Replit has introduced Ghostwriter, an AI-powered feature integrated into its IDE that aims to transform how coding is done by offering real-time code completion, generation, transformation, and in-editor code search. Building on the success of Replit's Multiplayer Mode, Ghostwriter acts as an AI pair programmer, leveraging advanced machine learning models to provide code suggestions and explanations, making coding more efficient and accessible, particularly on mobile devices. The development of Ghostwriter involves optimizing open-source large language models to reduce latency and enhance user experience, incorporating strategies such as knowledge distillation and heuristic filtering. This innovation is poised to significantly alter the landscape of software development by making programming more intuitive and accessible, aligning with Replit's vision of empowering the next generation of software creators. Ghostwriter is currently in closed beta, with plans to expand its availability and affordability, much like Replit's Multiplayer Mode.