krita-ai-diffusion

The reason that Adobe can do AI gen "out of the box" is because you're paying for it (Firefly). If GIMP were to implement it, they'd probably have to go the same route as Krita and either spin up or call out to a running instance of Automatic1111 or ComfyUI. https://github.com/Acly/krita-ai-diffusion MCP would be cool, but it would be significantly harder than Blender which can represent the "world" as a formal set of expressions. MCP for GIMP would be dealing with layers of rasterized data which would mean integrating with YOLO/LLava/etc in order to make sense of it. It would be neat, but it'd be a daunting integration and potentially VERY VERY slow.

For your first point, I'd recommend using Krita (https://krita.org/) and its generative AI plugin: https://github.com/Acly/krita-ai-diffusion / https://www.interstice.cloud/

Yes, these are largely prototyping tools. I'm not fond of Invoke's "professional" pitch in particular, this workflow would feel alien for any actual creative. However AI CGI is more like 3D CGI in the sense that you have to get technical and understand what you're doing. There are a bit more competent tools in this busted-tool world if you want to get things done, e.g.: https://github.com/Acly/krita-ai-diffusion . It still a nerdy tool and has way more friction than necessary, with all this python hell (it uses Comfy as a backend, although it's somewhat automated). It's far from being as easy as Adobe's Firefly.