Pinterest在最新财报电话会上表示，在Pinterest Assistant等实际业务中，公司使用开源模型并结合自身独有数据进行后训练后，部分场景的表现优于第三方闭源模型，更关键的是，每笔交易成本不到可比闭源专有模型的8%。 这一案例说明，企业AI成本下降不一定依赖底层GPU或算力价格下跌，而可能来自模型选择和定制方式的变化。企业可以使用成本较低的开源模型，再利用自身数据进行post-training，而不必让所有任务都调用价格更高的闭源前沿模型。这与近期企业通过智能路由降低Token支出的趋势一致：AI模型越来越多，企业真正需要优化的是「什么任务值得用什么模型」。如果这一模式扩大，AI应用量可以继续增长，而单位推理成本未必同步上升。

China’s Urban Renewal 15th Five-Year Plan sets 23 priority tasks and expects 15 trillion yuan of investment over the plan period. The central budget has earmarked 97 billion yuan for urban renewal projects this year and 160 billion yuan of ultra‑long‑term special treasury bonds to support underground utility networks. Authorities say private capital will target redevelopments of neighborhoods, factories and industrial parks that offer stable returns; financing channels cited include bank loans, REITs and asset securitization. Household co‑funding is expected for projects such as adding elevators to old walk‑ups and on‑site reconstruction of hazardous housing under a “who benefits, who pays” rule.

A Houthi spokesperson said Yemeni armed forces attacked Saudi military assembly points, weapons depots and command headquarters in Mecca Province and Marib Province.