Lovable definitely seems to have a bit of a secret sauce.
I've been trying to figure out how they do it. First, Claude3.7 is probably their backend model. Gemini 2.5 Pro is definitely getting there but I'm pretty sure Claude is still king for this kind of work. Second, if you break up the design and then implementation, you get significantly better responses. Finally, you have throw in a bit of what I'm calling stable-diffusion-prompt-isms where you almost excessively drop references to known brands or design philosophies to trigger those 'latent' memories and steer away from the more-basic stuff that seems to otherwise surface.
I've been trying to figure out how they do it. First, Claude3.7 is probably their backend model. Gemini 2.5 Pro is definitely getting there but I'm pretty sure Claude is still king for this kind of work. Second, if you break up the design and then implementation, you get significantly better responses. Finally, you have throw in a bit of what I'm calling stable-diffusion-prompt-isms where you almost excessively drop references to known brands or design philosophies to trigger those 'latent' memories and steer away from the more-basic stuff that seems to otherwise surface.