Model Comparison
DeepSeek R1 Zero vs Phi 4 Mini ReasoningWhich is better in 2026?
DeepSeek R1 Zero significantly outperforms across most benchmarks.
Verdict: DeepSeek R1 Zero vs Phi 4 Mini Reasoning — which is better?
DeepSeek R1 Zero (by DeepSeek) and Phi 4 Mini Reasoning (by Microsoft) are two of the AI models people compare most. Here is how they stack up on benchmarks, price and capabilities, and which one to pick in 2026.
DeepSeek R1 Zero outperforms in 2 benchmarks (GPQA, MATH-500), while Phi 4 Mini Reasoning is better at 0 benchmarks. DeepSeek R1 Zero significantly outperforms across most benchmarks.
Choose DeepSeek R1 Zero if…
- you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
Choose Phi 4 Mini Reasoning if…
- you want the most recent training data — it shipped Apr 2025
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek R1 Zero outperforms in 2 benchmarks (GPQA, MATH-500), while Phi 4 Mini Reasoning is better at 0 benchmarks.
DeepSeek R1 Zero significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Model Size
Parameter count comparison
DeepSeek R1 Zero has 667.2B more parameters than Phi 4 Mini Reasoning, making it 17557.9% larger.
License
Usage and distribution terms
Both models are licensed under MIT.
Both models share the same licensing terms, providing consistent usage rights.
MIT
Open weights
MIT
Open weights
Release Timeline
When each model was launched
DeepSeek R1 Zero was released on 2025-01-20, while Phi 4 Mini Reasoning was released on 2025-04-30.
Phi 4 Mini Reasoning is 3 months newer than DeepSeek R1 Zero.
Jan 20, 2025
1.4 years ago
Apr 30, 2025
1.2 years ago
3mo newerKnowledge Cutoff
When training data ends
Phi 4 Mini Reasoning has a documented knowledge cutoff of 2025-02-01, while DeepSeek R1 Zero's cutoff date is not specified.
We can confirm Phi 4 Mini Reasoning's training data extends to 2025-02-01, but cannot make a direct comparison without DeepSeek R1 Zero's cutoff date.
—
Feb 2025
Outputs Comparison
Key Takeaways
DeepSeek R1 Zero
View detailsDeepSeek
Phi 4 Mini Reasoning
View detailsMicrosoft
No standout differentiators in the data we have for this pair.
Detailed Comparison
Interactive Arena
Judge for yourself.
Run your own prompts against DeepSeek R1 Zero and Phi 4 Mini Reasoning side-by-side, then vote on the output you prefer.
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FAQ
Common questions about DeepSeek R1 Zero vs Phi 4 Mini Reasoning.