# Gemini 3.8 Flash Cyber vs Hy4 preview

> Side-by-side benchmark comparison for Gemini 3.8 Flash Cyber and Hy4 preview across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-8-flash-cyber-vs-hy4-preview
- Last updated: October 17, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Gemini 3.8 Flash Cyber and Hy4 preview share only 1 sourced benchmark row.

## Summary

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

## Model Snapshot

| Property | Gemini 3.8 Flash Cyber | Hy4 preview |
|----------|----------|----------|
| Creator | Google | Tencent |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | null | 1M |
| Independent public score (not head-to-head) | null | 61.27 |
| Benchmarks Covered | 3 | 33 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash Cyber public-lane score: Coming soon
- Hy4 preview public-lane score: 55.8 (Estimated · #40/128)

| Benchmark | Gemini 3.8 Flash Cyber | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| CyberGym | 86.2% | 78.4% | Gemini 3.8 Flash Cyber |
| CWE-Bench | 47.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 85.4% | 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 |
| Hermes Index | Coming soon | 26.1% | Coming soon |
| Hermes Bench | Coming soon | 58.6% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash Cyber public-lane score: Coming soon
- Hy4 preview public-lane score: 56.7 (Supported · #27/150)

| Benchmark | Gemini 3.8 Flash Cyber | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| 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
- Gemini 3.8 Flash Cyber public-lane score: Coming soon
- Hy4 preview public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash Cyber | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| STEMBench | Coming soon | 2.59 | Coming soon |
| CritPt | Coming soon | 16.9% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash Cyber public-lane score: Coming soon
- Hy4 preview public-lane score: 88.3 (Unranked · 1 rankable row)

| Benchmark | Gemini 3.8 Flash Cyber | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 66.2% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash Cyber public-lane score: Coming soon
- Hy4 preview public-lane score: 64.1 (Estimated · #40/184)

| Benchmark | Gemini 3.8 Flash Cyber | 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 |

### Instruction Following

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash Cyber public-lane score: Coming soon
- Hy4 preview public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash Cyber | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 6.0% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Gemini 3.8 Flash Cyber public-lane score: Coming soon
- Hy4 preview public-lane score: Coming soon

| Benchmark | Gemini 3.8 Flash Cyber | Hy4 preview | Winner |
|-----------|-----------|-----------|--------|
| Apex | Coming soon | 74.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between Gemini 3.8 Flash Cyber and Hy4 preview?

Not yet. The models share only 1 sourced benchmark row, 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

- [Gemini 3.8 Flash Cyber vs Gemini 3.8 Flash](/compare/gemini-3-8-flash-vs-gemini-3-8-flash-cyber)
- [Hy4 preview vs Gemini 3.8 Flash](/compare/gemini-3-8-flash-vs-hy4-preview)
- [Gemini 3.8 Flash Cyber vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-8-flash-cyber)
- [Hy4 preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-hy4-preview)

## Explore More

- [Gemini 3.8 Flash Cyber profile](/models/gemini-3-8-flash-cyber)
- [Hy4 preview profile](/models/hy4-preview)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)