Comprehensive side-by-side LLM comparison
o1 mini offers 57.5K 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 o1 mini, released by OpenAI in September 2024, is a lightweight reasoning model from the o1 family optimized for efficient STEM problem-solving at lower cost and latency. It features a 128K token context window and applies chain-of-thought reasoning specifically tuned for mathematics, science, and coding tasks. o1 mini targets use cases where rapid, cost-efficient reasoning is preferred over the broader capabilities of the full o1 model.
1 year newer

o1 mini
OpenAI
2024-09-12

DeepSeek-V3.2 Thinking
DeepSeek
2025-09-29
Cost per million tokens (USD)
DeepSeek-V3.2 Thinking
o1 mini
Context window and performance specifications
Available providers and their performance metrics
DeepSeek-V3.2 Thinking
DeepSeek
o1 mini
DeepSeek-V3.2 Thinking
o1 mini
DeepSeek-V3.2 Thinking
o1 mini
OpenAI