Model Comparison

GPT-4 vs Phi-3.5-MoE-instructWhich is better in 2026?

GPT-4 has a slight edge in benchmark performance.

Verdict: GPT-4 vs Phi-3.5-MoE-instruct — which is better?

GPT-4 (by OpenAI) and Phi-3.5-MoE-instruct (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.

GPT-4 outperforms in 4 benchmarks (HellaSwag, MGSM, MMLU, Winogrande), while Phi-3.5-MoE-instruct is better at 3 benchmarks (GPQA, HumanEval, MATH). GPT-4 has a slight edge in benchmark performance.

Choose GPT-4 if…

  • you want the strongest raw capability — it leads on 4 of 7 shared benchmarks

Choose Phi-3.5-MoE-instruct if…

  • you want the most recent training data — it shipped Aug 2024
  • you need open weights you can self-host or fine-tune
Want to compare interactively?Try the playground

Performance Benchmarks

Comparative analysis across standard metrics

7 benchmarks

GPT-4 outperforms in 4 benchmarks (HellaSwag, MGSM, MMLU, Winogrande), while Phi-3.5-MoE-instruct is better at 3 benchmarks (GPQA, HumanEval, MATH).

GPT-4 has a slight edge in benchmark performance.

Wed Jun 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Context Window

Maximum input and output token capacity

Only GPT-4 specifies input context (32,768 tokens). Only GPT-4 specifies output context (32,768 tokens).

OpenAI
GPT-4
Input32,768 tokens
Output32,768 tokens
Microsoft
Phi-3.5-MoE-instruct
Input- tokens
Output- tokens
Wed Jun 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

GPT-4 supports multimodal inputs, whereas Phi-3.5-MoE-instruct does not.

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

GPT-4

Text
Images
Audio
Video

Phi-3.5-MoE-instruct

Text
Images
Audio
Video

License

Usage and distribution terms

GPT-4 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-4

Proprietary

Closed source

Phi-3.5-MoE-instruct

MIT

Open weights

Release Timeline

When each model was launched

GPT-4 was released on 2023-06-13, while Phi-3.5-MoE-instruct was released on 2024-08-23.

Phi-3.5-MoE-instruct is 15 months newer than GPT-4.

GPT-4

Jun 13, 2023

3.0 years ago

Phi-3.5-MoE-instruct

Aug 23, 2024

1.8 years ago

1.2yr newer

Knowledge Cutoff

When training data ends

GPT-4 has a documented knowledge cutoff of 2022-12-31, while Phi-3.5-MoE-instruct's cutoff date is not specified.

We can confirm GPT-4's training data extends to 2022-12-31, but cannot make a direct comparison without Phi-3.5-MoE-instruct's cutoff date.

GPT-4

Dec 2022

Phi-3.5-MoE-instruct

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Outputs Comparison

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Key Takeaways

OpenAI
Larger context window (32,768 tokens)
Supports multimodal inputs
Higher HellaSwag score (95.3% vs 83.8%)
Higher MGSM score (74.5% vs 58.7%)
Higher MMLU score (86.4% vs 78.9%)
Higher Winogrande score (87.5% vs 81.3%)
Microsoft
Has open weights
Higher GPQA score (36.8% vs 35.7%)
Higher HumanEval score (70.7% vs 67.0%)
Higher MATH score (59.5% vs 42.0%)

Detailed Comparison

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

FAQ

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

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

GPT-4 has a slight edge in benchmark performance. GPT-4 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-4 compare to Phi-3.5-MoE-instruct in benchmarks?

GPT-4 scores AI2 Reasoning Challenge (ARC): 96.3%, HellaSwag: 95.3%, Uniform Bar Exam: 90.0%, SAT Math: 89.0%, LSAT: 88.0%. 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-4 and Phi-3.5-MoE-instruct?

GPT-4 supports 33K 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-4 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-4 and Phi-3.5-MoE-instruct?

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

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