Short GIF vs interactive demo which shows value faster?

Writing long paragraphs on landing pages is so tempting because as builders we want to explain every detail. I made the exact same mistake early on with wall of text feature lists, and our bounce rate was awful.

Switching our main hero section to a 5-second auto-playing GIF brought our conversion rate up almost overnight. Showing the actual output right away works way better than telling people what to expect.

Do you prefer using quick video clips or interactive sandbox demos for showing product value?