# Add Muscle to Video with AI | AI Muscle Video Editor | Make AI Video Source page: https://www.makeaivideo.net/ai-muscle-video > Add muscle to an uploaded video with AI — athletic to bodybuilder lean — while keeping the same face, walk, clothes and background. Not a photo meme generator. Plain-text version of this page for AI assistants and readers. Site overview: https://www.makeaivideo.net/llms.txt Prices and plan details change; the current ones are on https://www.makeaivideo.net/pricing --- [Home](https://www.makeaivideo.net/)/[AI video tools](https://www.makeaivideo.net/tools) # Add Muscle to Video with AI Upload an existing clip — not a still photo — and give the person clearer athletic muscle: fuller shoulders, chest and arms that read on a phone screen, without swapping the face or rewriting the walk. See the muscle edit Same person — Athletic/Bodybuilder strength. Demo stills are temporary reference looks. Before After ## What is AI muscle video editing? AI muscle video editing changes physique inside footage you already shot. The motion, framing, clothes and background stay; shoulders, arms and chest get a clearer fitness-athlete look. That is different from an AI muscle generator that starts from one photo and invents a gym flex meme — that photo effect lives on our separate AI Muscle page. ## How AI muscle video editing works - 1 ### Upload a short video MP4 or MOV, about 2 to 10 seconds. A clip where the upper body is visible under a fitted shirt works best — baggy coats leave the model nothing to reshape. - 2 ### Pick a look Tap Athletic, Defined, Strong athletic, or Bodybuilder lean — or type your own. Stronger chips push a clearer phone-screen difference. - 3 ### Generate the edit A 2-second preview is 18 credits; the full 5 seconds is 40. Face, walk, clothes and scene stay locked. - 4 ### Download and compare Open the before/after side by side on your phone. If it undershoots, tap a stronger chip (Defined → Strong athletic → Bodybuilder lean) and generate again. ## Why use AI muscle video editing on Make AI Video ### Video in, not photo in Built for an existing moving clip. The separate AI Muscle page is the photo-to-flex meme if that is what you want. ### Selectable strength Athletic → Defined → Strong athletic → Bodybuilder lean. Pick a chip so you are not guessing how hard the edit should push. ### Identity and motion locked Same face, hairstyle, clothes, camera path and timing. Only the physique read changes. ### Clear credits before you start Preview 18 credits (2s), full pass 40 credits (5s). Failed runs are not charged. New accounts get 18 free credits. ## What people use AI muscle video editing for ### Fitness and gym clips Polish a walk-in or form-check clip so the physique reads stronger without restyling the whole scene. ### Creator before/after posts Pair the original take with the edited pass for a scroll-stopping comparison. ### Character and costume tests Push an athletic look on a take you already like before you reshoot. ## Specs for AI muscle video editing - You provide: 1 video (MP4, MOV, WebM) + a prompt (optional) - You get back: An MP4 you can download and post anywhere - Aspect ratio: 16:9, 9:16 or 1:1 - Length: 5, 8 or 10 seconds - Resolution: 720p or 1080p - Cost: 18 credits for a 2s preview, 40 for 5s ## Questions about AI muscle video editing ### Is this the same as the AI Muscle photo effect? No. AI Muscle Video edits an uploaded clip. The AI Muscle page starts from one photo and runs a shirt-tear / flex meme. Use this page when you already have video. ### Will my face and clothes stay the same? Yes. The edit is written to keep face, identity, clothing, lighting, background and motion, and only change how muscular the body reads. ### How strong is the muscle change? Pick a chip: Athletic is a fitness-athlete read; Defined and Strong athletic push harder; Bodybuilder lean is the strongest still-realistic look on this page. Extreme shirt-tear parody belongs on the separate AI Muscle photo page. ### What clip works best? 2–10 seconds, upper body visible, fitted shirt or tank, steady light. Heavy coats and deep shadow hide the physique and weaken the edit. ### How much does it cost? A 2-second preview costs 18 credits; 5 seconds costs 40. New accounts get 18 free credits with no card. ### Can I remove objects or change the background instead? Yes — use Remove Object From Video or Change Video Background. Those tools protect people and only change what you name. ## Try AI muscle video editing free 18 credits when you sign up, no card. Runs start at 40 credits depending on the model you pick. Make one now Need a different edit? - [AI Muscle Video Effect](https://www.makeaivideo.net/ai-muscle) — photo → flex meme (separate tool) - [Remove Object from Video with AI](https://www.makeaivideo.net/ai-remove-object-from-video) — erase a named object - [Change Video Background with AI](https://www.makeaivideo.net/ai-change-video-background) — replace only the backdrop ## More tools like AI muscle video editing [AI Muscle Video Effect](https://www.makeaivideo.net/ai-muscle) · [Video to Video AI: Restyle Any Clip](https://www.makeaivideo.net/video-to-video) · [Change Action in a Video with AI](https://www.makeaivideo.net/ai-change-video-action) · [Remove Object from Video with AI](https://www.makeaivideo.net/ai-remove-object-from-video)