# Hy3 Preview vs Hy4 preview

> Side-by-side benchmark comparison for Hy3 Preview and Hy4 preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/hy3-preview-vs-hy4-preview
- Last updated: October 13, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Hy3 Preview and Hy4 preview share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Hy4 preview has the larger published context window at 1M.

## Model Snapshot

| Property | Hy3 Preview | Hy4 preview |
|----------|----------|----------|
| Creator | Tencent | Tencent |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 1M |
| Independent public score (not head-to-head) | 51.95 | 60.86 |
| Benchmarks Covered | 6 | 30 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Hy3 Preview public-lane score: Coming soon
- Hy4 preview public-lane score: 54.5 (Estimated · #37/123)

| Benchmark | Hy3 Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 54.4% | Coming soon | Coming soon |
| Gert Labs | 36.91% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 85.4% | Coming soon |
| CyberGym | Coming soon | 78.4% | Coming soon |
| WideResearch | Coming soon | 83.9% | Coming soon |
| 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 |
| skillsBench | Coming soon | 62.9% | Coming soon |
| JobBench | Coming soon | 61.7% | Coming soon |
| Agents' Last Exam | Coming soon | 22.8% | Coming soon |
| AutomationBench | Coming soon | 32.1% | Coming soon |
| BankerToolBench | Coming soon | 78.6% | Coming soon |
| HLE w/ tools | Coming soon | 55.4% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 55.1% | Coming soon |
| CWE-bench v1 | Coming soon | 53.0% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Hy3 Preview public-lane score: 31 (Estimated · #91/148)
- Hy4 preview public-lane score: 57.1 (Supported · #26/148)

| Benchmark | Hy3 Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 74.4% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 54.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 85.4% | Coming soon |
| SWE-bench Pro | Coming soon | 65.7% | Coming soon |
| 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 |

### Reasoning

- Winner: Insufficient shared evidence
- Hy3 Preview public-lane score: Coming soon
- Hy4 preview public-lane score: Coming soon

| Benchmark | Hy3 Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 16.9% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Hy3 Preview public-lane score: Coming soon
- Hy4 preview public-lane score: 88.3 (Unranked · 1 rankable row)

| Benchmark | Hy3 Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 66.2% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Hy3 Preview public-lane score: 46.6 (Estimated · #88/180)
- Hy4 preview public-lane score: 63.6 (Estimated · #39/180)

| Benchmark | Hy3 Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87.2% | 92.3% | Hy4 preview |
| GPQA-D | 87.2% | 92.3% | Hy4 preview |
| HLE | Coming soon | 55.4% | Coming soon |
| HLE w/o tools | Coming soon | 43.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Hy3 Preview public-lane score: 48.4 (#86/127)
- Hy4 preview public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Hy3 Preview public-lane score: Coming soon
- Hy4 preview public-lane score: Coming soon

| Benchmark | Hy3 Preview | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Apex | Coming soon | 74.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between Hy3 Preview and Hy4 preview?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Hy3 Preview vs Hy3](/compare/hy3-vs-hy3-preview)
- [Hy4 preview vs Hy3](/compare/hy3-vs-hy4-preview)
- [Hy3 Preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-hy3-preview)
- [Hy4 preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-hy4-preview)

## Explore More

- [Hy3 Preview profile](/models/hy3-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)