OpenAI：我們下一代模型驅動的多智能體系統已完成對“納維-斯托克斯千禧年獎難題”的證明，該問題關於三維流體運動方程是否會出現奇異性，已困擾數學界約90年。這一證明由一組智能體協作完成，使用的是OpenAI新一代模型，其能力顯著超過GPT-6 Astra。

Expectations the US may impose tariffs on refined copper and ongoing supply tightness pushed copper to fresh records, with LME copper rising for a fourth straight session to $14,617/tonne. Prices are up about 17% year-to-date as constrained mine output meets stronger demand from data centers, renewable-energy equipment and power grids. Anticipation of tariffs has driven a surge of refined copper into the US, draining LME stocks, triggering severe tightness last month and leaving the futures curve deeply backwardated, signalling physical shortage.

日本7月貿易帳 -3999億日元，前值-1352億日元。