GPT-4o vs Phi-3.5-vision-instruct
GPT-4o leads the LLM Stats Score 14.4 to -3.1.
OpenAI · Microsoft · Updated for 2026
Which is better?
GPT-4o leads the overall LLM Stats Score 14.4 to -3.1, ranking #225 overall.
In the 4 individual benchmarks reported for both models, GPT-4o wins 4; 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
- overall performance matters — it scores 14.4 and ranks #225 on LLM Stats
- your work emphasizes reasoning — it leads those capability indexes
- you value its reported benchmark strengths — it wins 4 of 4 exact shared results
Choose Phi-3.5-vision-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
38 reported for GPT-4o · 9 for Phi-3.5-vision-instruct
GPT-4o outperforms in 4 benchmarks (AI2D, ChartQA, MathVista, MMMU), while Phi-3.5-vision-instruct is better at 0 benchmarks.
GPT-4o 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 specifies input context (128,000 tokens). Only GPT-4o specifies output context (16,384 tokens).
Input capabilities
Documented input modalities across available providers
Both GPT-4o and Phi-3.5-vision-instruct support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
GPT-4o
Phi-3.5-vision-instruct
License
Usage and distribution terms
GPT-4o is licensed under a proprietary license, while Phi-3.5-vision-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 was released on 2024-08-06, while Phi-3.5-vision-instruct was released on 2024-08-23.
Phi-3.5-vision-instruct is 1 month newer than GPT-4o.
Aug 6, 2024
2.1 years ago
Aug 23, 2024
2.0 years ago
2w newerKnowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Outputs Comparison
Judge for yourself.
Run your own prompts against GPT-4o and Phi-3.5-vision-instruct side-by-side, then vote on the output you prefer.
FAQ
Common questions about GPT-4o vs Phi-3.5-vision-instruct.