Model Comparison

o4-mini vs Phi 4 Mini

o4-mini significantly outperforms across most benchmarks.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

o4-mini outperforms in 1 benchmarks (GPQA), while Phi 4 Mini is better at 0 benchmarks.

o4-mini significantly outperforms across most benchmarks.

Wed Jun 03 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only o4-mini specifies input context (200,000 tokens). Only o4-mini specifies output context (100,000 tokens).

OpenAI
o4-mini
Input200,000 tokens
Output100,000 tokens
Microsoft
Phi 4 Mini
Input- tokens
Output- tokens
Wed Jun 03 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

o4-mini supports multimodal inputs, whereas Phi 4 Mini does not.

o4-mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

o4-mini

Text
Images
Audio
Video

Phi 4 Mini

Text
Images
Audio
Video

License

Usage and distribution terms

o4-mini 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.

o4-mini

Proprietary

Closed source

Phi 4 Mini

MIT

Open weights

Release Timeline

When each model was launched

o4-mini was released on 2025-04-16, while Phi 4 Mini was released on 2025-02-01.

o4-mini is 2 months newer than Phi 4 Mini.

o4-mini

Apr 16, 2025

1.1 years ago

2mo newer
Phi 4 Mini

Feb 1, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

o4-mini has a knowledge cutoff of 2024-05-31, 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 o4-mini (2024-05-31).

o4-mini

May 2024

Phi 4 Mini

Jun 2024

1 mo newer

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (200,000 tokens)
Supports multimodal inputs
Higher GPQA score (81.4% vs 25.2%)
Microsoft
Has open weights
OpenAIo4-mini
MicrosoftPhi 4 Mini
Compare in Playground

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
o4-mini
Microsoft
Phi 4 Mini

FAQ

Common questions about o4-mini vs Phi 4 Mini.

Which is better, o4-mini or Phi 4 Mini?

o4-mini significantly outperforms across most benchmarks. o4-mini 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 o4-mini compare to Phi 4 Mini in benchmarks?

o4-mini scores AIME 2024: 93.4%, AIME 2025: 92.7%, MathVista: 84.3%, MMMU: 81.6%, GPQA: 81.4%. Phi 4 Mini scores GSM8k: 88.6%, ARC-C: 83.7%, BoolQ: 81.2%, OpenBookQA: 79.2%, PIQA: 77.6%.

What are the context window sizes for o4-mini and Phi 4 Mini?

o4-mini supports 200K tokens and Phi 4 Mini supports an unknown number of tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between o4-mini 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 o4-mini and Phi 4 Mini?

o4-mini is developed by OpenAI and Phi 4 Mini is developed by Microsoft.