Comprehensive side-by-side LLM comparison
o3-pro offers 37.9K more tokens in context window than DeepSeek-R1. DeepSeek-R1 is $97.26 cheaper per million tokens. o3-pro supports multimodal inputs. DeepSeek-R1 is available on 5 providers. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-R1 was developed as a reasoning-focused language model, designed to combine chain-of-thought reasoning with reinforcement learning techniques. Built to excel at complex problem-solving through trial-and-error learning and deliberate analytical processes, it demonstrates the power of efficient training methods in open-source model development.
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.
4 months newer

DeepSeek-R1
DeepSeek
2025-01-20

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

DeepSeek-R1

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

DeepSeek-R1
DeepInfra
DeepSeek
Fireworks
Together
ZeroEval

DeepSeek-R1

o3-pro

DeepSeek-R1

o3-pro

o3-pro
OpenAI