# LongCat-2.5 vs Qwen3.8-Omni-Flash

> Side-by-side benchmark comparison for LongCat-2.5 and Qwen3.8-Omni-Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/longcat-2-5-vs-qwen3-8-omni-flash
- Last updated: November 9, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Qwen3.8-Omni-Flash 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

- Qwen3.8-Omni-Flash leads overall 67 to 0.
- The biggest single benchmark swing is Vision2Web in Multimodal & Grounded, with scores of 78.6% and 62.9%.
- Qwen3.8-Omni-Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | LongCat-2.5 | Qwen3.8-Omni-Flash |
|----------|----------|----------|
| Creator | Meituan | Alibaba |
| Type | Open Weight | Proprietary |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 22 | 19 |
| Pricing (input/output) | $0.30 / $1.20 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.4% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 38.50% | Coming soon | Coming soon |
| BrowseComp | 91.9% | Coming soon | Coming soon |
| AutomationBench | 51.8% | Coming soon | Coming soon |
| 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% | Coming soon | Coming soon |
| skillsBench | 63.3% | Coming soon | Coming soon |
| SpreadsheetBench 2 | 34.9% | Coming soon | Coming soon |
| Claw-Eval | 78.3% | Coming soon | Coming soon |
| CoWorkBench | Coming soon | 75.3% | Coming soon |
| AndroidWorld | Coming soon | 87.1% | Coming soon |

### Coding

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.4% | Coming soon | Coming soon |
| ProgramBench | 25.5% | Coming soon | Coming soon |
| DeepSWE | 64.6% | 57.8% | LongCat-2.5 |
| PaperBench | 82.1% | Coming soon | Coming soon |
| SWE-Atlas Codebase QnA | 58.3% | Coming soon | Coming soon |
| NL2Repo | 60.5% | 48.9% | LongCat-2.5 |
| SWE-bench Pro | Coming soon | 63.3% | Coming soon |
| SWE Multilingual | Coming soon | 80.5% | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| Vision2Web | 78.6% | 62.9% | LongCat-2.5 |
| CharXiv | 90.2% | 91.4% | Qwen3.8-Omni-Flash |
| MathVision w/ Python | 96.5% | 96.2% | LongCat-2.5 |
| Video-MME | 85.2% | Coming soon | Coming soon |
| ERQA | Coming soon | 71.0% | Coming soon |
| LVBench | Coming soon | 76.9% | Coming soon |
| RealWorldQA | Coming soon | 87.7% | Coming soon |
| MathVision | Coming soon | 91.8% | Coming soon |
| CharXiv w/o tools | Coming soon | 83.5% | Coming soon |

### Knowledge

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | LongCat-2.5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| FrontierScience | 77% | Coming soon | Coming soon |
| GPQA | Coming soon | 91% | Coming soon |
| GPQA-D | Coming soon | 91.0% | Coming soon |
| HLE | Coming soon | 36.5% | Coming soon |

### Instruction Following

- Winner: Not comparable
- LongCat-2.5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: 91.6 (#23/157)

| Benchmark | LongCat-2.5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 81.5% | Coming soon |

## FAQ

### Which is better overall, LongCat-2.5 or Qwen3.8-Omni-Flash?

Qwen3.8-Omni-Flash 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 Qwen3.8-Omni-Flash cover on BenchLM?

Qwen3.8-Omni-Flash currently has 19 sourced benchmark scores on BenchLM.

## Related Comparisons

- [LongCat-2.5 vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-longcat-2-5)
- [Qwen3.8-Omni-Flash vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-qwen3-8-omni-flash)
- [LongCat-2.5 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-longcat-2-5)
- [Qwen3.8-Omni-Flash vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-qwen3-8-omni-flash)

## Explore More

- [LongCat-2.5 profile](/models/longcat-2-5)
- [Qwen3.8-Omni-Flash profile](/models/qwen3-8-omni-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)