DeepSeek-V3.1: A Hybrid AI Model with Enhanced Reasoning

This is a review of DeepSeek's latest release announced on Hugging Face on August 21, 2025. The source introduces DeepSeek-V3.1, a hybrid large language model that supports both "thinking" and "non-thinking" operational modes, distinguishable through different chat templates. This updated model offers smarter tool calling capabilities and improved thinking efficiency, providing faster responses with comparable answer quality to previous versions. Built upon a two-phase long context extension, DeepSeek-V3.1 has expanded its training dataset significantly to enhance its understanding and generation of longer documents. The document also provides detailed chat templates for various interaction types, including multi-turn conversations and tool-calling scenarios for agents, alongside evaluation metrics demonstrating its superior performance in categories like general knowledge, code, and mathematics. Finally, it outlines usage examples, local deployment instructions, and licensing information for the model.Source:https://huggingface.co/deepseek-ai/DeepSeek-V3.1

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