# Hy4 preview vs Qwen3.8-27B

> Side-by-side benchmark comparison for Hy4 preview and Qwen3.8-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/hy4-preview-vs-qwen3-8-27b
- Last updated: October 13, 2026

- Shared sourced benchmarks: 12
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Hy4 preview leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Hy4 preview has the higher overall point estimate 60.86 to 57.41. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in knowledge, where the averages are 63.6 for Hy4 preview and 50.5 for Qwen3.8-27B.
- The biggest single benchmark swing is JobBench in Agentic, with scores of 61.7% and 33.4%.
- Hy4 preview also has the larger context window at 1M.

## Model Snapshot

| Property | Hy4 preview | Qwen3.8-27B |
|----------|----------|----------|
| Creator | Tencent | Alibaba |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | 60.86 | 57.41 |
| Benchmarks Covered | 30 | 34 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Hy4 preview public-lane score: 54.5 (Estimated · #37/123)
- Qwen3.8-27B public-lane score: 61.7 (Supported · #19/123)

| Benchmark | Hy4 preview | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | 73.0% | Hy4 preview |
| CyberGym | 78.4% | Coming soon | Coming soon |
| WideResearch | 83.9% | Coming soon | Coming soon |
| DRACO | 77.2% | Coming soon | Coming soon |
| MCP Atlas | 83.7% | Coming soon | Coming soon |
| Toolathlon-Verified | 74.1% | Coming soon | Coming soon |
| APEX-Agents | 37.1% | Coming soon | Coming soon |
| skillsBench | 62.9% | Coming soon | Coming soon |
| JobBench | 61.7% | 33.4% | Hy4 preview |
| Agents' Last Exam | 22.8% | 42.9% | Qwen3.8-27B |
| AutomationBench | 32.1% | Coming soon | Coming soon |
| BankerToolBench | 78.6% | Coming soon | Coming soon |
| HLE w/ tools | 55.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 55.1% | 58.4% | Qwen3.8-27B |
| CWE-bench v1 | 53.0% | Coming soon | Coming soon |
| CoWorkBench | Coming soon | 70.7% | Coming soon |
| OSWorld-Verified | Coming soon | 84.3% | Coming soon |
| WebArena-Verified | Coming soon | 64.8% | Coming soon |
| AndroidWorld | Coming soon | 81.9% | Coming soon |

### Coding

- Winner: Hy4 preview
- Hy4 preview public-lane score: 57.1 (Supported · #26/148)
- Qwen3.8-27B public-lane score: 46.8 (Supported · #50/148)

| Benchmark | Hy4 preview | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | 73.0% | Hy4 preview |
| SWE-bench Pro | 65.7% | 61.7% | Hy4 preview |
| SWE Multilingual | 82.9% | Coming soon | Coming soon |
| DeepSWE | 64.3% | 42.2% | Hy4 preview |
| NL2Repo | 58.9% | 42.3% | Hy4 preview |
| ProgramBench | 17.5% | Coming soon | Coming soon |
| PostTrain Bench | 35.6% | Coming soon | Coming soon |
| sweMarathon | 31.9% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 90.3% | Coming soon |
| VulcanBench v3 | Coming soon | 82.6% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 84.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 86.0% | Coming soon |
| Bug Hunt Bench | Coming soon | 15.0 fixes | Coming soon |

### Reasoning

- Winner: Not comparable
- Hy4 preview public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 82.2 (#9/29)

| Benchmark | Hy4 preview | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 16.9% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Hy4 preview public-lane score: 88.3 (Unranked · 1 rankable row)
- Qwen3.8-27B public-lane score: 84.4 (#13/54)

| Benchmark | Hy4 preview | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | Coming soon | Coming soon |
| MathVision | Coming soon | 90.0% | Coming soon |
| MathVision w/ Python | Coming soon | 94.6% | Coming soon |
| BabyVision | Coming soon | 65.7% | Coming soon |
| BabyVision w/ Python | Coming soon | 85.6% | Coming soon |
| Vision2Web | Coming soon | 62.9% | Coming soon |
| CharXiv w/o tools | Coming soon | 83.7% | Coming soon |
| CharXiv | Coming soon | 90.2% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 91.1% | Coming soon |
| RealWorldQA | Coming soon | 85.9% | Coming soon |
| ERQA | Coming soon | 65.5% | Coming soon |

### Knowledge

- Winner: Directional only
- Hy4 preview public-lane score: 63.6 (Estimated · #39/180)
- Qwen3.8-27B public-lane score: 50.5 (Supported · #76/180)

| Benchmark | Hy4 preview | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.3% | 89.2% | Hy4 preview |
| GPQA-D | 92.3% | 89.2% | Hy4 preview |
| HLE | 55.4% | 30.8% | Hy4 preview |
| HLE w/o tools | 43.4% | 30.8% | Hy4 preview |
| GPQA Diamond (Vals) | Coming soon | 88.9% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 84.3% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Hy4 preview public-lane score: Coming soon
- Qwen3.8-27B public-lane score: 86.9 (#40/127)

| Benchmark | Hy4 preview | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 79.5% | Coming soon |

### Mathematics

- Winner: Not comparable
- Hy4 preview public-lane score: Coming soon
- Qwen3.8-27B public-lane score: Coming soon

| Benchmark | Hy4 preview | Qwen3.8-27B | Winner |
|-----------|-----------|-----------|--------|
| Apex | 74.2% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Hy4 preview or Qwen3.8-27B?

Hy4 preview has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Hy4 preview and Qwen3.8-27B?

The widest category gap is in knowledge, where the averages are 63.6 for Hy4 preview and 50.5 for Qwen3.8-27B.

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

Hy4 preview currently has 30 sourced benchmark scores on BenchLM.

### How many benchmarks does Qwen3.8-27B cover on BenchLM?

Qwen3.8-27B currently has 34 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Hy4 preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-hy4-preview)
- [Qwen3.8-27B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-8-27b)
- [Hy4 preview vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-hy4-preview)
- [Qwen3.8-27B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-qwen3-8-27b)

## Explore More

- [Hy4 preview profile](/models/hy4-preview)
- [Qwen3.8-27B profile](/models/qwen3-8-27b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)