Following Anthropic, OpenAI files confidentially for IPO
中文摘要
OpenAI秘密申请IPO，紧随竞争对手Anthropic之后，加剧了两家AI公司的竞争。
English Summary
OpenAI has confidentially filed for an IPO shortly after its rival Anthropic, intensifying the competition between the two AI firms.
原文节选
The filing comes a little more than a week after its main rival, Anthropic, also filed to go public, ramping up the race between the two AI firms.