How to Make an AI Gym Video from a Photo (VdoBloom Gym Effect Guide)
The six Gym Video templates on VdoBloom, why its model roster is narrower than other effects, real credit costs per model, and the exact steps to a clean fitness clip.
To make an AI gym video on VdoBloom, open the Gym Video effect, upload one photo of the person, choose one of the six workout templates (Dynamic Workout, Power Lifting, Cardio Training, Muscle Flex, Squat Pose or Yoga Stretch), pick a model and duration, and generate — a 5-second 720p clip on Runway Gen-3 costs 10 credits, which is $0.50. The result is a short fitness clip in which the person from your photo is moving in a gym: lifting, running, stretching or posing, with gym lighting and equipment built around them.
What the Gym effect really is
This is not motion tracking on your original photo. The Gym tab is one of VdoBloom’s keyframe effects, which means it runs a two-stage pipeline: a WAN keyframe step first builds a gym-environment frame from your photo, and the video model then animates from that frame. You are not charged twice — the keyframe step is included in the model’s credit cost. What you get for it is a far more convincing gym environment than a plain image-to-video pass would produce, because the equipment, the floor and the lighting are established before any motion is generated.
The practical consequence is that the model roster on this tab is deliberately narrower than on the free-form effect tabs. The keyframe dispatcher supports the Runway, Kling, PixVerse and Vidu families only. If you are used to picking Seedance or LTX-2 elsewhere in the dashboard, they will not appear here, and that is on purpose rather than an oversight.
If the photo is of a real person other than you, you need that person’s consent before generating anything.
The six templates
| Template | What it generates | Best photo for it |
|---|---|---|
| Dynamic Workout | Energetic general training, dynamic movement, professional gym environment, cinematic lighting | Standing, activewear, full or half body |
| Power Lifting | Weight lifting and strength training, gym equipment, dramatic lighting | Strong stance, arms visible |
| Cardio Training | Treadmill running, endurance training, active movement, bright gym lighting | Full-body shot, trainers visible |
| Muscle Flex | Bodybuilding pose, showing physique, professional lighting | Upper body, arms away from torso |
| Squat Pose | Squat with clean form, toned legs, gym environment | Full body, legs unobstructed |
| Yoga Stretch | Elegant yoga stretch, flexible pose, gym or studio, soft lighting | Full body, plain background |
Every template prompt ends with “based on uploaded image”, which is what anchors the generated person to your photo. If you rewrite the prompt from scratch, keep a clause like that or the likeness drifts within the first second.
What photo works best
- Full body for the movement templates. Cardio, Squat Pose and Yoga Stretch all need legs. A chest-up portrait forces the model to invent the lower half, and invented legs are where these clips go wrong.
- Activewear beats street clothes. The keyframe step has to transform whatever the subject is wearing into gym clothing. Starting from a t-shirt is a smaller jump than starting from a jacket and jeans.
- Simple background. The gym environment is generated; a busy original background competes with it and often survives as artefacts along the edges.
- Even, neutral lighting. Heavy colour casts carry into the final grade.
- One person only. This tab takes a single image and expects a single subject.
Credit cost by model and tier
At the Lite rate of $15 for 300 credits, one credit is $0.05. These are the real per-generation costs on the four families this tab supports.
| Model | Resolution | Duration | Credits | Cost | What you get |
|---|---|---|---|---|---|
| Runway Gen-3 (default) | 720p | 5s | 10 | $0.50 | Cheapest usable test pass |
| Runway Gen-3 | 1080p | 5s | 20 | $1.00 | Same motion, delivery resolution |
| Runway Gen-3 | 720p | 10s | 20 | $1.00 | Full rep cycle, more drift risk |
| Runway Gen-3 | 1080p | 10s | 30 | $1.50 | Best Runway value at length |
| Vidu Q2 Turbo | 720p | 4s | 15 | $0.75 | Fast, short, good for loops |
| Vidu Q2 Turbo | 1080p | 8s | 30 | $1.50 | Longest cheap 1080p option |
| PixVerse v5.5 | 720p | 5s | 35 | $1.75 | Strongest body motion realism |
| PixVerse v5.5 | 1080p | 8s | 55 | $2.75 | Premium delivery clip |
| Kling V2.5 Turbo | native | 5s | 40 | $2.00 | Smoothest limb movement |
| Kling V2.5 Turbo | native | 10s | 80 | $4.00 | Longest premium single clip |
The 10 free credits every new account gets cover exactly one 720p 5-second Runway Gen-3 run, so you can see how the keyframe step handles your own photo before spending anything. Full plan and credit-pack detail sits on the pricing page, and one-time packs from $2.49 never expire if you only need a handful of clips.
The exact steps
- Open /dashboard/video-creation/gym/.
- Upload one photo under Upload Photo.
- Pick a template. Each one has a preview clip — watch it before you spend credits, because the six templates differ far more than their names suggest.
- Adjust the prompt only if you want a specific setting (boutique studio, home garage gym, outdoor rig). Do not remove the anchoring clause.
- Choose a model from the Runway, Kling, PixVerse or Vidu families. Runway Gen-3 at 720p/5s for a first pass.
- Set duration and resolution, then generate.
- Download. Paid plans download watermark-free with commercial rights — see the no-watermark guide.
Getting better results
Run the cheap pass first. Ten credits tells you whether the keyframe step read your photo correctly, and that single fact decides whether spending 40 credits on Kling is worth it. If the keyframe puts your subject in the wrong body shape or the wrong wardrobe, changing model will not fix it — change the photo.
Prefer five seconds over ten for lifting and squat clips. A rep cycle that completes cleanly in five seconds beats a ten-second clip where the third rep dissolves. For cardio and yoga, the longer durations hold up better because the motion is continuous rather than repeated.
If you want a visibly more defined physique rather than a workout scene, that is a different tool: the Muscle effect changes the physique in place while preserving the pose, whereas Gym generates new movement. And if you want a still fitness image rather than a clip, the image generator is cheaper per output.
Model specs in full: Runway Gen-3, Vidu Q2 Turbo, PixVerse v5.5.
Frequently asked questions
How much does an AI gym video cost?
10 credits ($0.50) for 5 seconds at 720p on the default Runway Gen-3. Vidu Q2 Turbo starts at 15 credits for 4 seconds; Kling V2.5 Turbo is 40 credits for 5 seconds.
Why can I not select every model on the Gym tab?
Gym is a keyframe effect. Its WAN keyframe pipeline dispatches only to the Runway, Kling, PixVerse and Vidu families, so the picker shows those and hides models the pipeline cannot run.
Does the keyframe step cost extra credits?
No. You pay the video model’s listed cost for the resolution and duration you chose; the keyframe generation is included.
Can I use someone else’s photo?
Only with their consent. Generating a video of a real person requires their permission, and that applies to fitness content the same as anything else.
Which template looks most realistic?
Yoga Stretch and Cardio Training, because their motion is continuous. Power Lifting and Squat Pose are repeated movements, and repetition is where models most often lose form — keep those to 5 seconds.
Do I get a watermark on the download?
Free downloads carry a watermark. Every paid plan downloads clean with commercial rights.
Can I use these clips for a fitness business?
Yes on a paid plan, which includes commercial rights. Just be clear with your audience that the footage is AI-generated rather than a real training session.
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