According to @ai_darpa, Pliant's CRay robot leverages advanced AI-driven undulating propulsion with flexible fins, enabling it to swim, crawl, jet, or slide for enhanced maneuverability underwater. This technology achieves high energy efficiency, making the CRay ideal for long-duration tasks such as coral reef exploration and mine inspection. Its naturally stealthy design minimizes detection, opening up new business opportunities in subsea infrastructure monitoring, marine research, and defense applications where quiet, adaptable robots are essential. Source: @ai_darpa via Twitter, Dec 26, 2025.