# GPT-6 Astra vs Hy4

> Side-by-side benchmark comparison for GPT-6 Astra and Hy4 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-6-astra-vs-hy4
- Last updated: November 4, 2026

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

## Quick Verdict

Pick GPT-6 Astra if you want the stronger benchmark profile. Hy4 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 86.07 to 0.
- The biggest single benchmark swing is Terminal-Bench-Science 0.1 in Agentic, with scores of 64.6% and 19.8%.
- Hy4 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 | Hy4 |
|----------|----------|----------|
| Creator | OpenAI | Tencent |
| Type | Proprietary | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 1.05M | 1M |
| Overall Score | 86.07 | null |
| Benchmarks Covered | 48 | 15 |
| Pricing (input/output) | $10.00 / $50.00 | $0.834 / $2.501 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- GPT-6 Astra public-lane score: 76 (Supported · #7/135)
- Hy4 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| LifeVal | 80.6% | Coming soon | Coming soon |
| BrowseComp | 91.5% | Coming soon | Coming soon |
| OSWorld 2.0 | 72.6% | Coming soon | Coming soon |
| Terminal-Bench 4.0 | 57.90% | 44.40% | GPT-6 Astra |
| Terminal-Bench-Science 0.1 | 64.6% | 19.8% | GPT-6 Astra |
| ExploitGym | 42.4% | Coming soon | Coming soon |
| Agents' Last Exam | 59.3% | 41.0% | GPT-6 Astra |
| AutomationBench | 41.4% | 56.2% | Hy4 |
| HLE w/ tools | 57.2% | 59.1% | Hy4 |
| 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% | 78.9% | Hy4 |
| APEX-Agents | Coming soon | 75.2% | Coming soon |

### Coding

- Winner: Not comparable
- GPT-6 Astra public-lane score: 74.7 (Supported · #5/156)
- Hy4 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| ScarfBench | 65.4% | Coming soon | Coming soon |
| DeepSWE | 74.1% | 74.9% | Hy4 |
| 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% | 31.0% | GPT-6 Astra |
| sweMarathon | Coming soon | 43.8% | Coming soon |
| ProgramBench | Coming soon | 30.0% | Coming soon |
| PostTrainBench v1.2 | Coming soon | 35.2% | Coming soon |

### Reasoning

- Winner: Not comparable
- GPT-6 Astra public-lane score: 93.3 (#1/26)
- Hy4 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| 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: 88.2 (Unranked · 3 rankable rows)
- Hy4 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench Pro | 58% | Coming soon | Coming soon |
| ExtractBench (LlamaIndex) | 91.91% | Coming soon | Coming soon |
| ParseBench | 69.88% | Coming soon | Coming soon |
| ScreenSpot Pro | 92.7% | Coming soon | Coming soon |
| BenchCAD Vision2Code (tools) | 0.959 | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 78.6% | Coming soon |
| ZeroBench w/ Python | Coming soon | 55.4% | Coming soon |

### Knowledge

- Winner: Not comparable
- GPT-6 Astra public-lane score: 85.8 (Supported · #5/179)
- Hy4 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | Hy4 | 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 |
| HLE | Coming soon | 59.1% | Coming soon |

### Instruction Following

- Winner: Not comparable
- GPT-6 Astra public-lane score: Coming soon
- Hy4 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | Hy4 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 8.5% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- GPT-6 Astra public-lane score: 97.3 (Unranked · 2 rankable rows)
- Hy4 public-lane score: Coming soon

| Benchmark | GPT-6 Astra | Hy4 | 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 Hy4?

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 48 sourced benchmark scores on BenchLM.

### How many benchmarks does Hy4 cover on BenchLM?

Hy4 currently has 15 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GPT-6 Astra vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-gpt-6-astra)
- [Hy4 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-hy4)
- [GPT-6 Astra vs GPT-6.1 Terra](/compare/gpt-6-1-terra-vs-gpt-6-astra)
- [Hy4 vs GPT-6.1 Terra](/compare/gpt-6-1-terra-vs-hy4)

## Explore More

- [GPT-6 Astra profile](/models/gpt-6-astra)
- [Hy4 profile](/models/hy4)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)