在岸人民币兑美元9月4日16:30收盘报6.7108，较上一交易日上涨73点。

Ukrainian President Zelenskiy said US envoys sent by President Trump will hold separate talks in Moscow and Kyiv, with the Kyiv meeting expected within days, as Washington seeks to revive stalled Russia‑Ukraine negotiations. Zelenskiy did not name the envoys but said he has spoken with White House envoys Steve Witkoff and Jared Kushner, who are coordinating visit dates; he said US‑led peace talks have been largely stalled since February. Zelenskiy added Ukraine has made some progress using remote drones against Russian energy infrastructure, but shortages of air‑defence interceptors leave Kyiv and surrounding areas exposed to Russian missile strikes.

Purple Ventures founding partner Jakub Nytra said AI company valuations are becoming stretched and investors should prioritise firms showing real productivity gains. He expects capital allocation to become more selective over the next 6-12 months as investors separate technologies that create economic value from superficial AI labeling. Concerns about a bubble persist as sustained corporate capex and very high growth figures raise questions about durability. Nytra warned not every company adding AI to its pitch deserves an outsized valuation; winners will be those using AI to solve costly, highly complex problems.