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GPT-4o mini vs Phi 4 Mini

GPT-4o mini significantly outperforms across most benchmarks.

OpenAI · Microsoft · Updated for 2026

Which is better?

GPT-4o mini outperforms in 4 benchmarks (GPQA, MATH, MGSM, MMLU), while Phi 4 Mini is better at 0 benchmarks. GPT-4o mini significantly outperforms across most benchmarks.

Based on current benchmark, pricing, and model metadata for 2026.

Choose GPT-4o mini

  • you want the strongest raw capability — it leads on 4 of 4 shared benchmarks

Choose Phi 4 Mini

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

At a glance

The differences that matter most.

Benchmark wins
4 of 4
0 of 4
Input price
$0.15 / M
— / M
Output price
$0.60 / M
— / M
Context window
128,000
Released
Jul 2024
Feb 2025
License
Proprietary
MIT

Performance Benchmarks

Comparative analysis across standard metrics

4 benchmarks

GPT-4o mini outperforms in 4 benchmarks (GPQA, MATH, MGSM, MMLU), while Phi 4 Mini is better at 0 benchmarks.

GPT-4o mini significantly outperforms across most benchmarks.

Tue Aug 25 2026 • llm-stats.com

Arena Performance

Playground indexes and blind preference scores

Context Window

Maximum input and output token capacity

Only GPT-4o mini specifies input context (128,000 tokens). Only GPT-4o mini specifies output context (16,384 tokens).

OpenAI
GPT-4o mini
Input128,000 tokens
Output16,384 tokens
Microsoft
Phi 4 Mini
Input- tokens
Output- tokens
Tue Aug 25 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

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

GPT-4o mini can handle both text and other forms of data like images, making it suitable for multimodal applications.

GPT-4o mini

Text
Images
Audio
Video

Phi 4 Mini

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4o 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-4o mini

Proprietary

Closed source

Phi 4 Mini

MIT

Open weights

Release Timeline

When each model was launched

GPT-4o mini was released on 2024-07-18, while Phi 4 Mini was released on 2025-02-01.

Phi 4 Mini is 7 months newer than GPT-4o mini.

GPT-4o mini

Jul 18, 2024

2.1 years ago

Phi 4 Mini

Feb 1, 2025

1.6 years ago

6mo newer

Knowledge Cutoff

When training data ends

GPT-4o mini has a knowledge cutoff of 2023-10-01, 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-4o mini (2023-10-01).

GPT-4o mini

Oct 2023

Phi 4 Mini

Jun 2024

8 mo newer

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion

Judge for yourself.

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

GPT-4o mini
✓ Preferred
Phi 4 Mini
Open in Playground

FAQ

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

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

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

GPT-4o mini scores HumanEval: 87.2%, MGSM: 87.0%, MMLU: 82.0%, DROP: 79.7%, MATH: 70.2%. 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-4o mini and Phi 4 Mini?

GPT-4o mini supports 128K 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-4o 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-4o mini and Phi 4 Mini?

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