Extended Chain Of Thought Reasoning With Separated Thinking Traces

via “extended chain-of-thought reasoning with visible traces”

Open-source reasoning model matching OpenAI o1.

Unique: Trained with RL to produce explicit, human-readable reasoning traces as part of standard output, rather than using prompting tricks or post-hoc explanation generation. The reasoning is integral to the model's training objective, not bolted on.

vs others: Unlike OpenAI o1 which hides reasoning in a private 'thinking' block, DeepSeek R1 exposes reasoning traces by default, enabling full auditability and educational use at the cost of longer output.