Upload your source video
Upload a video clip up to 120 seconds. The model segments the foreground subject automatically — no green screen or manual masking required.
Video tools
AI Video Background Changer
Change video backgrounds with prompt-based AI editing. Swap scenes behind your subject for clean, professional clips without green screen or manual masking.
Previewvideo
BG Changer
Change video backgrounds through prompt-based video editing.
Upload video
MP4, MOV, WebM up to 100MB
How it works
How to use BG Changer
Describe the new background
Write a specific background description in the prompt — "a rainy Tokyo street at night with neon reflections" produces a better result than just "city." For a photo-based background, attach a reference image in the image field.
Generate the background-swapped video
Submit the job. HappyHorse 1.0 Video Edit replaces background pixels while preserving subject edges, skin tones, and motion continuity across every frame.
Why use it
Why use AI Pin Maker video tools
Workflow-first setup
Each page maps one user job to the required video inputs and model family.
Model fit
Uses the currently verified video-edit endpoint in the live model list.
Runnable tools
Ready tools connect to the AI Pin Maker video generation workspace.
Connected routes
Related video tools help continue from effects into editing, music, and production workflows.
FAQ
Video tool FAQ
- Does video background changing require a green screen?
- No green screen needed. The model uses semantic segmentation to identify the foreground subject automatically, then replaces background pixels while preserving subject edges and motion across all frames.
- Can I use a real location photo as the new background?
- Yes — attach a reference image of the target background in the image input field. The model will match the lighting and perspective of the reference while adapting it to the video's motion and depth.
- Will the background change look realistic for every shot?
- Results are best on shots with clear subject/background separation and minimal motion blur at edges. Fine hair, transparent materials, and fast lateral movement are harder; try adding slight motion to the description (e.g., "gentle wind rustling leaves") to blend segmentation edges.
- What video formats and lengths are supported for background changing?
- The tool accepts videos up to 120 seconds. MP4 (H.264) uploads at up to 1080p resolution work most reliably; high-bitrate or uncommon formats may be transcoded automatically before processing.
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