Your diffusion model ignores the precise layout you asked for. How do you make image generation controllable?
Text prompts are a one-dimensional control surface, and cranking the guidance scale until the model obeys just burns your image. The candidates who pass name the right conditioning mechanism for the right kind of control.
Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.
Text prompts are a one-dimensional control surface, and cranking the guidance scale until the model obeys just burns your image. The candidates who pass name the right conditioning mechanism for the right kind of control.
Lead with where the obvious approach breaks, because that is the judgment they are screening for — most candidates jump straight to the happy path and lose the room.
Then walk the failure back through the pipeline in order, naming the one metric the customer's exec sponsor actually cares about before you propose the fix.
