# Hy4 preview vs MiMo-V2-Omni

> Hy4 preview is the stronger model overall, scoring 45.3 to 43.6 on the Noometry Index. MiMo-V2-Omni costs 6.4× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-mimo-v2-omni
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Hy4 preview leads 55.7 to 39.1.
- MiMo-V2-Omni is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.75 / $2.25 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 262K.
- Hy4 preview has downloadable open weights; the other is API-only.

## Snapshot

| | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| Provider | Tencent | Xiaomi |
| Noometry Index | 45.3 | 43.6 |
| Rank | 73 | 88 |
| Context | 1.05M | 262K |
| Input $/M | $0.75 | $0.14 |
| Output $/M | $2.25 | $0.28 |
| Weights | Open | Proprietary |

## Coding

- Hy4 preview: 51.6 (#38)
- MiMo-V2-Omni: 43.3 (#89)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena WebDev | 1632 | — |
| LMArena Coding | — | 1466 |

## Reasoning

- Hy4 preview: 31.9 (#79)
- MiMo-V2-Omni: 29.7 (#88)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| LMArena Hard Prompts | — | 1445 |

## Math

- Hy4 preview: 55.7 (#42)
- MiMo-V2-Omni: 39.1 (#115)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| ProofBench | 75% | — |
| LMArena Math | — | 1430 |

## Knowledge

- Hy4 preview: —
- MiMo-V2-Omni: 40.5 (#118)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Expert | — | 1449 |

## Multimodal

- Hy4 preview: —
- MiMo-V2-Omni: 38.6 (#63)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |

## Multilingual

- Hy4 preview: —
- MiMo-V2-Omni: 51.8 (#102)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1465 |
| LMArena French | — | 1447 |
| LMArena German | — | 1399 |
| LMArena Japanese | — | 1317 |
| LMArena Korean | — | 1355 |
| LMArena Russian | — | 1412 |
| LMArena Spanish | — | 1434 |

## Instruction Following

- Hy4 preview: —
- MiMo-V2-Omni: 75.2 (#66)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | — | 1428 |

## Long Context

- Hy4 preview: —
- MiMo-V2-Omni: 44.1 (#76)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | — | 1442 |

## Writing & Preference

- Hy4 preview: —
- MiMo-V2-Omni: 61.4 (#87)

| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | — | 1423 |
| LMArena Creative Writing | — | 1392 |
| LMArena Multi-Turn | — | 1445 |

## FAQ

### Is Hy4 preview better than MiMo-V2-Omni?

Hy4 preview is the stronger model overall, scoring 45.3 to 43.6 on the Noometry Index. MiMo-V2-Omni costs 6.4× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.

### Which is cheaper, Hy4 preview or MiMo-V2-Omni?

MiMo-V2-Omni is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Hy4 preview lists at $0.75 and $2.25.

### Is Hy4 preview or MiMo-V2-Omni better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 43.3 in the Noometry coding category.

### Which has the bigger context window?

Hy4 preview does, with 1.05M tokens against 262K.

### How many benchmarks do Hy4 preview and MiMo-V2-Omni share?

0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and MiMo-V2-Omni has 18.