OpenAI and other leading AI companies may be close to announcing a pact to slow AI development and collectively address the rapidly increasing safety risks as the technology becomes more powerful.

In an exclusive interview with Fortune on Friday, OpenAI CEO Sam Altman hinted at a soon-to-be-announced collaboration.

“I think that will happen,” he said, when asked by Fortune Editor-in-Chief Alyson Shontell why he doesn’t get in a room with Anthropic CEO Dario Amodei, SpaceX CEO Elon Musk, and Demis Hassabis, the cofounder and chairman of Google’s AI arm, Google DeepMind, and come up with a plan to address the safety issues.

“I’m not going to pre-announce private discussions that I think should be at some point shared as a group,” Altman added. “But yeah, I think I think that will happen.”

Meanwhile, Amodei announced Saturday that Anthropic is committing to a new safety measure—giving independent evaluators permanent, employee-level access inside the company—as part of a broader plan he says is needed to slow the pace of AI development. “We must slow the pace at which we improve the capabilities of AI models,” Amodei said. He said doing so would require coordination across the U.S. AI industry, as well as globally through some kind of international pact.