# Atria Dawn Preview vs Hy4 preview

> Side-by-side benchmark comparison for Atria Dawn Preview and Hy4 preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/atria-dawn-preview-vs-hy4-preview
- Last updated: September 14, 2026

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

## Quick Verdict

Pick Atria Dawn Preview if you want the stronger benchmark profile. Hy4 preview only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Atria Dawn Preview leads overall 63 to 61.16.
- The clearest category separation is in coding, where the averages are 51.6 for Atria Dawn Preview and 59.3 for Hy4 preview.
- The biggest single benchmark swing is AutomationBench in Agentic, with scores of 53.8% and 32.1%.
- Hy4 preview also has the larger context window at 1M.

## Model Snapshot

| Property | Atria Dawn Preview | Hy4 preview |
|----------|----------|----------|
| Creator | Shanghai Artificial Intelligence Laboratory | Tencent |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Overall Score | null | 61.16 |
| Benchmarks Covered | 13 | 28 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Atria Dawn Preview public-lane score: 57.9 (Estimated · #31/153)
- Hy4 preview public-lane score: 58.3 (Estimated · #30/153)

| Benchmark | Atria Dawn Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| AutomationBench | 53.8% | 32.1% | Atria Dawn Preview |
| BFCL v4 | 77.0% | Coming soon | Coming soon |
| CyberGym | 86.5% | 78.4% | Atria Dawn Preview |
| DeepSearchQA | 96.0% | Coming soon | Coming soon |
| BrowseComp | 92.5% | Coming soon | Coming soon |
| skillsBench | 66.4% | 62.9% | Atria Dawn Preview |
| MLE-Bench Lite | 86.2% | Coming soon | Coming soon |
| WideResearch | 81.9% | 83.9% | Hy4 preview |
| τ³-bench results | 41.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 78.3% | 85.4% | Hy4 preview |
| JobBench | 50.3% | 61.7% | Hy4 preview |
| DRACO | Coming soon | 77.2% | Coming soon |
| MCP Atlas | Coming soon | 83.7% | Coming soon |
| Toolathlon-Verified | Coming soon | 74.1% | Coming soon |
| APEX-Agents | Coming soon | 37.1% | Coming soon |
| Agents' Last Exam | Coming soon | 22.8% | Coming soon |
| BankerToolBench | Coming soon | 78.6% | Coming soon |
| HLE w/ tools | Coming soon | 55.4% | Coming soon |

### Coding

- Winner: Coming soon
- Atria Dawn Preview public-lane score: 51.6 (Estimated · #51/152)
- Hy4 preview public-lane score: 59.3 (Estimated · #24/152)

| Benchmark | Atria Dawn Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 78.3% | 85.4% | Hy4 preview |
| SWE-bench Pro | 59.6% | 65.7% | Hy4 preview |
| SWE Multilingual | Coming soon | 82.9% | Coming soon |
| DeepSWE | Coming soon | 64.3% | Coming soon |
| NL2Repo | Coming soon | 58.9% | Coming soon |
| ProgramBench | Coming soon | 17.5% | Coming soon |
| PostTrain Bench | Coming soon | 35.6% | Coming soon |
| sweMarathon | Coming soon | 31.9% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Hy4 preview public-lane score: 84.8 (Unranked · 1 rankable row)

| Benchmark | Atria Dawn Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 66.2% | Coming soon |

### Reasoning

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Hy4 preview public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 16.9% | Coming soon |

### Knowledge

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Hy4 preview public-lane score: 56.5 (Estimated · #46/183)

| Benchmark | Atria Dawn Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 92.3% | Coming soon |
| GPQA-D | Coming soon | 92.3% | Coming soon |
| HLE | Coming soon | 55.4% | Coming soon |
| HLE w/o tools | Coming soon | 43.4% | Coming soon |

### Mathematics

- Winner: Coming soon
- Atria Dawn Preview public-lane score: Coming soon
- Hy4 preview public-lane score: Coming soon

| Benchmark | Atria Dawn Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Apex | Coming soon | 74.2% | Coming soon |

## FAQ

### Which is better overall, Atria Dawn Preview or Hy4 preview?

Atria Dawn Preview is ahead overall on BenchLM right now.

### Where is the biggest gap between Atria Dawn Preview and Hy4 preview?

The widest category gap is in coding, where the averages are 51.6 for Atria Dawn Preview and 59.3 for Hy4 preview.

### How many benchmarks does Atria Dawn Preview cover on BenchLM?

Atria Dawn Preview currently has 13 sourced benchmark scores on BenchLM.

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

Hy4 preview currently has 28 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Atria Dawn Preview vs Claude Fable 5.1](/compare/atria-dawn-preview-vs-claude-fable-5-1)
- [Hy4 preview vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-hy4-preview)
- [Atria Dawn Preview vs GPT-6 Astra](/compare/atria-dawn-preview-vs-gpt-6-astra)
- [Hy4 preview vs GPT-6 Astra](/compare/gpt-6-astra-vs-hy4-preview)

## Explore More

- [Atria Dawn Preview profile](/models/atria-dawn-preview)
- [Hy4 preview profile](/models/hy4-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)