Hy4 preview vs Phi 4 Reasoning
Hy4 preview leads the LLM Stats Score 51.5 to 12.3.
Tencent · Microsoft · Updated for 2026
Which is better?
Hy4 preview leads the overall LLM Stats Score 51.5 to 12.3, ranking #10 overall.
In the 1 individual benchmarks reported for both models, Hy4 preview wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Hy4 preview
- overall performance matters — it scores 51.5 and ranks #10 on LLM Stats
- your work emphasizes reasoning and coding — it leads those capability indexes
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Aug 2026
Choose Phi 4 Reasoning
- you are already invested in the Microsoft ecosystem
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
32 reported for Hy4 preview · 11 for Phi 4 Reasoning
Hy4 preview outperforms in 1 benchmarks (GPQA), while Phi 4 Reasoning is better at 0 benchmarks.
Hy4 preview significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Model Size
Parameter count comparison
Hy4 preview has 756.0B more parameters than Phi 4 Reasoning, making it 5400.0% larger.
License
Usage and distribution terms
Hy4 preview is licensed under Apache 2.0, while Phi 4 Reasoning uses MIT.
License differences may affect how you can use these models in commercial or open-source projects.
Apache 2.0
Open weights
MIT
Open weights
Release Timeline
When each model was launched
Hy4 preview was released on 2026-08-28, while Phi 4 Reasoning was released on 2025-04-30.
Hy4 preview is 16 months newer than Phi 4 Reasoning.
Aug 28, 2026
2 days ago
1.3yr newerApr 30, 2025
1.3 years ago
Knowledge Cutoff
When training data ends
Phi 4 Reasoning has a documented knowledge cutoff of 2025-03-01, while Hy4 preview's cutoff date is not specified.
We can confirm Phi 4 Reasoning's training data extends to 2025-03-01, but cannot make a direct comparison without Hy4 preview's cutoff date.
—
Mar 2025
Outputs Comparison
Judge for yourself.
Run your own prompts against Hy4 preview and Phi 4 Reasoning side-by-side, then vote on the output you prefer.
FAQ
Common questions about Hy4 preview vs Phi 4 Reasoning.