Model comparison
Hy4 preview vs Yi-1.5-34B
Hy4 preview is the stronger model overall, scoring 45.3 to 30.6 on the Noometry Index.
Last verified . 0 shared benchmarks.
TencentSummary
- The widest gap is in math, where Hy4 preview leads 55.7 to 27.5.
Side by side
| Hy4 preview | Yi-1.5-34B | |
|---|---|---|
| Provider | Tencent | 01.AI |
| Noometry Index | 45.3 | 30.6 |
| Released | 2026-08-28 | 2024-05-13 |
| Weights | Open | Open |
| Context window | 1.05M | — |
| Max output | 64K | — |
| Input $ / M tokens | $0.83 | — |
| Output $ / M tokens | $2.50 | — |
| Results tracked | 3 | 21 |
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Category by category
Coding Hy4 preview leads
Hy4 preview: 51.6 (#38), Yi-1.5-34B: 32.4 (#272)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| LMArena WebDev | 1632 | — |
| BigCodeBench Instruct | — | 33.9% |
| LMArena Coding | — | 1169 |
| BigCodeBench Complete | — | 43.8% |
Reasoning Hy4 preview leads
Hy4 preview: 31.9 (#79), Yi-1.5-34B: 22.5 (#191)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| LMArena Hard Prompts | — | 1160 |
Math Hy4 preview leads
Hy4 preview: 55.7 (#42), Yi-1.5-34B: 27.5 (#249)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| ProofBench | 75% | — |
| LMArena Math | — | 1182 |
| MATH Level 5 | — | 25.5% |
Knowledge Not comparable
Hy4 preview: —, Yi-1.5-34B: 14.8 (#295)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| GPQA Diamond | — | 32% |
| LMArena Expert | — | 1144 |
Multilingual Not comparable
Hy4 preview: —, Yi-1.5-34B: 32.3 (#256)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| LMArena Non-English | — | 1121 |
| LMArena Chinese | — | 1213 |
| LMArena French | — | 1156 |
| LMArena German | — | 1111 |
| LMArena Japanese | — | 1021 |
| LMArena Korean | — | 1005 |
| LMArena Russian | — | 1091 |
| LMArena Spanish | — | 1121 |
Instruction Following Not comparable
Hy4 preview: —, Yi-1.5-34B: 59.2 (#257)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| LMArena Instruction Following | — | 1139 |
Long Context Not comparable
Hy4 preview: —, Yi-1.5-34B: 34.6 (#248)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| LMArena Longer Query | — | 1143 |
Writing & Preference Not comparable
Hy4 preview: —, Yi-1.5-34B: 37.4 (#257)
| Benchmark | Hy4 preview | Yi-1.5-34B |
|---|---|---|
| LMArena Text | — | 1173 |
| LMArena Creative Writing | — | 1135 |
| LMArena Multi-Turn | — | 1153 |
Frequently asked questions
Is Hy4 preview better than Yi-1.5-34B?
Hy4 preview is the stronger model overall, scoring 45.3 to 30.6 on the Noometry Index.
Is Hy4 preview or Yi-1.5-34B better for coding?
Hy4 preview scores higher on coding benchmarks: 51.6 versus 32.4 in the Noometry coding category.
How many benchmarks do Hy4 preview and Yi-1.5-34B share?
0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Yi-1.5-34B has 21.