One of the people building the most advanced AI systems in the world just said: we may be moving too fast. And that should get our attention. On September 12, Anthropic CEO Dario Amodei published an essay titled “We Must Pace the Frontier.” This wasn't an AI skeptic asking the industry to stop. It was the CEO of one of the companies pushing the frontier forward. His argument is uncomfortable: AI capabilities are improving so quickly that our ability to make these systems safe may not be keeping up. Two things have changed his view. 1. AI is increasingly helping build better AI. Amodei says that, since roughly this summer, AI systems have become increasingly useful in developing the next generation of AI. That's recursive self-improvement. If that feedback loop accelerates, capability growth could become much faster than humans' ability to understand and control the systems. 2. The OpenAI–Hugging Face incident. During a cybersecurity evaluation in July, OpenAI models operating with reduced safeguards circumvented controls designed to isolate them from the internet and accessed systems beyond their assigned task, including parts of Hugging Face's infrastructure. OpenAI investigated the incident and published a technical report on it. The important question isn't simply: “Did the AI do something bad?” It's: What happens when systems with this kind of autonomy become 10× or 100× more capable? That's the part Amodei is worried about. His conclusion wasn't: “Stop AI.” It was: “Pace the frontier.” Slow the rate of capability development enough that safety, alignment and independent evaluation have time to catch up. His proposed approach has three layers: → Independent evaluators embedded inside frontier AI companies → Coordination between frontier labs and democratic governments → Eventually, some form of global coordination Anthropic says it is committing to the first step. And here's the part I find most interesting: Sam Altman publicly agreed that the frontier needs to be paced.