Any images that are produced by giving a text prompt to current generative AI models, such as Midjourney or Stable Diffusion, cannot be copyrighted in the US. That's according to the US Copyright Office (USCO), which has equated such prompts to a buyer giving directions to a commissioned artist. "They identify what the prompter wishes to have depicted, but the machine determines how those instructions are implemented in its output," the USCO wrote in new guidance it published to the Federal Register.