OpenAI decided not to release an upcoming artificial intelligence model, GPT-6.1 Astra, after determining that it did not adequately meet the company's safety standards, CNBC confirmed on Monday.

The announcement, which landed a day before OpenAI's annual developers conference, comes as the AI industry faces intensifying concerns surrounding the safety of advanced models. Leadership at OpenAI's chief rival, Anthropic, urged AI companies to slow the pace of model development earlier this month — a proposal that OpenAI CEO Sam Altman supported.