# GPT-5.4 vs LongCat-2.5

> Side-by-side benchmark comparison for GPT-5.4 and LongCat-2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-5-4-vs-longcat-2-5
- Last updated: November 9, 2026

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

## Quick Verdict

Pick GPT-5.4 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

- GPT-5.4 leads overall 66.07 to 0.
- The biggest single benchmark swing is JobBench in Agentic, with scores of 38.9% and 65.4%.
- LongCat-2.5 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-5.4 also has the larger context window at 1.05M.

## Model Snapshot

| Property | GPT-5.4 | LongCat-2.5 |
|----------|----------|----------|
| Creator | OpenAI | Meituan |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 1.05M | 1M |
| Overall Score | 66.07 | null |
| Benchmarks Covered | 45 | 22 |
| Pricing (input/output) | $2.50 / $15.00 | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GPT-5.4 public-lane score: 53.2 (Supported · #48/132)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-5.4 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| LifeVal | 73.0% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 75.1% | Coming soon | Coming soon |
| CyberGym | 79.0% | Coming soon | Coming soon |
| BrowseComp | 82.7% | 91.9% | LongCat-2.5 |
| OSWorld-Verified | 75% | Coming soon | Coming soon |
| MCP Atlas | 70.6% | 83.1% | LongCat-2.5 |
| Toolathlon | 54.6% | Coming soon | Coming soon |
| τ²-bench results | 98.9% | Coming soon | Coming soon |
| Claw-Eval | 60.3% | 78.3% | LongCat-2.5 |
| DeepSearchQA | 73.6% | Coming soon | Coming soon |
| Gert Labs | 64.89% | Coming soon | Coming soon |
| ResearchClawBench | 15.3% | Coming soon | Coming soon |
| JobBench | 38.9% | 65.4% | LongCat-2.5 |
| ExploitGym | 6.0% | Coming soon | Coming soon |
| ApprenticeBench | 11% | Coming soon | Coming soon |
| MazeBench | 0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.4% | Coming soon |
| Terminal-Bench 4.0 | Coming soon | 38.50% | Coming soon |
| AutomationBench | Coming soon | 51.8% | Coming soon |
| HLE w/ tools | Coming soon | 63.1% | Coming soon |
| Agents' Last Exam | Coming soon | 38.5% | Coming soon |
| skillsBench | Coming soon | 63.3% | Coming soon |
| SpreadsheetBench 2 | Coming soon | 34.9% | Coming soon |

### Coding

- Winner: Not comparable
- GPT-5.4 public-lane score: 48 (Supported · #53/158)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-5.4 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 87.5% | Coming soon | Coming soon |
| SWE-bench Pro | 57.7% | Coming soon | Coming soon |
| React Native Evals | 85.3% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 75.1% | Coming soon | Coming soon |
| Vibe Code Bench | 67.42% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 19.0% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.4% | 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 |

### Reasoning

- Winner: Not comparable
- GPT-5.4 public-lane score: 62.6 (Supported · #25/157)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-5.4 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| BioBasicsBench | 33.2% | Coming soon | Coming soon |
| ARC-AGI-2 | 74.0% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.2% | Coming soon | Coming soon |
| ARC-AGI-1 | 93.67% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-5.4 public-lane score: 65 (Estimated · #25/67)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-5.4 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| ParseBench | 61.72% | Coming soon | Coming soon |
| MMMU-Pro | 81.2% | Coming soon | Coming soon |
| OfficeQA Pro | 53.2% | Coming soon | Coming soon |
| MMMU-Pro w/ Python | 82.1% | Coming soon | Coming soon |
| CharXiv | 82.8% | 90.2% | LongCat-2.5 |
| ERQA | 65.4% | Coming soon | Coming soon |
| SimpleVQA | 61.1% | Coming soon | Coming soon |
| ScreenSpot Pro | 85.4% | Coming soon | Coming soon |
| ZeroBench | 41.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 77.1% | Coming soon | Coming soon |
| Vision2Web | Coming soon | 78.6% | Coming soon |
| MathVision w/ Python | Coming soon | 96.5% | Coming soon |
| Video-MME | Coming soon | 85.2% | Coming soon |

### Knowledge

- Winner: Not comparable
- GPT-5.4 public-lane score: 67.1 (Supported · #22/179)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-5.4 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.8% | Coming soon | Coming soon |
| HLE | 52.1% | Coming soon | Coming soon |
| HLE w/o tools | 39.8% | Coming soon | Coming soon |
| GPQA-D | 92.8% | Coming soon | Coming soon |
| HealthBench Hard | 40.1% | Coming soon | Coming soon |
| MedXpertQA (Text) | 59.6% | Coming soon | Coming soon |
| HealthBench Professional | 48.1% | Coming soon | Coming soon |
| FrontierScience | Coming soon | 77% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GPT-5.4 public-lane score: 90.7 (#25/157)
- LongCat-2.5 public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- GPT-5.4 public-lane score: 78.5 (Unranked · 2 rankable rows)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-5.4 | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 78.596% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 49.000% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GPT-5.4 or LongCat-2.5?

GPT-5.4 is ahead overall on BenchLM right now.

### How many benchmarks does GPT-5.4 cover on BenchLM?

GPT-5.4 currently has 45 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

- [GPT-5.4 vs GPT-5.4 Pro](/compare/gpt-5-4-vs-gpt-5-4-pro)
- [LongCat-2.5 vs GPT-5.4 Pro](/compare/gpt-5-4-pro-vs-longcat-2-5)
- [GPT-5.4 vs GPT-5.4 mini](/compare/gpt-5-4-vs-gpt-5-4-mini)
- [LongCat-2.5 vs GPT-5.4 mini](/compare/gpt-5-4-mini-vs-longcat-2-5)

## Explore More

- [GPT-5.4 profile](/models/gpt-5-4)
- [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)