AI Weight Loss Simulator turns one clothed full-body or portrait photo into a realistic preview of how you could look after losing or gaining weight. Set a change from minus 100 to plus 100 pounds, choose where you carry weight, such as belly, hips and thighs, or all over, and the AI redistributes the change the way a real body changes rather than simply pinching the photo narrower, keeping your face, features, clothing, and background intact. The result is a downloadable HD before-and-after card that many users keep as a motivation reminder. The site is explicit that the preview is for visualization and motivation only, not medical, fitness, or nutrition advice, and that shirtless, swimwear, or underwear photos are often blocked by its safety filter. Pricing is one-time credit packs with no subscription and credits that never expire, starting at $1.90 for one HD simulation, $4.90 for four, and $9.90 for ten simulations or two body reports. Photos are deleted after generation and never used for training.