Model Comparison

o1-pro vs Phi 4 MiniWhich is better in 2026?

o1-pro significantly outperforms across most benchmarks.

Verdict: o1-pro vs Phi 4 Mini — which is better?

o1-pro (by OpenAI) and Phi 4 Mini (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.

o1-pro outperforms in 1 benchmarks (GPQA), while Phi 4 Mini is better at 0 benchmarks. o1-pro significantly outperforms across most benchmarks.

Choose o1-pro if…

  • you want the strongest raw capability — it leads on 1 of 1 shared benchmarks

Choose Phi 4 Mini if…

  • you want the most recent training data — it shipped Feb 2025
  • you need open weights you can self-host or fine-tune

Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

o1-pro outperforms in 1 benchmarks (GPQA), while Phi 4 Mini is better at 0 benchmarks.

o1-pro significantly outperforms across most benchmarks.

Sun Jul 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Input Capabilities

Supported data types and modalities

o1-pro supports multimodal inputs, whereas Phi 4 Mini does not.

o1-pro can handle both text and other forms of data like images, making it suitable for multimodal applications.

o1-pro

Text
Images
Audio
Video

Phi 4 Mini

Text
Images
Audio
Video

License

Usage and distribution terms

o1-pro is licensed under a proprietary license, while Phi 4 Mini uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

o1-pro

Proprietary

Closed source

Phi 4 Mini

MIT

Open weights

Release Timeline

When each model was launched

o1-pro was released on 2024-12-17, while Phi 4 Mini was released on 2025-02-01.

Phi 4 Mini is 2 months newer than o1-pro.

o1-pro

Dec 17, 2024

1.6 years ago

Phi 4 Mini

Feb 1, 2025

1.5 years ago

1mo newer

Knowledge Cutoff

When training data ends

o1-pro has a knowledge cutoff of 2023-09-30, while Phi 4 Mini has a cutoff of 2024-06-01.

Phi 4 Mini has more recent training data (up to 2024-06-01), making it potentially better informed about events through that date compared to o1-pro (2023-09-30).

o1-pro

Sep 2023

Phi 4 Mini

Jun 2024

9 mo newer

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Key Takeaways

OpenAI
Supports multimodal inputs
Higher GPQA score (79.0% vs 25.2%)
Microsoft
Has open weights

Detailed Comparison

Interactive Arena

Judge for yourself.

Run your own prompts against o1-pro and Phi 4 Mini side-by-side, then vote on the output you prefer.

o1-pro
✓ Preferred
Phi 4 Mini
Open in Playground
AI Model Comparison Table
Feature
OpenAI
o1-pro
Microsoft
Phi 4 Mini

FAQ

Common questions about o1-pro vs Phi 4 Mini.

Which is better, o1-pro or Phi 4 Mini?

o1-pro significantly outperforms across most benchmarks. o1-pro is made by OpenAI and Phi 4 Mini is made by Microsoft. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does o1-pro compare to Phi 4 Mini in benchmarks?

o1-pro scores AIME 2024: 86.0%, GPQA: 79.0%. Phi 4 Mini scores GSM8k: 88.6%, ARC-C: 83.7%, BoolQ: 81.2%, OpenBookQA: 79.2%, PIQA: 77.6%.

What are the main differences between o1-pro and Phi 4 Mini?

Key differences include multimodal support (yes vs no), licensing (Proprietary vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes o1-pro and Phi 4 Mini?

o1-pro is developed by OpenAI and Phi 4 Mini is developed by Microsoft.

Related comparisons