# Hy4 preview vs Step 3

> Hy4 preview is the stronger model overall, scoring 45.3 to 40.5 on the Noometry Index.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-step-3
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Hy4 preview leads 55.7 to 37.6.

## Snapshot

| | Hy4 preview | Step 3 |
|---|---|---|
| Provider | Tencent | StepFun |
| Noometry Index | 45.3 | 40.5 |
| Rank | 73 | 149 |
| Context | 1.05M | — |
| Input $/M | $0.83 | — |
| Output $/M | $2.50 | — |
| Weights | Open | Open |

## Coding

- Hy4 preview: 51.6 (#38)
- Step 3: 40.1 (#147)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| LMArena WebDev | 1632 | — |
| LMArena Coding | — | 1367 |

## Reasoning

- Hy4 preview: 31.9 (#79)
- Step 3: 28.4 (#105)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| Kagi LLM Benchmark | — | 62.3% |
| NYT Connections (extended) | 68.2% | — |
| LMArena Hard Prompts | — | 1355 |

## Math

- Hy4 preview: 55.7 (#42)
- Step 3: 37.6 (#148)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| ProofBench | 75% | — |
| LMArena Math | — | 1366 |

## Knowledge

- Hy4 preview: —
- Step 3: 36.8 (#164)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| LMArena Expert | — | 1333 |

## Multimodal

- Hy4 preview: —
- Step 3: 35.5 (#86)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| LMArena Vision | — | 1177 |

## Multilingual

- Hy4 preview: —
- Step 3: 46.3 (#159)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| LMArena Non-English | — | 1327 |
| LMArena Chinese | — | 1397 |
| LMArena German | — | 1371 |
| LMArena Korean | — | 1269 |
| LMArena Russian | — | 1331 |
| LMArena Spanish | — | 1371 |

## Instruction Following

- Hy4 preview: —
- Step 3: 70.4 (#164)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| LMArena Instruction Following | — | 1332 |

## Long Context

- Hy4 preview: —
- Step 3: 40.3 (#157)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| LMArena Longer Query | — | 1326 |

## Writing & Preference

- Hy4 preview: —
- Step 3: 54.3 (#151)

| Benchmark | Hy4 preview | Step 3 |
|---|---|---|
| LMArena Text | — | 1350 |
| LMArena Creative Writing | — | 1321 |
| LMArena Multi-Turn | — | 1341 |

## FAQ

### Is Hy4 preview better than Step 3?

Hy4 preview is the stronger model overall, scoring 45.3 to 40.5 on the Noometry Index.

### Is Hy4 preview or Step 3 better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 40.1 in the Noometry coding category.

### How many benchmarks do Hy4 preview and Step 3 share?

0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Step 3 has 17.