{"choices":[{"delta":{"content":"","reasoning_content":"更","role":"assistant"},"index":0}],"created":1741668925,"id":"021741668925429745f35aecd61d8759727392a4826173c6db921","model":"deepseek-reasoner","service_tier":"default","object":"chat.completion.chunk","usage":null}reasoning_content is the field content for thinking information content is the field content for reply information reasoning gemini models will return thinking content in this fieldReverse-engineered models will wrap thinking models with <think> thinking content </think>