OpenAI has paused some frontier RL training, according to a post from CEO Sam Altman, who claims that model progress has become “extremely rapid” and that the company’s safety and alignment work must catch up with a “new level of capabilities.”
Altman states that the pause is intended to give OpenAI time to meet appropriate alignment, security and monitoring standards. He adds that the company had always intended to intervene if model capabilities began outpacing its safety work.
“We care very deeply about AI safety,” Altman wrote.
He also argues that the wider AI sector will need shared safety standards, while OpenAI will act unilaterally in the meantime. According to Altman, confidence in safety will increasingly determine the pace of AI progress. He remains “optimistic” about OpenAI’s alignment work and reiterates the company’s commitment to making frontier capabilities widely available.
The announcement does not describe which training run was paused, what capabilities prompted the decision or how long the pause will last. Altman later clarified that OpenAI still expects to release new models soon, adding that the pause affects “further-out releases.”
Altman’s announcement makes a limited claim: OpenAI has paused some frontier RL training while it works toward its stated safety, security and monitoring standards. The post provides no technical details that would independently establish the scale of the capability jump or explain the specific risks under review.
Source: Sam Altman on X