The CEO of Anthropic said Saturday the artificial-intelligence industry should slow its fast-moving development to give safety measures time to catch up. Without such a slowdown, Dario Amodei warned that within six to 12 months AI could be capable of leading a swarm of agents that could take over the entire internet.

The warning comes as worries about AI grow inside and outside the industry and reports continue to emerge about increasingly powerful systems that solve problems beyond human capacity but could also go rogue and carry out other, more harmful tasks. The worries have grown so loud that the CEO of OpenAI, the company behind ChatGPT, said in an interview with Fortune that his company would wait until next year to start selling its stock to investors on Wall Street as it focuses on safety.

Amodei is one of the leading voices in AI, and he offered a plan in a post on his website to increase checks on the industry. He said Anthropic is already undertaking one part of it on its own, while the others would require coordination across the broad industry and with governments around the world, including authoritarian ones.

“I believe that if slowing down bought us even an extra year or two before models reach critical levels of capability, and we used that time to advance alignment, we could greatly reduce the risk that something goes seriously wrong,” Amodei said.