Model Comparison

DeepSeek R1 Zero vs Phi 4 Reasoning Plus

DeepSeek R1 Zero shows notably better performance in the majority of benchmarks.

Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

DeepSeek R1 Zero outperforms in 2 benchmarks (AIME 2024, GPQA), while Phi 4 Reasoning Plus is better at 1 benchmark (LiveCodeBench).

DeepSeek R1 Zero shows notably better performance in the majority of benchmarks.

Sun Mar 29 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Cost data unavailable.

Lowest available price from all providers
Sun Mar 29 2026 • llm-stats.com
DeepSeek
DeepSeek R1 Zero
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
Microsoft
Phi 4 Reasoning Plus
Input tokens$0.00
Output tokens$0.00
Best providerUnknown Organization
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Model Size

Parameter count comparison

657.0B diff

DeepSeek R1 Zero has 657.0B more parameters than Phi 4 Reasoning Plus, making it 4692.9% larger.

DeepSeek
DeepSeek R1 Zero
671.0Bparameters
Microsoft
Phi 4 Reasoning Plus
14.0Bparameters
671.0B
DeepSeek R1 Zero
14.0B
Phi 4 Reasoning Plus

License

Usage and distribution terms

Both models are licensed under MIT.

Both models share the same licensing terms, providing consistent usage rights.

DeepSeek R1 Zero

MIT

Open weights

Phi 4 Reasoning Plus

MIT

Open weights

Release Timeline

When each model was launched

DeepSeek R1 Zero was released on 2025-01-20, while Phi 4 Reasoning Plus was released on 2025-04-30.

Phi 4 Reasoning Plus is 3 months newer than DeepSeek R1 Zero.

DeepSeek R1 Zero

Jan 20, 2025

1.2 years ago

Phi 4 Reasoning Plus

Apr 30, 2025

11 months ago

3mo newer

Knowledge Cutoff

When training data ends

Phi 4 Reasoning Plus has a documented knowledge cutoff of 2025-03-01, while DeepSeek R1 Zero's cutoff date is not specified.

We can confirm Phi 4 Reasoning Plus's training data extends to 2025-03-01, but cannot make a direct comparison without DeepSeek R1 Zero's cutoff date.

DeepSeek R1 Zero

Phi 4 Reasoning Plus

Mar 2025

Outputs Comparison

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Key Takeaways

Higher AIME 2024 score (86.7% vs 81.3%)
Higher GPQA score (73.3% vs 68.9%)
Higher LiveCodeBench score (53.1% vs 50.0%)

Detailed Comparison

AI Model Comparison Table
Feature
DeepSeek
DeepSeek R1 Zero
Microsoft
Phi 4 Reasoning Plus

FAQ

Common questions about DeepSeek R1 Zero vs Phi 4 Reasoning Plus

DeepSeek R1 Zero shows notably better performance in the majority of benchmarks. DeepSeek R1 Zero is made by DeepSeek and Phi 4 Reasoning Plus is made by Microsoft. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.
DeepSeek R1 Zero scores MATH-500: 95.9%, AIME 2024: 86.7%, GPQA: 73.3%, LiveCodeBench: 50.0%. Phi 4 Reasoning Plus scores FlenQA: 97.9%, HumanEval+: 92.3%, IFEval: 84.9%, OmniMath: 81.9%, AIME 2024: 81.3%.
DeepSeek R1 Zero is developed by DeepSeek and Phi 4 Reasoning Plus is developed by Microsoft.