Model comparison
Hy4 preview vs MiMo-V2-Omni
Hy4 preview is the stronger model overall, scoring 45.3 to 43.6 on the Noometry Index. MiMo-V2-Omni costs 6.4× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.
Last verified . 0 shared benchmarks.
TencentSummary
- The widest gap is in math, where Hy4 preview leads 55.7 to 39.1.
- MiMo-V2-Omni is cheaper at $0.14 / $0.28 per million input/output tokens, against $0.75 / $2.25 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 262K.
- Hy4 preview has downloadable open weights; the other is API-only.
Side by side
| Hy4 preview | MiMo-V2-Omni | |
|---|---|---|
| Provider | Tencent | Xiaomi |
| Noometry Index | 45.3 | 43.6 |
| Released | 2026-08-28 | 2026-03-18 |
| Weights | Open | Proprietary |
| Context window | 1.05M | 262K |
| Max output | 64K | 131K |
| Input $ / M tokens | $0.75 | $0.14 |
| Output $ / M tokens | $2.25 | $0.28 |
| Results tracked | 3 | 18 |
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Category by category
Coding Hy4 preview leads
Hy4 preview: 51.6 (#38), MiMo-V2-Omni: 43.3 (#89)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena WebDev | 1632 | — |
| LMArena Coding | — | 1466 |
Reasoning Hy4 preview leads
Hy4 preview: 31.9 (#79), MiMo-V2-Omni: 29.7 (#88)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| LMArena Hard Prompts | — | 1445 |
Math Hy4 preview leads
Hy4 preview: 55.7 (#42), MiMo-V2-Omni: 39.1 (#115)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| ProofBench | 75% | — |
| LMArena Math | — | 1430 |
Knowledge Not comparable
Hy4 preview: —, MiMo-V2-Omni: 40.5 (#118)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Expert | — | 1449 |
Multimodal Not comparable
Hy4 preview: —, MiMo-V2-Omni: 38.6 (#63)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Vision | — | 1228 |
Multilingual Not comparable
Hy4 preview: —, MiMo-V2-Omni: 51.8 (#102)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Non-English | — | 1404 |
| LMArena Chinese | — | 1465 |
| LMArena French | — | 1447 |
| LMArena German | — | 1399 |
| LMArena Japanese | — | 1317 |
| LMArena Korean | — | 1355 |
| LMArena Russian | — | 1412 |
| LMArena Spanish | — | 1434 |
Instruction Following Not comparable
Hy4 preview: —, MiMo-V2-Omni: 75.2 (#66)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Instruction Following | — | 1428 |
Long Context Not comparable
Hy4 preview: —, MiMo-V2-Omni: 44.1 (#76)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Longer Query | — | 1442 |
Writing & Preference Not comparable
Hy4 preview: —, MiMo-V2-Omni: 61.4 (#87)
| Benchmark | Hy4 preview | MiMo-V2-Omni |
|---|---|---|
| LMArena Text | — | 1423 |
| LMArena Creative Writing | — | 1392 |
| LMArena Multi-Turn | — | 1445 |
Frequently asked questions
Is Hy4 preview better than MiMo-V2-Omni?
Hy4 preview is the stronger model overall, scoring 45.3 to 43.6 on the Noometry Index. MiMo-V2-Omni costs 6.4× 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 MiMo-V2-Omni?
MiMo-V2-Omni is cheaper. It lists at $0.14 per million input tokens and $0.28 per million output tokens; Hy4 preview lists at $0.75 and $2.25.
Is Hy4 preview or MiMo-V2-Omni better for coding?
Hy4 preview scores higher on coding benchmarks: 51.6 versus 43.3 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 MiMo-V2-Omni share?
0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and MiMo-V2-Omni has 18.