# Hy4 preview vs MiMo-V2.6-Pro

> MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 45.3 on the Noometry Index.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-mimo-v2-6-pro
- Last updated: 2026-10-11
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Hy4 preview scores higher in 1 category and MiMo-V2.6-Pro in 2 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where MiMo-V2.6-Pro leads 43.1 to 31.9.
- The biggest single-benchmark swing is ProofBench: 75% for Hy4 preview and 70% for MiMo-V2.6-Pro.
- MiMo-V2.6-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $0.83 / $2.50 for Hy4 preview.

## Snapshot

| | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| Provider | Tencent | Xiaomi |
| Noometry Index | 45.3 | 50.3 |
| Rank | 73 | 49 |
| Context | 1.05M | 1.05M |
| Input $/M | $0.83 | $0.43 |
| Output $/M | $2.50 | $0.87 |
| Weights | Open | Open |

## Coding

- Hy4 preview: 51.6 (#38)
- MiMo-V2.6-Pro: 55.5 (#23)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| LMArena WebDev | 1632 | 1629 |
| SciCode | — | 60.9% |
| LMArena Coding | — | 1534 |
| ALE-Bench | — | 1,158 |

## Agentic & Tool Use

- Hy4 preview: —
- MiMo-V2.6-Pro: 37.5 (#35)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| APEX-Agents | — | 59.5% |

## Reasoning

- Hy4 preview: 31.9 (#79)
- MiMo-V2.6-Pro: 43.1 (#50)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| CritPt | — | 26.6% |
| LMArena Hard Prompts | — | 1512 |

## Math

- Hy4 preview: 55.7 (#42)
- MiMo-V2.6-Pro: 54.5 (#45)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| ProofBench | 75% | 70% |
| LMArena Math | — | 1494 |

## Knowledge

- Hy4 preview: —
- MiMo-V2.6-Pro: 43.5 (#92)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Expert | — | 1543 |

## Multimodal

- Hy4 preview: —
- MiMo-V2.6-Pro: 40.8 (#43)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Vision | — | 1264 |

## Multilingual

- Hy4 preview: —
- MiMo-V2.6-Pro: 56.9 (#14)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Non-English | — | 1474 |
| LMArena Chinese | — | 1529 |
| LMArena Russian | — | 1480 |

## Instruction Following

- Hy4 preview: —
- MiMo-V2.6-Pro: 78.2 (#12)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Instruction Following | — | 1493 |

## Long Context

- Hy4 preview: —
- MiMo-V2.6-Pro: 46.0 (#27)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Longer Query | — | 1501 |

## Writing & Preference

- Hy4 preview: —
- MiMo-V2.6-Pro: 66.8 (#33)

| Benchmark | Hy4 preview | MiMo-V2.6-Pro |
|---|---|---|
| LMArena Text | — | 1492 |
| LMArena Creative Writing | — | 1468 |
| LMArena Multi-Turn | — | 1464 |

## FAQ

### Is Hy4 preview better than MiMo-V2.6-Pro?

MiMo-V2.6-Pro is the stronger model overall, scoring 50.3 to 45.3 on the Noometry Index.

### Which is cheaper, Hy4 preview or MiMo-V2.6-Pro?

MiMo-V2.6-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; Hy4 preview lists at $0.83 and $2.50.

### Is Hy4 preview or MiMo-V2.6-Pro better for coding?

MiMo-V2.6-Pro scores higher on coding benchmarks: 55.5 versus 51.6 in the Noometry coding category.

### Which has the bigger context window?

Both accept 1.05M tokens.

### How many benchmarks do Hy4 preview and MiMo-V2.6-Pro share?

2 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and MiMo-V2.6-Pro has 19.