# Hy4 preview vs Yi-34B

> Hy4 preview is the stronger model overall, scoring 45.3 to 27.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-yi-34b
- Last updated: 2026-10-11
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Hy4 preview leads 55.7 to 21.6.

## Snapshot

| | Hy4 preview | Yi-34B |
|---|---|---|
| Provider | Tencent | 01.AI |
| Noometry Index | 45.3 | 27.8 |
| Rank | 73 | 329 |
| Context | 1.05M | — |
| Input $/M | $0.83 | — |
| Output $/M | $2.50 | — |
| Weights | Open | Open |

## Coding

- Hy4 preview: 51.6 (#38)
- Yi-34B: 32.3 (#274)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| LMArena WebDev | 1632 | — |
| LMArena Coding | — | 1112 |

## Reasoning

- Hy4 preview: 31.9 (#79)
- Yi-34B: 21.2 (#226)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| LMArena Hard Prompts | — | 1104 |
| BIG-Bench Hard | — | 71.7% |
| Epoch Capabilities Index | — | 117.39 |

## Math

- Hy4 preview: 55.7 (#42)
- Yi-34B: 21.6 (#282)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| ProofBench | 75% | — |
| LMArena Math | — | 1114 |
| MATH Level 5 | — | 5.1% |
| GSM8K | — | 76% |

## Knowledge

- Hy4 preview: —
- Yi-34B: 7.5 (#309)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| GPQA Diamond | — | 14.7% |
| LMArena Expert | — | 1061 |
| MMLU | — | 76.3% |

## Multilingual

- Hy4 preview: —
- Yi-34B: 29.7 (#264)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| LMArena Non-English | — | 1079 |
| LMArena Chinese | — | 1176 |
| LMArena French | — | 1081 |
| LMArena German | — | 1042 |
| LMArena Japanese | — | 993 |
| LMArena Korean | — | 959 |
| LMArena Russian | — | 1050 |
| LMArena Spanish | — | 1070 |

## Instruction Following

- Hy4 preview: —
- Yi-34B: 56.2 (#274)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| LMArena Instruction Following | — | 1091 |

## Long Context

- Hy4 preview: —
- Yi-34B: 33.2 (#264)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| LMArena Longer Query | — | 1094 |

## Writing & Preference

- Hy4 preview: —
- Yi-34B: 34.1 (#273)

| Benchmark | Hy4 preview | Yi-34B |
|---|---|---|
| LMArena Text | — | 1129 |
| LMArena Creative Writing | — | 1108 |
| LMArena Multi-Turn | — | 1113 |

## FAQ

### Is Hy4 preview better than Yi-34B?

Hy4 preview is the stronger model overall, scoring 45.3 to 27.8 on the Noometry Index.

### Is Hy4 preview or Yi-34B better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 32.3 in the Noometry coding category.

### How many benchmarks do Hy4 preview and Yi-34B share?

0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Yi-34B has 23.