Comprehensive side-by-side LLM comparison
o3 Pro offers 164.0K more tokens in context window than DeepSeek-V3.2-Speciale. DeepSeek-V3.2-Speciale is $98.63 cheaper per million tokens. o3 Pro supports multimodal inputs. Both models have their strengths depending on your specific coding needs.
DeepSeek
DeepSeek-V3.2-Speciale is a high-compute variant of DeepSeek-V3.2 with 685 billion total parameters, made available for a limited period in December 2025. It was released without tool-calling support but demonstrated exceptional reasoning performance, achieving gold-medal results in the 2025 IMO and IOI competitions. DeepSeek-V3.2-Speciale targets research and benchmarking use cases requiring maximum reasoning capability under an MIT license.
OpenAI
OpenAI o3-pro, released by OpenAI in June 2025, is an extended reasoning model from the o3 family that applies more compute per response to deliver deeper, more thorough answers on complex problems. It features a 200K token context window, 100K maximum output tokens, and vision capabilities. o3-pro targets research-grade reasoning tasks, extended coding sessions, and applications where accuracy on difficult problems justifies higher inference cost and latency.
5 months newer

o3 Pro
OpenAI
2025-06-10

DeepSeek-V3.2-Speciale
DeepSeek
2025-12
Cost per million tokens (USD)
DeepSeek-V3.2-Speciale
o3 Pro
Context window and performance specifications
Available providers and their performance metrics
DeepSeek-V3.2-Speciale
DeepSeek
o3 Pro
DeepSeek-V3.2-Speciale
o3 Pro
DeepSeek-V3.2-Speciale
o3 Pro
OpenAI