# Atria Dawn Preview vs LongCat-2.5

> Side-by-side benchmark comparison for Atria Dawn Preview and LongCat-2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/atria-dawn-preview-vs-longcat-2-5
- Last updated: November 9, 2026

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

## Quick Verdict

Pick Atria Dawn Preview 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

- Atria Dawn Preview leads overall 66 to 0.
- The biggest single benchmark swing is JobBench in Agentic, with scores of 50.3% and 65.4%.
- Atria Dawn Preview 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 | Atria Dawn Preview | LongCat-2.5 |
|----------|----------|----------|
| Creator | Shanghai Artificial Intelligence Laboratory | Meituan |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 256K | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 13 | 22 |
| Pricing (input/output) | $0.00 / $0.00 | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Atria Dawn Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.8% | 51.8% | Atria Dawn Preview |
| BFCL v4 | 77.0% | Coming soon | Coming soon |
| CyberGym | 86.5% | Coming soon | Coming soon |
| DeepSearchQA | 96.0% | Coming soon | Coming soon |
| BrowseComp | 92.5% | 91.9% | Atria Dawn Preview |
| skillsBench | 66.4% | 63.3% | Atria Dawn Preview |
| MLE-Bench Lite | 86.2% | Coming soon | Coming soon |
| WideResearch | 81.9% | Coming soon | Coming soon |
| τ³-bench results | 41.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 78.3% | 88.4% | LongCat-2.5 |
| JobBench | 50.3% | 65.4% | LongCat-2.5 |
| 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 |
| MCP Atlas | Coming soon | 83.1% | Coming soon |
| SpreadsheetBench 2 | Coming soon | 34.9% | Coming soon |
| Claw-Eval | Coming soon | 78.3% | Coming soon |

### Coding

- Winner: Not comparable
- Atria Dawn Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 78.3% | 88.4% | LongCat-2.5 |
| SWE-bench Pro | 59.6% | Coming soon | Coming soon |
| ProgramBench | Coming soon | 25.5% | Coming soon |
| DeepSWE | Coming soon | 64.6% | Coming soon |
| PaperBench | Coming soon | 82.1% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 58.3% | Coming soon |
| NL2Repo | Coming soon | 60.5% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Atria Dawn Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | 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
- Atria Dawn Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| FrontierScience | Coming soon | 77% | Coming soon |

## FAQ

### Which is better overall, Atria Dawn Preview or LongCat-2.5?

Atria Dawn Preview is ahead overall on BenchLM right now.

### How many benchmarks does Atria Dawn Preview cover on BenchLM?

Atria Dawn Preview currently has 13 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

- [Atria Dawn Preview vs Claude Fable 5.2](/compare/atria-dawn-preview-vs-claude-fable-5-2)
- [LongCat-2.5 vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-longcat-2-5)
- [Atria Dawn Preview vs Gemini 4 Carbon](/compare/atria-dawn-preview-vs-gemini-4-carbon)
- [LongCat-2.5 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-longcat-2-5)

## Explore More

- [Atria Dawn Preview profile](/models/atria-dawn-preview)
- [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)