# ERNIE 5.5 Flash Preview vs LongCat-2.5

> Side-by-side benchmark comparison for ERNIE 5.5 Flash Preview and LongCat-2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/ernie-5-5-flash-preview-vs-longcat-2-5
- Last updated: November 11, 2026

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

## Quick Verdict

Treat this as a split decision: use the category and benchmark breakdown to decide which profile better matches your workload.

## Summary

- ERNIE 5.5 Flash Preview and LongCat-2.5 are tied on overall score, so the decision depends on category fit rather than the headline number.
- The biggest single benchmark swing is AutomationBench in Agentic, with scores of 61.9% and 51.8%.
- ERNIE 5.5 Flash Preview is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | ERNIE 5.5 Flash Preview | LongCat-2.5 |
|----------|----------|----------|
| Creator | Baidu | Meituan |
| Type | Pending | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 1M | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 15 | 22 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | ERNIE 5.5 Flash Preview | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 46.50% | 38.50% | ERNIE 5.5 Flash Preview |
| Terminal-Bench-Science 0.1 | 21.0% | Coming soon | Coming soon |
| AutomationBench | 61.9% | 51.8% | ERNIE 5.5 Flash Preview |
| APEX-Agents | 64.2% | Coming soon | Coming soon |
| DRACO | 84.9% | Coming soon | Coming soon |
| SpreadsheetBench 2 | 36.4% | 34.9% | ERNIE 5.5 Flash Preview |
| Agents' Last Exam (CLI) | 29.0% | Coming soon | Coming soon |
| Toolathlon-Verified | 75.0% | Coming soon | Coming soon |
| MCP Atlas | 84.6% | 83.1% | ERNIE 5.5 Flash Preview |
| BrowseComp | 87.4% | 91.9% | LongCat-2.5 |
| Terminal-Bench 2.1 | Coming soon | 88.4% | 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 |
| skillsBench | Coming soon | 63.3% | Coming soon |
| Claw-Eval | Coming soon | 78.3% | Coming soon |

### Coding

- Winner: Not comparable
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | ERNIE 5.5 Flash Preview | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 71.2% | 64.6% | ERNIE 5.5 Flash Preview |
| ProgramBench | 29.5% | 25.5% | ERNIE 5.5 Flash Preview |
| NL2Repo | 64.8% | 60.5% | ERNIE 5.5 Flash Preview |
| Terminal-Bench 2.1 | Coming soon | 88.4% | Coming soon |
| PaperBench | Coming soon | 82.1% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 58.3% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | ERNIE 5.5 Flash Preview | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro v2 | 67.9% | Coming soon | Coming soon |
| 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
- ERNIE 5.5 Flash Preview public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | ERNIE 5.5 Flash Preview | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| HLE w/o tools | 46.4% | Coming soon | Coming soon |
| FrontierScience | Coming soon | 77% | Coming soon |

## FAQ

### Which is better overall, ERNIE 5.5 Flash Preview or LongCat-2.5?

ERNIE 5.5 Flash Preview and LongCat-2.5 are tied on overall score in the current BenchLM data.

### How many benchmarks does ERNIE 5.5 Flash Preview cover on BenchLM?

ERNIE 5.5 Flash Preview currently has 15 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

- [ERNIE 5.5 Flash Preview vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-ernie-5-5-flash-preview)
- [LongCat-2.5 vs Claude Fable 5.2](/compare/claude-fable-5-2-vs-longcat-2-5)
- [ERNIE 5.5 Flash Preview vs Gemini 4 Carbon](/compare/ernie-5-5-flash-preview-vs-gemini-4-carbon)
- [LongCat-2.5 vs Gemini 4 Carbon](/compare/gemini-4-carbon-vs-longcat-2-5)

## Explore More

- [ERNIE 5.5 Flash Preview profile](/models/ernie-5-5-flash-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)