OpenAI’s Altman vows ‘better models’ as China’s DeepSeek disrupts global race
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AI竞赛，OpenAI的奥尔特曼承诺推出“更好的模型”
Executives and investors question valuations and whether vast capital outlays are needed after all
高管和投资者质疑估值，并考虑是否真的需要巨额资本支出。