OpenAI Endorses as Anthropic Stands Alone

Posts from Beff Jezos and Shyamal Anadkat report that OpenAI has joined other AI companies in endorsing a document. This leaves Anthropic as the sole major AI lab absent from the signatories. Observers note the development highlights strategic positioning among leading organizations. Beff Jezos stated everyone except Anthropic has endorsed at this point. Retweets and summaries confirm the pattern of broad endorsement excluding only Anthropic among prominent technology and AI labs.