What would be your position on works created with the assistance of generative AI techniques that are not "AI creates the work whole-cloth" but also aren't incidental or unintentional? For instance, I use several tools that use inpainting (functionally a generative AI technique) to remove credits text from clips, or to mask out dialogue bubbles from comic panels. Or, similar to your scene extension example but less obvious, what about techniques that interpolate frames to repair an unwanted jump cut? Or the use of an OpenAI tool to produce autogenerated subtitles? I personally have different feelings, with different levels of complexity, about all those uses, but I think they're substantively different from both pressing the hypothetical "create vid" button on VidGPT and using a spell-check tool with an AI component I can't turn off.
no subject