要想开启 deep think 模式，需要先把模型切换到 gemini 2.5 pro，然后在输入框下方选中“deep think”。 每天有固定使用额度，但支持更长、更复杂的推理输出。 February 2, 2025introducing deep research:an agent that uses reasoning to synthesize large amounts… Deep seek 02 为什么选择deep seek 1.
PPT Alluvial plain floodplain on which flooding rivers have
