Model comparison
Hy4 preview vs MiMo-V2-Pro
Hy4 preview is the stronger model overall, scoring 45.3 to 43.0 on the Noometry Index. MiMo-V2-Pro costs 2.1× less per token, which makes it the better buy when Hy4 preview's lead doesn't matter for your workload.
Last verified . 2 shared benchmarks.
TencentSummary
- They share 2 benchmarks with published results for both. Hy4 preview scores higher in 3 categories and MiMo-V2-Pro in 0 categories; 3 gaps are clear of the uncertainty.
- The widest gap is in math, where Hy4 preview leads 55.7 to 39.5.
- The biggest single-benchmark swing is NYT Connections (extended): 68.2% for Hy4 preview and 25.8% for MiMo-V2-Pro.
- MiMo-V2-Pro is cheaper at $0.43 / $0.87 per million input/output tokens, against $0.75 / $2.25 for Hy4 preview.
- Hy4 preview has downloadable open weights; the other is API-only.
Side by side
| Hy4 preview | MiMo-V2-Pro | |
|---|---|---|
| Provider | Tencent | Xiaomi |
| Noometry Index | 45.3 | 43.0 |
| Released | 2026-08-28 | 2026-03-18 |
| Weights | Open | Proprietary |
| Context window | 1.05M | 1.05M |
| Max output | 64K | 131K |
| Input $ / M tokens | $0.75 | $0.43 |
| Output $ / M tokens | $2.25 | $0.87 |
| Results tracked | 3 | 23 |
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Category by category
Coding Hy4 preview leads
Hy4 preview: 51.6 (#38), MiMo-V2-Pro: 43.8 (#83)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| LMArena WebDev | 1632 | 1433 |
| LMArena Coding | — | 1476 |
| ALE-Bench | — | 785.17 |
Reasoning Hy4 preview leads
Hy4 preview: 31.9 (#79), MiMo-V2-Pro: 22.1 (#206)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| NYT Connections (extended) | 68.2% | 25.8% |
| Thematic Generalization | — | 45.9% |
| LMArena Hard Prompts | — | 1457 |
Math Hy4 preview leads
Hy4 preview: 55.7 (#42), MiMo-V2-Pro: 39.5 (#102)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| ProofBench | 75% | — |
| LMArena Math | — | 1447 |
Knowledge Not comparable
Hy4 preview: —, MiMo-V2-Pro: 41.4 (#111)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| LMArena Expert | — | 1478 |
Multilingual Not comparable
Hy4 preview: —, MiMo-V2-Pro: 52.7 (#81)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| LMArena Non-English | — | 1416 |
| LMArena Chinese | — | 1456 |
| LMArena French | — | 1469 |
| LMArena German | — | 1417 |
| LMArena Japanese | — | 1366 |
| LMArena Korean | — | 1400 |
| LMArena Russian | — | 1427 |
| LMArena Spanish | — | 1457 |
Instruction Following Not comparable
Hy4 preview: —, MiMo-V2-Pro: 76.0 (#49)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| LMArena Instruction Following | — | 1445 |
Long Context Not comparable
Hy4 preview: —, MiMo-V2-Pro: 41.5 (#138)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| CL-bench | — | 15.7% |
| CL-bench Life | — | 6.9% |
| LMArena Longer Query | — | 1455 |
Writing & Preference Not comparable
Hy4 preview: —, MiMo-V2-Pro: 62.8 (#70)
| Benchmark | Hy4 preview | MiMo-V2-Pro |
|---|---|---|
| LMArena Text | — | 1436 |
| LMArena Creative Writing | — | 1415 |
| LMArena Multi-Turn | — | 1456 |
Frequently asked questions
Is Hy4 preview better than MiMo-V2-Pro?
Hy4 preview is the stronger model overall, scoring 45.3 to 43.0 on the Noometry Index. MiMo-V2-Pro costs 2.1× 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-Pro?
MiMo-V2-Pro is cheaper. It lists at $0.43 per million input tokens and $0.87 per million output tokens; Hy4 preview lists at $0.75 and $2.25.
Is Hy4 preview or MiMo-V2-Pro better for coding?
Hy4 preview scores higher on coding benchmarks: 51.6 versus 43.8 in the Noometry coding category.
Which has the bigger context window?
Both accept 1.05M tokens.
How many benchmarks do Hy4 preview and MiMo-V2-Pro share?
2 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and MiMo-V2-Pro has 23.