2.5 |
| τ³-bench results | 47.8% | Coming soon | Coming soon |
| MCP Atlas | 83% | 83.1% | LongCat-2.5 |
| BrowseComp | 91.7% | 91.9% | LongCat-2.5 |
| WideResearch | 83.3% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 38.50% | Coming soon |
| HLE w/ tools | Coming soon | 63.1% | Coming soon |
| Agents' Last Exam | Coming soon | 38.5% | Coming soon |
| JobBench | Coming soon | 65.4% | Coming soon |
| SpreadsheetBench 2 | Coming soon | 34.9% | Coming soon |
| Claw-Eval | Coming soon | 78.3% | Coming soon |

### Coding

- Winner: Not comparable
- Ling 3.1 Flash public-lane score: 58.1 (Estimated · #24/158)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Ling 3.1 Flash | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| terminalBench4 | 46.0% | Coming soon | Coming soon |
| SWE-Atlas Codebase QnA | 64.5% | 58.3% | Ling 3.1 Flash |
| SWE Multilingual | 88.5% | Coming soon | Coming soon |
| SWE-bench Pro | 68.7% | Coming soon | Coming soon |
| DeepSWE | 59.7% | 64.6% | LongCat-2.5 |
| Terminal-Bench 2.1 | Coming soon | 88.4% | Coming soon |
| ProgramBench | Coming soon | 25.5% | Coming soon |
| PaperBench | Coming soon | 82.1% | Coming soon |
| NL2Repo | Coming soon | 60.5% | Coming soon |

### Reasoning

- Winner: Not comparable
- Ling 3.1 Flash public-lane score: 61.7 (Estimated · #27/157)
- LongCat-2.5 public-lane score: Coming soon

### Multimodal & Grounded

- Winner: Not comparable
- Ling 3.1 Flash public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Ling 3.1 Flash | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| Vision2Web | Coming soon | 78.6% | Coming soon |
| CharXiv | Coming soon | 90.2% | Coming soon |
| MathVision w/ Python | Coming soon | 96.5% | Coming soon |
| Video-MME | Coming soon | 85.2% | Coming soon |

### Knowledge

- Winner: Not comparable
- Ling 3.1 Flash public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Ling 3.1 Flash | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| HealthBench Professional | 65.3% | Coming soon | Coming soon |
| HLE | 37.4% | Coming soon | Coming soon |
| FrontierScience | Coming soon | 77% | Coming soon |

## FAQ

### Which is better overall, Ling 3.1 Flash or LongCat-2.5?

Ling 3.1 Flash has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### How many benchmarks does Ling 3.1 Flash cover on BenchLM?

Ling 3.1 Flash currently has 17 sourced benchmark scores on BenchLM.

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

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

## Related Comparisons

- [Ling 3.1 Flash vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-ling-3-1-flash)
- [LongCat-2.5 vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-longcat-2-5)
- [Ling 3.1 Flash vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-ling-3-1-flash)
- [LongCat-2.5 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-longcat-2-5)

## Explore More

- [Ling 3.1 Flash profile](/models/ling-3-1-flash)
- [LongCat-2.5 profile](/models/longcat-2-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)