# Hy4 preview vs Qwen3.5 27B

> Hy4 preview is the stronger model overall, scoring 45.3 to 41.9 on the Noometry Index. Qwen3.5 27B costs 1.5× 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-qwen3-5-27b
- Last updated: 2026-10-12
- Shared benchmarks: 2

## Summary

- They share 2 benchmarks with published results for both. Hy4 preview scores higher in 3 categories and Qwen3.5 27B in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 55.7 to 38.8.
- The biggest single-benchmark swing is NYT Connections (extended): 68.2% for Hy4 preview and 47.9% for Qwen3.5 27B.
- Qwen3.5 27B is cheaper at $0.30 / $2.40 per million input/output tokens, against $0.83 / $2.50 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 262K.

## Snapshot

| | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| Provider | Tencent | Alibaba (Qwen) |
| Noometry Index | 45.3 | 41.9 |
| Rank | 73 | 127 |
| Context | 1.05M | 262K |
| Input $/M | $0.83 | $0.30 |
| Output $/M | $2.50 | $2.40 |
| Weights | Open | Open |

## Coding

- Hy4 preview: 51.6 (#38)
- Qwen3.5 27B: 38.9 (#168)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| LMArena WebDev | 1632 | 1358 |
| WeirdML | — | 39.5% |
| LMArena Coding | — | 1427 |
| ALE-Bench | — | 349.45 |

## Agentic & Tool Use

- Hy4 preview: —
- Qwen3.5 27B: —

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| Vending-Bench 2 | — | 201.98 |

## Reasoning

- Hy4 preview: 31.9 (#79)
- Qwen3.5 27B: 27.5 (#117)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| NYT Connections (extended) | 68.2% | 47.9% |
| Thematic Generalization | — | 45.5% |
| LMArena Hard Prompts | — | 1414 |
| DTBench | — | 82.4% |
| LMCA | — | 34% |

## Math

- Hy4 preview: 55.7 (#42)
- Qwen3.5 27B: 38.8 (#127)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| MathArena Final-Answer Competitions | — | 56.7% |
| ProofBench | 75% | — |
| LMArena Math | — | 1429 |

## Knowledge

- Hy4 preview: —
- Qwen3.5 27B: 38.0 (#150)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| Vectara Hallucination Rate | — | 12.1% |
| LMArena Expert | — | 1428 |

## Multimodal

- Hy4 preview: —
- Qwen3.5 27B: 39.4 (#59)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| LMArena Vision | — | 1241 |

## Multilingual

- Hy4 preview: —
- Qwen3.5 27B: 50.8 (#115)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| LMArena Non-English | — | 1390 |
| LMArena Chinese | — | 1478 |
| LMArena French | — | 1410 |
| LMArena German | — | 1393 |
| LMArena Japanese | — | 1345 |
| LMArena Korean | — | 1358 |
| LMArena Russian | — | 1390 |
| LMArena Spanish | — | 1407 |

## Instruction Following

- Hy4 preview: —
- Qwen3.5 27B: 73.5 (#119)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| LMArena Instruction Following | — | 1393 |

## Long Context

- Hy4 preview: —
- Qwen3.5 27B: 43.1 (#106)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| LMArena Longer Query | — | 1413 |

## Writing & Preference

- Hy4 preview: —
- Qwen3.5 27B: 59.3 (#111)

| Benchmark | Hy4 preview | Qwen3.5 27B |
|---|---|---|
| LMArena Text | — | 1409 |
| LMArena Creative Writing | — | 1362 |
| LMArena Multi-Turn | — | 1410 |

## FAQ

### Is Hy4 preview better than Qwen3.5 27B?

Hy4 preview is the stronger model overall, scoring 45.3 to 41.9 on the Noometry Index. Qwen3.5 27B costs 1.5× 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 Qwen3.5 27B?

Qwen3.5 27B is cheaper. It lists at $0.30 per million input tokens and $2.40 per million output tokens; Hy4 preview lists at $0.83 and $2.50.

### Is Hy4 preview or Qwen3.5 27B better for coding?

Hy4 preview scores higher on coding benchmarks: 51.6 versus 38.9 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 Qwen3.5 27B share?

2 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Qwen3.5 27B has 28.