# Hy4 preview vs MiMo-V2.5-Pro

> Hy4 preview and MiMo-V2.5-Pro score almost the same on the Noometry Index (45.3 vs 45.2), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-mimo-v2-5-pro
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. Hy4 preview scores higher in 3 categories and MiMo-V2.5-Pro in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 55.7 to 40.0.
- The biggest single-benchmark swing is ProofBench: 75% for Hy4 preview and 22% for MiMo-V2.5-Pro.
- MiMo-V2.5-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $0.75 / $2.25 for Hy4 preview.

## Snapshot

| | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| Provider | Tencent | Xiaomi |
| Noometry Index | 45.3 | 45.2 |
| Rank | 73 | 74 |
| Context | 1.05M | 1.05M |
| Input $/M | $0.75 | $0.43 |
| Output $/M | $2.25 | $0.87 |
| Weights | Open | Open |

## Coding

- Hy4 preview: 51.6 (#38)
- MiMo-V2.5-Pro: 47.4 (#60)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| LMArena WebDev | 1632 | 1479 |
| SciCode | — | 50.2% |
| LMArena Coding | — | 1503 |
| ALE-Bench | — | 899.8 |

## Reasoning

- Hy4 preview: 31.9 (#79)
- MiMo-V2.5-Pro: 26.8 (#130)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| NYT Connections (extended) | 68.2% | 34.4% |
| CritPt | — | 4% |
| LMArena Hard Prompts | — | 1488 |
| DTBench | — | 84.5% |
| LMCA | — | 29.5% |

## Math

- Hy4 preview: 55.7 (#42)
- MiMo-V2.5-Pro: 40.0 (#96)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| ProofBench | 75% | 22% |
| LMArena Math | — | 1481 |

## Knowledge

- Hy4 preview: —
- MiMo-V2.5-Pro: 42.2 (#98)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Expert | — | 1503 |

## Multilingual

- Hy4 preview: —
- MiMo-V2.5-Pro: 55.1 (#34)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Non-English | — | 1449 |
| LMArena Chinese | — | 1507 |
| LMArena French | — | 1488 |
| LMArena German | — | 1458 |
| LMArena Japanese | — | 1412 |
| LMArena Korean | — | 1437 |
| LMArena Russian | — | 1450 |
| LMArena Spanish | — | 1471 |

## Instruction Following

- Hy4 preview: —
- MiMo-V2.5-Pro: 77.5 (#21)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Instruction Following | — | 1477 |

## Long Context

- Hy4 preview: —
- MiMo-V2.5-Pro: 45.4 (#37)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Longer Query | — | 1483 |

## Writing & Preference

- Hy4 preview: —
- MiMo-V2.5-Pro: 65.3 (#49)

| Benchmark | Hy4 preview | MiMo-V2.5-Pro |
|---|---|---|
| LMArena Text | — | 1465 |
| LMArena Creative Writing | — | 1440 |
| EQ-Bench Creative Writing | — | 1493 |
| EQ-Bench 4 | — | 1208 |
| LMArena Multi-Turn | — | 1477 |

## FAQ

### Is Hy4 preview better than MiMo-V2.5-Pro?

Hy4 preview and MiMo-V2.5-Pro score almost the same on the Noometry Index (45.3 vs 45.2), so choose on price, context window or the category you care about most.

### Which is cheaper, Hy4 preview or MiMo-V2.5-Pro?

MiMo-V2.5-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; Hy4 preview lists at $0.75 and $2.25.

### Is Hy4 preview or MiMo-V2.5-Pro better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 47.4 in the Noometry coding category.

### Which has the bigger context window?

Both accept 1.05M tokens.

### How many benchmarks do Hy4 preview and MiMo-V2.5-Pro share?

3 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and MiMo-V2.5-Pro has 27.