Model Comparison

GPT-5 mini vs Phi 4 Mini

GPT-5 mini significantly outperforms across most benchmarks.

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Performance Benchmarks

Comparative analysis across standard metrics

1 benchmarks

GPT-5 mini outperforms in 1 benchmarks (GPQA), while Phi 4 Mini is better at 0 benchmarks.

GPT-5 mini significantly outperforms across most benchmarks.

Tue May 26 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-5 mini specifies input context (400,000 tokens). Only GPT-5 mini specifies output context (128,000 tokens).

OpenAI
GPT-5 mini
Input400,000 tokens
Output128,000 tokens
Microsoft
Phi 4 Mini
Input- tokens
Output- tokens
Tue May 26 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-5 mini supports multimodal inputs, whereas Phi 4 Mini does not.

GPT-5 mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-5 mini

Text
Images
Audio
Video

Phi 4 Mini

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-5 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.

GPT-5 mini

Proprietary

Closed source

Phi 4 Mini

MIT

Open weights

Release Timeline

When each model was launched

GPT-5 mini was released on 2025-08-07, while Phi 4 Mini was released on 2025-02-01.

GPT-5 mini is 6 months newer than Phi 4 Mini.

GPT-5 mini

Aug 7, 2025

9 months ago

6mo newer
Phi 4 Mini

Feb 1, 2025

1.3 years ago

Knowledge Cutoff

When training data ends

GPT-5 mini has a knowledge cutoff of 2024-05-30, 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 GPT-5 mini (2024-05-30).

GPT-5 mini

May 2024

Phi 4 Mini

Jun 2024

1 mo newer

Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (400,000 tokens)
Supports multimodal inputs
Higher GPQA score (82.3% vs 25.2%)
Microsoft
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-5 mini
Microsoft
Phi 4 Mini

FAQ

Common questions about GPT-5 mini vs Phi 4 Mini.

Which is better, GPT-5 mini or Phi 4 Mini?

GPT-5 mini significantly outperforms across most benchmarks. GPT-5 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 GPT-5 mini compare to Phi 4 Mini in benchmarks?

GPT-5 mini scores AIME 2025: 91.1%, HMMT 2025: 87.8%, GPQA: 82.3%, FrontierMath: 22.1%, Humanity's Last Exam: 16.7%. 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 GPT-5 mini and Phi 4 Mini?

GPT-5 mini supports 400K 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 GPT-5 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 GPT-5 mini and Phi 4 Mini?

GPT-5 mini is developed by OpenAI and Phi 4 Mini is developed by Microsoft.