Model Comparison
o1-pro vs o3-pro
Comparing o1-pro and o3-pro across benchmarks, pricing, and capabilities.
Performance Benchmarks
Comparative analysis across standard metrics
o1-pro and o3-pro don't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.
Arena Performance
Human preference votes
Context Window
Maximum input and output token capacity
Only o3-pro specifies input context (200,000 tokens). Only o3-pro specifies output context (100,000 tokens).
Input Capabilities
Supported data types and modalities
Both o1-pro and o3-pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
o1-pro
o3-pro
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
o1-pro was released on 2024-12-17, while o3-pro was released on 2025-06-10.
o3-pro is 6 months newer than o1-pro.
Dec 17, 2024
1.4 years ago
Jun 10, 2025
11 months ago
5mo newerKnowledge Cutoff
When training data ends
o1-pro has a knowledge cutoff of 2023-09-30, while o3-pro has a cutoff of 2024-05-31.
o3-pro has more recent training data (up to 2024-05-31), making it potentially better informed about events through that date compared to o1-pro (2023-09-30).
Sep 2023
May 2024
8 mo newerOutputs Comparison
Key Takeaways
o1-pro
View detailsOpenAI
No standout differentiators in the data we have for this pair.
o3-pro
View detailsOpenAI
Detailed Comparison
FAQ
Common questions about o1-pro vs o3-pro.