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DeepSeek-V3.2-Speciale

Extended reasoning variant (December 1, 2025); extreme thinking mode; 96% AIME score; gold IMO 2025; outperforms GPT-5-High

Deepseek
Also released December 1, 2025, DeepSeek-V3.2-Speciale represents an extreme extended-thinking variant optimized exclusively for challenging reasoning tasks. Trained only on reasoning data during the RL phase (similar to DeepSeek-R1), Speciale features reduced length penalties allowing substantially longer reasoning outputs. The model achieved gold-medal performance on the International Mathematical Olympiad 2025, scored 96% on AIME competition benchmarks, and outperforms GPT-5-High and Google Gemini-3.0-Pro on multiple reasoning evaluations. Speciale demonstrates that extended thinking combined with advanced architectures can push reasoning capabilities to competitive advantage, though at increased inference cost due to longer outputs.

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