Comprehensive side-by-side LLM comparison
o3-mini is $94.50 cheaper per million tokens. o3-pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
OpenAI
o3-mini was created as an efficient variant of the o3 reasoning model, designed to provide advanced thinking capabilities with reduced computational requirements. Built to make next-generation reasoning accessible to a broader range of applications, it balances analytical depth with practical speed and cost considerations.
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

o3-mini
OpenAI
2025-01-30

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

o3-mini

o3-pro
Context window and performance specifications
o3-mini
2023-09-30
o3-pro
2024-05-31
Available providers and their performance metrics

o3-mini
Azure
OpenAI


o3-mini

o3-pro

o3-mini

o3-pro
o3-pro
OpenAI