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A reasoning trace refers to the intermediate reasoning text that a model with chain-of-thought capability outputs before giving its final action, and its basic assumption is that the reasoning text is causally consistent with the subsequent action and can be used to anticipate the model's intent.
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10/26/2026
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VerifiedTool calling allows models to dynamically invoke external functions during inference and incorporate execution results into the context of subsequent reasoning, forming a closed loop of perception, decision-making, and execution.79% similarVerified推理能力基于思维链（Chain-of-Thought, CoT）技术，模型在给出最终答案前生成内部逐步推导过程78% similarUnverifiedA reasoning stream refers to the model's output of its thinking process before giving a final answer, which is returned incrementally (as deltas) during streaming and is typically interleaved with tool calls.78% similarUnverifiedReasoning models typically return a separate reasoning or thinking field in the response, distinct from the final answer field.77% similarVerifiedThe o-series models combine chain-of-thought reasoning with reinforcement learning, with the model generating internal thinking steps before producing an answer.75% similar
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