Generative Vision Interview Questions, issue 1, Jun 8, 2026
The Noise Schedule Trap
Senior AI Engineer interview at Midjourney, and the interviewer asks:
“Your diffusion model generates photorealistic textures, but the global shapes are completely mangled ( for example three-headed teddy bears ). The architecture is flawless. What phase of your forward noise schedule (𝛽_𝑡) is failing, and why?”
When your diffusion model generates perfect textures but three-headed teddy bears, architecture isn't the problem, it's a hidden SNR starvation quietly destroying your structural gradients.
The full answer, with the mechanism and the arithmetic, is for paid subscribers on Substack.