Comprehensive side-by-side LLM comparison
o3-pro offers 37.9K more tokens in context window than DeepSeek-R1-0528. DeepSeek-R1-0528 is $97.35 cheaper per million tokens. o3-pro supports multimodal inputs. DeepSeek-R1-0528 is available on 3 providers. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-R1-0528 represents a specific release iteration of the DeepSeek-R1 model, developed to incorporate refinements and improvements from ongoing training. Built to provide enhanced reasoning capabilities based on accumulated insights, it continues the evolution of DeepSeek's reasoning-focused architecture.
OpenAI
o3-pro was developed as the flagship reasoning model in the o3 family, designed to deliver maximum reasoning depth and reliability for the most challenging analytical tasks. Built for professionals requiring the highest level of thoughtful problem-solving, it extends reasoning capabilities to handle complex multi-step challenges across diverse domains.
13 days newer

DeepSeek-R1-0528
DeepSeek
2025-05-28

o3-pro
OpenAI
2025-06-10
Cost per million tokens (USD)

DeepSeek-R1-0528

o3-pro
Context window and performance specifications
o3-pro
2024-05-31
Available providers and their performance metrics

DeepSeek-R1-0528
DeepInfra
DeepSeek
Novita

DeepSeek-R1-0528

o3-pro

DeepSeek-R1-0528

o3-pro

o3-pro
OpenAI