Model comparison
Hy4 preview vs Qwen3.8 27B
Hy4 preview and Qwen3.8 27B score almost the same on the Noometry Index (44.6 vs 45.3), so choose on price, context window or the category you care about most.
Last verified . 3 shared benchmarks.
Tencent
Alibaba (Qwen)Summary
- They share 3 benchmarks with published results for both. Hy4 preview scores higher in 2 categories and Qwen3.8 27B in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 54.5 to 35.7.
- The biggest single-benchmark swing is ProofBench: 75% for Hy4 preview and 16% for Qwen3.8 27B.
- Qwen3.8 27B is cheaper at $0.99 / $1.49 per million input/output tokens, against $0.83 / $2.50 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 262K.
Side by side
| Hy4 preview | Qwen3.8 27B | |
|---|---|---|
| Provider | Tencent | Alibaba (Qwen) |
| Noometry Index | 44.6 | 45.3 |
| Released | 2026-08-28 | 2026-08-14 |
| Weights | Open | Open |
| Context window | 1.05M | 262K |
| Max output | 64K | 33K |
| Input $ / M tokens | $0.83 | $0.99 |
| Output $ / M tokens | $2.50 | $1.49 |
| Results tracked | 3 | 28 |
Sponsored placements are available on pages like this one. Advertise on Noometry
Category by category
Coding Hy4 preview leads
Hy4 preview: 51.4 (#36), Qwen3.8 27B: 50.3 (#42)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| LMArena WebDev | 1633 | 1592 |
| SciCode | — | 46.6% |
| LMArena Coding | — | 1487 |
Reasoning Too close to call
Hy4 preview: 30.6 (#75), Qwen3.8 27B: 31.5 (#71)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| NYT Connections (extended) | 68.2% | 54.5% |
| CritPt | — | 5.4% |
| LMArena Hard Prompts | — | 1459 |
| DTBench | — | 88% |
| LMCA | — | 41.4% |
| Surface Evolver Bench | — | 45% |
| Epoch Capabilities Index | — | 149.38 |
Math Hy4 preview leads
Hy4 preview: 54.5 (#37), Qwen3.8 27B: 35.7 (#139)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| ProofBench | 75% | 16% |
| LMArena Math | — | 1453 |
Knowledge Not comparable
Hy4 preview: —, Qwen3.8 27B: 40.9 (#105)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| LMArena Expert | — | 1482 |
Multimodal Not comparable
Hy4 preview: —, Qwen3.8 27B: 40.5 (#36)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| LMArena Vision | — | 1270 |
Multilingual Not comparable
Hy4 preview: —, Qwen3.8 27B: 54.0 (#54)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| LMArena Non-English | — | 1431 |
| LMArena Chinese | — | 1504 |
| LMArena French | — | 1468 |
| LMArena German | — | 1435 |
| LMArena Japanese | — | 1392 |
| LMArena Korean | — | 1389 |
| LMArena Russian | — | 1421 |
| LMArena Spanish | — | 1444 |
Instruction Following Not comparable
Hy4 preview: —, Qwen3.8 27B: 75.8 (#54)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| LMArena Instruction Following | — | 1436 |
Long Context Not comparable
Hy4 preview: —, Qwen3.8 27B: 44.3 (#66)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| LMArena Longer Query | — | 1448 |
Writing & Preference Not comparable
Hy4 preview: —, Qwen3.8 27B: 65.9 (#41)
| Benchmark | Hy4 preview | Qwen3.8 27B |
|---|---|---|
| LMArena Text | — | 1441 |
| LMArena Creative Writing | — | 1382 |
| EQ-Bench Creative Writing | — | 1671 |
| LMArena Multi-Turn | — | 1443 |
Frequently asked questions
Is Hy4 preview better than Qwen3.8 27B?
Hy4 preview and Qwen3.8 27B score almost the same on the Noometry Index (44.6 vs 45.3), so choose on price, context window or the category you care about most.
Which is cheaper, Hy4 preview or Qwen3.8 27B?
Qwen3.8 27B is cheaper. It lists at $0.99 per million input tokens and $1.49 per million output tokens; Hy4 preview lists at $0.83 and $2.50.
Is Hy4 preview or Qwen3.8 27B better for coding?
Hy4 preview scores higher on coding benchmarks: 51.4 versus 50.3 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 Qwen3.8 27B share?
3 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Qwen3.8 27B has 28.