# GLM-5.3-Flash vs Hy4 preview

> Side-by-side benchmark comparison for GLM-5.3-Flash and Hy4 preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/glm-5-3-flash-vs-hy4-preview
- Last updated: October 13, 2026

- Shared sourced benchmarks: 10
- 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 56.59. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in coding, where the averages are 48.4 for GLM-5.3-Flash and 57.1 for Hy4 preview.
- The biggest single benchmark swing is AutomationBench in Agentic, with scores of 48.8% and 32.1%.

## Model Snapshot

| Property | GLM-5.3-Flash | Hy4 preview |
|----------|----------|----------|
| Creator | Z.AI | Tencent |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 56.59 | 60.86 |
| Benchmarks Covered | 23 | 30 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- GLM-5.3-Flash public-lane score: 55.3 (Supported · #34/123)
- Hy4 preview public-lane score: 54.5 (Estimated · #37/123)

| Benchmark | GLM-5.3-Flash | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 84.3% | 85.4% | Hy4 preview |
| Toolathlon-Verified | 78.4% | 74.1% | GLM-5.3-Flash |
| AutomationBench | 48.8% | 32.1% | GLM-5.3-Flash |
| Agents' Last Exam | 26.3% | 22.8% | GLM-5.3-Flash |
| HLE w/ tools | 55.3% | 55.4% | Hy4 preview |
| Terminal-Bench 2.1 (Vals) | 62.9% | 55.1% | GLM-5.3-Flash |
| 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 |
| APEX-Agents | Coming soon | 37.1% | Coming soon |
| skillsBench | Coming soon | 62.9% | Coming soon |
| JobBench | Coming soon | 61.7% | Coming soon |
| BankerToolBench | Coming soon | 78.6% | Coming soon |
| CWE-bench v1 | Coming soon | 53.0% | Coming soon |

### Coding

- Winner: Hy4 preview
- GLM-5.3-Flash public-lane score: 48.4 (Supported · #45/148)
- Hy4 preview public-lane score: 57.1 (Supported · #26/148)

| Benchmark | GLM-5.3-Flash | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 84.3% | 85.4% | Hy4 preview |
| DeepSWE | 63.4% | 64.3% | Hy4 preview |
| NL2Repo | 56.3% | 58.9% | Hy4 preview |
| LiveCodeBench (Vals) | 80.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 92.0% | Coming soon | Coming soon |
| OpenHarmony Bench | 57.3% | Coming soon | Coming soon |
| FrontierSWE v2 | 18.1% | Coming soon | Coming soon |
| Bug Hunt Bench | 17.7 fixes | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 65.7% | Coming soon |
| SWE Multilingual | Coming soon | 82.9% | 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: Not comparable
- GLM-5.3-Flash public-lane score: 80.8 (#12/29)
- Hy4 preview public-lane score: Coming soon

| Benchmark | GLM-5.3-Flash | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| CritPt | Coming soon | 16.9% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- GLM-5.3-Flash public-lane score: 84 (#14/54)
- Hy4 preview public-lane score: 88.3 (Unranked · 1 rankable row)

| Benchmark | GLM-5.3-Flash | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 62.4% | 66.2% | Hy4 preview |
| CharXiv | 89.4% | Coming soon | Coming soon |
| Chartography (tools) | 78.0% | Coming soon | Coming soon |
| BabyVision | 53.4% | Coming soon | Coming soon |
| MMVU | 80.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- GLM-5.3-Flash public-lane score: 59.2 (Supported · #49/180)
- Hy4 preview public-lane score: 63.6 (Estimated · #39/180)

| Benchmark | GLM-5.3-Flash | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 86.4% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.1% | Coming soon | Coming soon |
| 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: Not comparable
- GLM-5.3-Flash public-lane score: 60.4 (Unranked · 2 rankable rows)
- Hy4 preview public-lane score: Coming soon

| Benchmark | GLM-5.3-Flash | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 55.789% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 17.073% | Coming soon | Coming soon |
| Apex | Coming soon | 74.2% | Coming soon |

## FAQ

### Which is better overall, GLM-5.3-Flash or Hy4 preview?

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

### Where is the biggest gap between GLM-5.3-Flash and Hy4 preview?

The widest category gap is in coding, where the averages are 48.4 for GLM-5.3-Flash and 57.1 for Hy4 preview.

### How many benchmarks does GLM-5.3-Flash cover on BenchLM?

GLM-5.3-Flash currently has 23 sourced benchmark scores on BenchLM.

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

Hy4 preview currently has 30 sourced benchmark scores on BenchLM.

## Related Comparisons

- [GLM-5.3-Flash vs GLM-5.3](/compare/glm-5-3-vs-glm-5-3-flash)
- [Hy4 preview vs GLM-5.3](/compare/glm-5-3-vs-hy4-preview)
- [GLM-5.3-Flash vs GLM-5.2](/compare/glm-5-2-vs-glm-5-3-flash)
- [Hy4 preview vs GLM-5.2](/compare/glm-5-2-vs-hy4-preview)

## Explore More

- [GLM-5.3-Flash profile](/models/glm-5-3-flash)
- [Hy4 preview profile](/models/hy4-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)