Comprehensive side-by-side LLM comparison
o3 mini offers 164.0K more tokens in context window than DeepSeek-V3.2 Thinking. DeepSeek-V3.2 Thinking is $2.76 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-V3.2-Exp (DeepSeek-V3.2 Thinking), released by DeepSeek in September 2025, is the experimental preview release of the DeepSeek-V3.2 model featuring 685 billion total parameters and integrated thinking capabilities. It introduced the architecture and training approaches that became the foundation of the final V3.2 release, including thinking in tool-use and hybrid reasoning modes.
OpenAI
OpenAI o3 mini, released by OpenAI in January 2025, is a compact reasoning model from the o3 family designed for efficient, cost-effective STEM problem-solving. It features a 200K token context window and adjustable chain-of-thought effort settings, allowing developers to trade reasoning depth for speed. o3 mini targets science, mathematics, and coding applications where lower inference cost and faster response times are a priority.
8 months newer

o3 mini
OpenAI
2025-01-31

DeepSeek-V3.2 Thinking
DeepSeek
2025-09-29
Cost per million tokens (USD)
DeepSeek-V3.2 Thinking
o3 mini
Context window and performance specifications
Available providers and their performance metrics
DeepSeek-V3.2 Thinking
DeepSeek
o3 mini
DeepSeek-V3.2 Thinking
o3 mini
DeepSeek-V3.2 Thinking
o3 mini
OpenAI