If you have an artist, can't you just talk to her about what you want and then she makes the model and all the rest of it? I don't really understand what you gain if you pay for LLM, make model with it and then give it to artist.

If you knew how an art pipeline worked, you would. An artist is usually one in an array of artists that completes a model. The pipeline starts with concept artists (easily AI now), turnaround (AI is hit or miss here), modeling (this phase), texturing (could be another artist), baking (normally a texture artists job but depending on material complexity and whether it’s for film, technical artist), rendering if needed.

Then you have sub specialties. Rigging, animation, texturing, environments, props, characters, effects.

It’s a fascinating process.