GPT-4o mini vs Phi-3.5-MoE-instruct
GPT-4o mini and Phi-3.5-MoE-instruct are closely matched at 3.8 and 1.9 on the LLM Stats Score.
OpenAI · Microsoft · Updated for 2026
Which is better?
GPT-4o mini and Phi-3.5-MoE-instruct are closely matched on the overall LLM Stats Score at 3.8 and 1.9.
In the 5 individual benchmarks reported for both models, GPT-4o mini wins 5; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose GPT-4o mini
- you value its reported benchmark strengths — it wins 5 of 5 exact shared results
Choose Phi-3.5-MoE-instruct
- you want the most recent training data — it shipped Aug 2024
- you need open weights you can self-host or fine-tune
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
9 reported for GPT-4o mini · 31 for Phi-3.5-MoE-instruct
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.
Human preference
Blind head-to-head votes and playground 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).
Input capabilities
Documented input modalities across available providers
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
Phi-3.5-MoE-instruct
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.
Proprietary
Closed source
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.
Jul 18, 2024
2.1 years ago
Aug 23, 2024
2.0 years ago
1mo newerKnowledge 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.
Oct 2023
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Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4o mini and Phi-3.5-MoE-instruct side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4o mini vs Phi-3.5-MoE-instruct.