Latest open artifacts (#25): DeepSeek V4.1 Flash 1017, American-made models, and new regulatory controls in the US & China

The US and China are advancing regulatory measures on open-weight AI models, with China proposing pre-approval for frontier AI exports and the US restricting DeepSeek from federal contracts. DeepSeek also open-sourced its efficient inference stack, DeepInfer, potentially impacting AI model deployment costs.