# Hy4 preview vs MiMo-V2-Flash

> Side-by-side benchmark comparison for Hy4 preview and MiMo-V2-Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/hy4-preview-vs-mimo-v2-flash
- 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: Hy4 preview and MiMo-V2-Flash 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 | Hy4 preview | MiMo-V2-Flash |
|----------|----------|----------|
| Creator | Tencent | Xiaomi |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Independent public score (not head-to-head) | 60.86 | 40.86 |
| Benchmarks Covered | 30 | 8 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Hy4 preview public-lane score: 54.5 (Estimated · #37/123)
- MiMo-V2-Flash public-lane score: Coming soon

| Benchmark | Hy4 preview | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | Coming soon | Coming soon |
| 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% | Coming soon | Coming soon |
| Agents' Last Exam | 22.8% | Coming soon | Coming soon |
| 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% | Coming soon | Coming soon |
| CWE-bench v1 | 53.0% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Hy4 preview public-lane score: 57.1 (Supported · #26/148)
- MiMo-V2-Flash public-lane score: 29 (Estimated · #97/148)

| Benchmark | Hy4 preview | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 85.4% | Coming soon | Coming soon |
| SWE-bench Pro | 65.7% | Coming soon | Coming soon |
| SWE Multilingual | 82.9% | 71.7% | Hy4 preview |
| DeepSWE | 64.3% | Coming soon | Coming soon |
| NL2Repo | 58.9% | Coming soon | Coming soon |
| ProgramBench | 17.5% | Coming soon | Coming soon |
| PostTrain Bench | 35.6% | Coming soon | Coming soon |
| sweMarathon | 31.9% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 73.4% | Coming soon |
| LiveCodeBench v6 | Coming soon | 80.6% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Hy4 preview public-lane score: Coming soon
- MiMo-V2-Flash public-lane score: 58.1 (Unranked · 3 rankable rows)

| Benchmark | Hy4 preview | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| CritPt | 16.9% | Coming soon | Coming soon |
| LongBench v2 | Coming soon | 60.6% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Hy4 preview public-lane score: 88.3 (Unranked · 1 rankable row)
- MiMo-V2-Flash public-lane score: Coming soon

| Benchmark | Hy4 preview | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Hy4 preview public-lane score: 63.6 (Estimated · #39/180)
- MiMo-V2-Flash public-lane score: 34.7 (Supported · #131/180)

| Benchmark | Hy4 preview | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.3% | 83.7% | Hy4 preview |
| GPQA-D | 92.3% | Coming soon | Coming soon |
| HLE | 55.4% | Coming soon | Coming soon |
| HLE w/o tools | 43.4% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 84.9% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 59.3% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Hy4 preview public-lane score: Coming soon
- MiMo-V2-Flash public-lane score: 46.3 (#90/127)

### Mathematics

- Winner: Insufficient shared evidence
- Hy4 preview public-lane score: Coming soon
- MiMo-V2-Flash public-lane score: Coming soon

| Benchmark | Hy4 preview | MiMo-V2-Flash | Winner |
|-----------|-----------|-----------|--------|
| Apex | 74.2% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 94.1% | Coming soon |

## FAQ

### Is there enough evidence to pick between Hy4 preview and MiMo-V2-Flash?

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

- [Hy4 preview vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-hy4-preview)
- [MiMo-V2-Flash vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mimo-v2-flash)
- [Hy4 preview vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-hy4-preview)
- [MiMo-V2-Flash vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-mimo-v2-flash)

## Explore More

- [Hy4 preview profile](/models/hy4-preview)
- [MiMo-V2-Flash profile](/models/mimo-v2-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)