Model comparison
Hy4 preview vs Phi-4
Hy4 preview is the stronger model overall, scoring 44.6 to 30.9 on the Noometry Index. Phi-4 costs 14× 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.
Tencent
MicrosoftSummary
- The widest gap is in math, where Hy4 preview leads 54.5 to 19.6.
- Phi-4 is cheaper at $0.07 / $0.14 per million input/output tokens, against $0.83 / $2.50 for Hy4 preview.
- Hy4 preview accepts more context: 1.05M tokens versus 128K.
Side by side
| Hy4 preview | Phi-4 | |
|---|---|---|
| Provider | Tencent | Microsoft |
| Noometry Index | 44.6 | 30.9 |
| Released | 2026-08-28 | 2024-12-11 |
| Weights | Open | Open |
| Context window | 1.05M | 128K |
| Max output | 64K | 4K |
| Input $ / M tokens | $0.83 | $0.07 |
| Output $ / M tokens | $2.50 | $0.14 |
| Results tracked | 3 | 37 |
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Category by category
Coding Hy4 preview leads
Hy4 preview: 51.4 (#36), Phi-4: 33.8 (#237)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| LMArena WebDev | 1633 | — |
| BigCodeBench Instruct | — | 45.5% |
| LiveBench Coding | — | 30.7% |
| LMArena Coding | — | 1231 |
| BigCodeBench Complete | — | 55.4% |
Agentic & Tool Use Not comparable
Hy4 preview: —, Phi-4: 22.6 (#120)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 28.8% |
| BALROG | — | 11.6% |
Reasoning Hy4 preview leads
Hy4 preview: 30.6 (#75), Phi-4: 17.0 (#287)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| NYT Connections (extended) | 68.2% | — |
| Chess Puzzles | — | 1% |
| LiveBench Reasoning | — | 47.8% |
| LMArena Hard Prompts | — | 1220 |
| LiveBench Data Analysis | — | 45.2% |
| Epoch Capabilities Index | — | 130.43 |
| LiveBench | — | 41.6% |
Math Hy4 preview leads
Hy4 preview: 54.5 (#37), Phi-4: 19.6 (#279)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 13.8% |
| ProofBench | 75% | — |
| LiveBench Math | — | 42% |
| LMArena Math | — | 1246 |
| MATH Level 5 | — | 64.9% |
Knowledge Not comparable
Hy4 preview: —, Phi-4: 32.5 (#204)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| GPQA Diamond | — | 56.1% |
| Confabulations | — | 29.4% |
| Vectara Hallucination Rate | — | 3.7% |
| LMArena Expert | — | 1203 |
| MMLU | — | 84.8% |
Multilingual Not comparable
Hy4 preview: —, Phi-4: 37.4 (#232)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| LMArena Non-English | — | 1197 |
| LMArena Chinese | — | 1211 |
| LMArena French | — | 1223 |
| LMArena German | — | 1222 |
| LMArena Japanese | — | 1158 |
| LMArena Korean | — | 1151 |
| LMArena Russian | — | 1209 |
| LMArena Spanish | — | 1234 |
Instruction Following Not comparable
Hy4 preview: —, Phi-4: 60.6 (#246)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| LiveBench Instruction Following | — | 58.4% |
| LMArena Instruction Following | — | 1201 |
Long Context Not comparable
Hy4 preview: —, Phi-4: 36.9 (#221)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| LMArena Longer Query | — | 1217 |
Writing & Preference Not comparable
Hy4 preview: —, Phi-4: 40.7 (#239)
| Benchmark | Hy4 preview | Phi-4 |
|---|---|---|
| LMArena Text | — | 1217 |
| LMArena Creative Writing | — | 1182 |
| Short-Story Creative Writing | — | 62.6% |
| LMArena Multi-Turn | — | 1206 |
| LiveBench Language | — | 25.6% |
Frequently asked questions
Is Hy4 preview better than Phi-4?
Hy4 preview is the stronger model overall, scoring 44.6 to 30.9 on the Noometry Index. Phi-4 costs 14× 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 Phi-4?
Phi-4 is cheaper. It lists at $0.07 per million input tokens and $0.14 per million output tokens; Hy4 preview lists at $0.83 and $2.50.
Is Hy4 preview or Phi-4 better for coding?
Hy4 preview scores higher on coding benchmarks: 51.4 versus 33.8 in the Noometry coding category.
Which has the bigger context window?
Hy4 preview does, with 1.05M tokens against 128K.
How many benchmarks do Hy4 preview and Phi-4 share?
0 benchmarks have published results for both models. Hy4 preview has 3 scored results on Noometry and Phi-4 has 37.