# GPT-6 Astra vs LongCat-2.5

> Side-by-side benchmark comparison for GPT-6 Astra and LongCat-2.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-6-astra-vs-longcat-2-5
- Last updated: November 9, 2026

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

## Quick Verdict

Pick GPT-6 Astra 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-6 Astra leads overall 85.23 to 0.
- The biggest single benchmark swing is Agents' Last Exam in Agentic, with scores of 59.3% and 38.5%.
- LongCat-2.5 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- GPT-6 Astra also has the larger context window at 1.05M.

## Model Snapshot

| Property | GPT-6 Astra | LongCat-2.5 |
|----------|----------|----------|
| Creator | OpenAI | Meituan |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Hybrid |
| Context | 1.05M | 1M |
| Overall Score | 85.23 | null |
| Benchmarks Covered | 56 | 22 |
| Pricing (input/output) | $10.00 / $50.00 | $0.30 / $1.20 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GPT-6 Astra public-lane score: 73.6 (Supported · #9/132)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.1 | 60.30% | Coming soon | Coming soon |
| LifeVal | 80.6% | Coming soon | Coming soon |
| BrowseComp | 91.5% | 91.9% | LongCat-2.5 |
| OSWorld 2.0 | 72.6% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 57.90% | 38.50% | GPT-6 Astra |
| Terminal-Bench-Science 0.1 | 64.6% | Coming soon | Coming soon |
| ExploitGym | 42.4% | Coming soon | Coming soon |
| Agents' Last Exam | 59.3% | 38.5% | GPT-6 Astra |
| AutomationBench | 41.4% | 51.8% | LongCat-2.5 |
| HLE w/ tools | 57.2% | 63.1% | LongCat-2.5 |
| Terminal-Bench 2.1 (Vals) | 87.3% | Coming soon | Coming soon |
| ApprenticeBench | 68% | Coming soon | Coming soon |
| CWE-bench v1 | 68.0% | Coming soon | Coming soon |
| Hermes Index | 56.3% | Coming soon | Coming soon |
| Hermes Bench | 73.7% | Coming soon | Coming soon |
| MazeBench | 23% | Coming soon | Coming soon |
| OSWorld 2.1 | 75.8% | Coming soon | Coming soon |
| RoboDojo Sim | 29.8% | Coming soon | Coming soon |
| Remote Labor Index | 20.8% | Coming soon | Coming soon |
| CWE-bench | 64.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.4% | Coming soon |
| MCP Atlas | Coming soon | 83.1% | Coming soon |
| JobBench | Coming soon | 65.4% | Coming soon |
| skillsBench | Coming soon | 63.3% | Coming soon |
| SpreadsheetBench 2 | Coming soon | 34.9% | Coming soon |
| Claw-Eval | Coming soon | 78.3% | Coming soon |

### Coding

- Winner: Not comparable
- GPT-6 Astra public-lane score: 74 (Supported · #6/158)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| ScarfBench | 65.4% | Coming soon | Coming soon |
| DeepSWE | 74.1% | 64.6% | GPT-6 Astra |
| FrontierCode 1.1 Main | 53.3% | Coming soon | Coming soon |
| FrontierCode 1.1 Extended | 64.5% | Coming soon | Coming soon |
| FrontierSWE v2 | 65.5% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 44.3% | Coming soon | Coming soon |
| Bug Hunt Bench | 45.0 fixes | Coming soon | Coming soon |
| FrontierCode 2.0 | 42.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.4% | Coming soon |
| ProgramBench | Coming soon | 25.5% | 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-6 Astra public-lane score: 80.7 (Supported · #2/157)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| BioBasicsBench | 67.0% | Coming soon | Coming soon |
| STEMBench | 2.81 | Coming soon | Coming soon |
| ARC-AGI-1 | 97.50% | Coming soon | Coming soon |
| ARC-AGI-2 | 95% | Coming soon | Coming soon |
| ARC-AGI-3 | 62.7% | Coming soon | Coming soon |
| GeneBench-Pro | 37.8% | Coming soon | Coming soon |
| MRCR v2 256K-512K | 100.0% | Coming soon | Coming soon |
| MRCR v2 512K-1M | 96.3% | Coming soon | Coming soon |
| GraphWalks BFS 256K–1M | 71.8% | Coming soon | Coming soon |
| ARC-AGI-3 Provider Adapter | 98.55% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GPT-6 Astra public-lane score: 79 (Supported · #4/67)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench Pro | 58% | Coming soon | Coming soon |
| ExtractBench (LlamaIndex) | 91.91% | Coming soon | Coming soon |
| ParseBench | 69.81% | Coming soon | Coming soon |
| ScreenSpot Pro | 92.7% | Coming soon | Coming soon |
| BenchCAD Vision2Code (tools) | 0.959 | Coming soon | Coming soon |
| Biomedical image analysis | 77.5% | 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
- GPT-6 Astra public-lane score: 83.8 (Supported · #5/179)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 96% | Coming soon | Coming soon |
| GPQA-D | 96.0% | Coming soon | Coming soon |
| HealthBench (raw) | 56.9% | Coming soon | Coming soon |
| HealthBench (length-adjusted) | 58.3% | Coming soon | Coming soon |
| HealthBench Professional | 64.7% | Coming soon | Coming soon |
| HealthBench Professional (raw) | 68.2% | Coming soon | Coming soon |
| HealthBench Hard | 36.6% | Coming soon | Coming soon |
| PhysicianBench | 48.0% | Coming soon | Coming soon |
| Morphology-to-molecule matching | 22.8% | Coming soon | Coming soon |
| FrontierScience | Coming soon | 77% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GPT-6 Astra public-lane score: Coming soon
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 8.5% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- GPT-6 Astra public-lane score: 93.8 (Unranked · 2 rankable rows)
- LongCat-2.5 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | LongCat-2.5 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tier 4) | 97.600% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 93.684% | Coming soon | Coming soon |

## FAQ

### Which is better overall, GPT-6 Astra or LongCat-2.5?

GPT-6 Astra is ahead overall on BenchLM right now.

### How many benchmarks does GPT-6 Astra cover on BenchLM?

GPT-6 Astra currently has 56 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-6 Astra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-astra)
- [LongCat-2.5 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-longcat-2-5)
- [GPT-6 Astra vs GPT-6.1 Terra](/compare/gpt-6-1-terra-vs-gpt-6-astra)
- [LongCat-2.5 vs GPT-6.1 Terra](/compare/gpt-6-1-terra-vs-longcat-2-5)

## Explore More

- [GPT-6 Astra profile](/models/gpt-6-astra)
- [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)