# Hy3 vs Hy4 preview

> Hy4 preview is the stronger model overall, scoring 45.3 to 44.2 on the Noometry Index. Hy3 costs 7.8× 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/hy3-vs-hy4-preview
- Last updated: 2026-10-10
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Hy3 scores higher in 0 categories and Hy4 preview in 3 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 55.7 to 40.1.
- The biggest single-benchmark swing is NYT Connections (extended): 41.2% for Hy3 and 68.2% for Hy4 preview.
- Hy3 is cheaper at $0.0825 / $0.33 per million input/output tokens, against $0.75 / $2.25 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 262K.

## Snapshot

| | Hy3 | Hy4 preview |
|---|---|---|
| Provider | Tencent | Tencent |
| Noometry Index | 44.2 | 45.3 |
| Rank | 79 | 73 |
| Context | 262K | 1.05M |
| Input $/M | $0.0825 | $0.75 |
| Output $/M | $0.33 | $2.25 |
| Weights | Open | Open |

## Coding

- Hy3: 46.8 (#63)
- Hy4 preview: 51.6 (#38)

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| LMArena WebDev | 1508 | 1632 |
| LMArena Coding | 1464 | — |

## Reasoning

- Hy3: 26.1 (#136)
- Hy4 preview: 31.9 (#79)

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| NYT Connections (extended) | 41.2% | 68.2% |
| LMArena Hard Prompts | 1447 | — |

## Math

- Hy3: 40.1 (#93)
- Hy4 preview: 55.7 (#42)

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| ProofBench | — | 75% |
| LMArena Math | 1475 | — |

## Knowledge

- Hy3: 40.8 (#114)
- Hy4 preview: —

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| LMArena Expert | 1460 | — |

## Multilingual

- Hy3: 53.5 (#65)
- Hy4 preview: —

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| LMArena Non-English | 1426 | — |
| LMArena Chinese | 1493 | — |
| LMArena French | 1461 | — |
| LMArena German | 1439 | — |
| LMArena Japanese | 1392 | — |
| LMArena Korean | 1395 | — |
| LMArena Russian | 1432 | — |
| LMArena Spanish | 1456 | — |

## Instruction Following

- Hy3: 75.1 (#70)
- Hy4 preview: —

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| LMArena Instruction Following | 1426 | — |

## Long Context

- Hy3: 44.1 (#75)
- Hy4 preview: —

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| LMArena Longer Query | 1442 | — |

## Writing & Preference

- Hy3: 62.2 (#81)
- Hy4 preview: —

| Benchmark | Hy3 | Hy4 preview |
|---|---|---|
| LMArena Text | 1439 | — |
| LMArena Creative Writing | 1402 | — |
| LMArena Multi-Turn | 1436 | — |

## FAQ

### Is Hy3 better than Hy4 preview?

Hy4 preview is the stronger model overall, scoring 45.3 to 44.2 on the Noometry Index. Hy3 costs 7.8× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.

### Which is cheaper, Hy3 or Hy4 preview?

Hy3 is cheaper. It lists at $0.0825 per million input tokens and $0.33 per million output tokens; Hy4 preview lists at $0.75 and $2.25.

### Is Hy3 or Hy4 preview better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 46.8 in the Noometry coding category.

### Which has the bigger context window?

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

### How many benchmarks do Hy3 and Hy4 preview share?

2 benchmarks have published results for both models. Hy3 has 19 scored results on Noometry and Hy4 preview has 3.