Model Comparison
DeepSeek-R1-0528 vs o1-proWhich is better in 2026?
DeepSeek-R1-0528 significantly outperforms across most benchmarks.
Verdict: DeepSeek-R1-0528 vs o1-pro — which is better?
DeepSeek-R1-0528 (by DeepSeek) and o1-pro (by OpenAI) 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.
DeepSeek-R1-0528 outperforms in 2 benchmarks (AIME 2024, GPQA), while o1-pro is better at 0 benchmarks. DeepSeek-R1-0528 significantly outperforms across most benchmarks.
Choose DeepSeek-R1-0528 if…
- you want the strongest raw capability — it leads on 2 of 2 shared benchmarks
- you want the most recent training data — it shipped May 2025
- you need open weights you can self-host or fine-tune
Choose o1-pro if…
- you are already invested in the OpenAI ecosystem
Performance Benchmarks
Comparative analysis across standard metrics
DeepSeek-R1-0528 outperforms in 2 benchmarks (AIME 2024, GPQA), while o1-pro is better at 0 benchmarks.
DeepSeek-R1-0528 significantly outperforms across most benchmarks.
Arena Performance
Human preference votes
Context Window
Maximum input and output token capacity
Only DeepSeek-R1-0528 specifies input context (131,072 tokens). Only DeepSeek-R1-0528 specifies output context (131,072 tokens).
Input Capabilities
Supported data types and modalities
o1-pro supports multimodal inputs, whereas DeepSeek-R1-0528 does not.
o1-pro can handle both text and other forms of data like images, making it suitable for multimodal applications.
DeepSeek-R1-0528
o1-pro
License
Usage and distribution terms
DeepSeek-R1-0528 is licensed under MIT, while o1-pro uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
MIT
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
DeepSeek-R1-0528 was released on 2025-05-28, while o1-pro was released on 2024-12-17.
DeepSeek-R1-0528 is 5 months newer than o1-pro.
May 28, 2025
1.0 years ago
5mo newerDec 17, 2024
1.5 years ago
Knowledge Cutoff
When training data ends
o1-pro has a documented knowledge cutoff of 2023-09-30, while DeepSeek-R1-0528's cutoff date is not specified.
We can confirm o1-pro's training data extends to 2023-09-30, but cannot make a direct comparison without DeepSeek-R1-0528's cutoff date.
—
Sep 2023
Outputs Comparison
Key Takeaways
DeepSeek-R1-0528
View detailsDeepSeek
o1-pro
View detailsOpenAI
Detailed Comparison
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FAQ
Common questions about DeepSeek-R1-0528 vs o1-pro.