A股三大指数午间收盘集体下跌，其中沪指跌0.07%，深成指跌0.41%，创业板指跌0.54%。航天军工、教育、餐饮旅游板块领跌，而重型机械、煤炭、生物科技板块涨幅居前。零跑汽车计划在2027年推出一个定价在30万元以上的高端新品牌，并采用独立的销售网络。此外，有消息称OpenAI可能在2028年量产一款手机。 AI
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RANK_REASON The cluster contains a mix of unrelated financial market data, a rumor about Leapmotor's future branding, and a speculative mention of an OpenAI phone, none of which constitute a verifiable or significant AI-related event.