Model Comparison

GPT-4o mini vs Phi-3.5-MoE-instruct

GPT-4o mini significantly outperforms across most benchmarks.

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Performance Benchmarks

Comparative analysis across standard metrics

5 benchmarks

GPT-4o mini outperforms in 5 benchmarks (GPQA, HumanEval, MATH, MGSM, MMLU), while Phi-3.5-MoE-instruct is better at 0 benchmarks.

GPT-4o mini significantly outperforms across most benchmarks.

Sun May 03 2026 • llm-stats.com

Arena Performance

Human preference votes

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-3.5-MoE-instruct
Input- tokens
Output- tokens
Sun May 03 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4o mini supports multimodal inputs, whereas Phi-3.5-MoE-instruct 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-3.5-MoE-instruct

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4o mini is licensed under a proprietary license, while Phi-3.5-MoE-instruct 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-3.5-MoE-instruct

MIT

Open weights

Release Timeline

When each model was launched

GPT-4o mini was released on 2024-07-18, while Phi-3.5-MoE-instruct was released on 2024-08-23.

Phi-3.5-MoE-instruct is 1 month newer than GPT-4o mini.

GPT-4o mini

Jul 18, 2024

1.8 years ago

Phi-3.5-MoE-instruct

Aug 23, 2024

1.7 years ago

1mo newer

Knowledge Cutoff

When training data ends

GPT-4o mini has a documented knowledge cutoff of 2023-10-01, while Phi-3.5-MoE-instruct's cutoff date is not specified.

We can confirm GPT-4o mini's training data extends to 2023-10-01, but cannot make a direct comparison without Phi-3.5-MoE-instruct's cutoff date.

GPT-4o mini

Oct 2023

Phi-3.5-MoE-instruct

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Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (128,000 tokens)
Supports multimodal inputs
Higher GPQA score (40.2% vs 36.8%)
Higher HumanEval score (87.2% vs 70.7%)
Higher MATH score (70.2% vs 59.5%)
Higher MGSM score (87.0% vs 58.7%)
Higher MMLU score (82.0% vs 78.9%)
Microsoft
Has open weights

Detailed Comparison

AI Model Comparison Table
Feature
OpenAI
GPT-4o mini
Microsoft
Phi-3.5-MoE-instruct

FAQ

Common questions about GPT-4o mini vs Phi-3.5-MoE-instruct.

Which is better, GPT-4o mini or Phi-3.5-MoE-instruct?

GPT-4o mini significantly outperforms across most benchmarks. GPT-4o mini is made by OpenAI and Phi-3.5-MoE-instruct 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-3.5-MoE-instruct in benchmarks?

GPT-4o mini scores HumanEval: 87.2%, MGSM: 87.0%, MMLU: 82.0%, DROP: 79.7%, MATH: 70.2%. Phi-3.5-MoE-instruct scores ARC-C: 91.0%, OpenBookQA: 89.6%, GSM8k: 88.7%, PIQA: 88.6%, RULER: 87.1%.

What are the context window sizes for GPT-4o mini and Phi-3.5-MoE-instruct?

GPT-4o mini supports 128K tokens and Phi-3.5-MoE-instruct 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-3.5-MoE-instruct?

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-3.5-MoE-instruct?

GPT-4o mini is developed by OpenAI and Phi-3.5-MoE-instruct is developed by Microsoft.