Anthropic, an AI company, is making progress towards recursive self-improvement, where AI systems can design and develop their own successors. The company's AI system, Claude, is already accelerating the development of AI systems, with engineers shipping 8x as much code per quarter as they did in 2021-2025. The article discusses the implications of this trend, including the potential benefits and risks of AI systems becoming more capable. Anthropic is also exploring ways to slow down or pause the development of frontier AI to allow societal structures and alignment research to keep up.