# Hy4 preview vs Muse Spark 1.1

> Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 44.6 on the Noometry Index. Hy4 preview costs 1.6× less per token, which makes it the better buy when Muse Spark 1.1's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/hy4-preview-vs-muse-spark-1-1
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. Hy4 preview scores higher in 2 categories and Muse Spark 1.1 in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Muse Spark 1.1 leads 45.9 to 30.6.
- The biggest single-benchmark swing is ProofBench: 75% for Hy4 preview and 39% for Muse Spark 1.1.
- Hy4 preview is cheaper at $0.83 / $2.50 per million input/output tokens, against $1.25 / $4.25 for Muse Spark 1.1.
- Hy4 preview has downloadable open weights; the other is API-only.

## Snapshot

| | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| Provider | Tencent | Meta |
| Noometry Index | 44.6 | 49.9 |
| Rank | 73 | 43 |
| Context | 1.05M | 1.05M |
| Input $/M | $0.83 | $1.25 |
| Output $/M | $2.50 | $4.25 |
| Weights | Open | Proprietary |

## Coding

- Hy4 preview: 51.4 (#36)
- Muse Spark 1.1: 50.8 (#38)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| LMArena WebDev | 1633 | 1542 |
| DeepSWE | — | 53.3% |
| SciCode | — | 58.8% |
| LMArena Coding | — | 1497 |

## Agentic & Tool Use

- Hy4 preview: —
- Muse Spark 1.1: 33.9 (#45)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| τ²-bench Banking | — | 40.5% |
| GBAEval | — | 7.9% |
| GDP.pdf | — | 15% |
| Vending-Bench 2 | — | 6,520 |

## Reasoning

- Hy4 preview: 30.6 (#75)
- Muse Spark 1.1: 45.9 (#41)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| NYT Connections (extended) | 68.2% | 84.9% |
| CritPt | — | 15.1% |
| LMArena Hard Prompts | — | 1486 |
| DTBench | — | 94.4% |
| LMCA | — | 49.9% |
| Surface Evolver Bench | — | 52.5% |
| Epoch Capabilities Index | — | 154.32 |

## Math

- Hy4 preview: 54.5 (#37)
- Muse Spark 1.1: 44.0 (#67)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| ProofBench | 75% | 39% |
| LMArena Math | — | 1477 |

## Knowledge

- Hy4 preview: —
- Muse Spark 1.1: 52.8 (#55)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| SimpleQA Verified | — | 57.8% |
| LMArena Expert | — | 1480 |

## Multimodal

- Hy4 preview: —
- Muse Spark 1.1: 41.9 (#28)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| LMArena Vision | — | 1292 |
| LMArena Document | — | 1465 |

## Multilingual

- Hy4 preview: —
- Muse Spark 1.1: 56.8 (#16)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| LMArena Non-English | — | 1471 |
| LMArena Chinese | — | 1518 |
| LMArena French | — | 1494 |
| LMArena German | — | 1466 |
| LMArena Japanese | — | 1445 |
| LMArena Korean | — | 1459 |
| LMArena Russian | — | 1482 |
| LMArena Spanish | — | 1471 |

## Instruction Following

- Hy4 preview: —
- Muse Spark 1.1: 76.8 (#36)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| LMArena Instruction Following | — | 1457 |

## Long Context

- Hy4 preview: —
- Muse Spark 1.1: 44.8 (#55)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| LMArena Longer Query | — | 1463 |

## Writing & Preference

- Hy4 preview: —
- Muse Spark 1.1: 73.6 (#11)

| Benchmark | Hy4 preview | Muse Spark 1.1 |
|---|---|---|
| LMArena Text | — | 1479 |
| LMArena Creative Writing | — | 1440 |
| EQ-Bench Creative Writing | — | 1927 |
| EQ-Bench 4 | — | 1260 |
| LMArena Multi-Turn | — | 1484 |

## FAQ

### Is Hy4 preview better than Muse Spark 1.1?

Muse Spark 1.1 is the stronger model overall, scoring 49.9 to 44.6 on the Noometry Index. Hy4 preview costs 1.6× less per token, which makes it the better buy when Muse Spark 1.1's lead doesn't matter for your workload.

### Which is cheaper, Hy4 preview or Muse Spark 1.1?

Hy4 preview is cheaper. It lists at $0.83 per million input tokens and $2.50 per million output tokens; Muse Spark 1.1 lists at $1.25 and $4.25.

### Is Hy4 preview or Muse Spark 1.1 better for coding?

They score almost the same on coding (51.4 vs 50.8); test both on your own repository before choosing.

### Which has the bigger context window?

Both accept 1.05M tokens.

### How many benchmarks do Hy4 preview and Muse Spark 1.1 share?

3 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Muse Spark 1.1 has 36.