Sign in to see your generations here
MiniMax H3 Max Recast is a video-to-video app that replaces the people in an existing clip with faces from your own photos, then tracks each replacement consistently from shot to shot. Supply a video between 5 and 30 seconds, one reference photo for each person you want to swap in, and an optional note on who becomes whom. The original motion, gestures, camera work and audio stay untouched. It handles up to four people and outputs an MP4 at 768P or 1080P, making it a precise tool for anyone personalising footage, recasting scenes or producing tailored video content.
How to use this app
- 1
Describe what you want to create, or upload your source file.
- 2
Pick your options, then press Generate.
- 3
Watch your result appear in the gallery within moments.
- 4
Download, share, or generate again with a new idea.
What you can make
Personalised brand videos
A marketing team films one polished product walkthrough with a stand-in presenter, then uses MiniMax H3 Max Recast to swap that presenter out for each regional spokesperson. The motion and delivery stay consistent; only the face changes, giving every market a version that feels locally produced.
Actor and talent demos
A casting director has a well-choreographed reference clip. By recasting the people in it with photos of auditioning talent, they can preview how a candidate reads in that specific scene without scheduling a full shoot for every candidate.
Family and personal keepsakes
Someone has archival footage of an event but wants to see a family member placed into the scene. Upload the clip, provide a clear reference photo, and MiniMax H3 Max Recast inserts that person while preserving the original gestures, camera movement and ambient audio.
Multi-character narrative recasting
Filmmakers working on a short with up to four speaking roles can prototype alternate casting choices from photos alone. Each character is tracked independently across cuts, so a two-minute scene cut into compliant 30-second segments can be processed with consistent face assignments throughout.
Ad localisation at scale
An advertising agency produces one hero ad with a single cast. Using MiniMax H3 Max Recast, they replace the on-screen talent with faces approved for different regional markets, keeping the original timing, soundtrack and camera work intact for every localised version.
Prompt ideas to try
Why creators use this app
- Replaces people from photos
- Tracks each person across shots
- Keeps motion, camera and audio
- Up to 4 people
- Up to 30s source
- 768P and 1080P
Tips for better results
Use clean, well-lit reference photos
MiniMax H3 Max Recast builds its replacement from your supplied photo, so a sharp, front-facing image with even lighting gives the model the clearest face data. Avoid heavy shadows, occlusions or extreme angles in the reference; those details carry through into the output.
Keep shots under 15 seconds
The app processes videos up to 30 seconds, but no individual shot within that clip can exceed 15 seconds. If your source material has a single long unbroken take, trim or cut it before uploading so every shot stays within the limit and tracking remains reliable.
Label who replaces whom
When your clip contains more than one person, use the optional note field to specify which photo corresponds to which on-screen person. A clear mapping avoids ambiguity and helps the model assign and track each replacement correctly across all shots.
Choose 1080P for delivery-ready output
If the final video will appear on a large screen, in a presentation or as a broadcast asset, select 1080P in the Resolution control before generating. Use 768P when you need a lighter file for quick review or web-only placements where the extra resolution is unnecessary.
When to choose this app
Choose MiniMax H3 Max Recast when the core task is identity replacement: you have a finished clip and specific people you want to appear in it. It preserves motion, camera work and audio precisely, and it tracks up to four individuals across cuts without any re-editing. AI Video Restyle is a different job: it changes the visual medium and surface of a clip rather than its cast. Kling O1 V2V Edit is broader still, handling general AI video editing rather than photo-driven face replacement across shots.
Frequently asked questions
How many people can I replace in a single clip?
MiniMax H3 Max Recast supports up to four people per video. You supply one reference photo for each person you want to swap in, and the app tracks each replacement independently across every shot in the clip.
Does the app change the audio or camera movement?
No. The original soundtrack, ambient audio, camera moves, gestures and shot timing are all preserved. Only the faces and appearances of the specified people are replaced; everything else in the clip remains exactly as it was in the source.
What happens if my video is longer than 30 seconds?
The app accepts source videos between 5 and 30 seconds. Clips longer than 30 seconds will need to be trimmed before uploading. For longer projects, you can process multiple compliant segments and assemble them afterwards in a video editor.
Can I control which person in my clip gets replaced by which photo?
Yes. The app includes an optional text field where you can specify who becomes whom. Using it is especially important when the clip contains more than one person, because a clear mapping ensures each reference photo is assigned to the correct on-screen individual.
What kind of reference photo gives the best result?
A sharp, well-lit, front-facing photo with minimal obstruction around the face works best. The model derives the replacement appearance from that single image, so clarity and even lighting in the reference translate directly into a more convincing and stable replacement throughout the clip.
Does the Enhance realism control affect the replaced faces or the whole video?
The Enhance realism control applies a post-processing pass intended to make the output look more naturalistic overall. It can help blend the replaced faces more smoothly into the original footage, particularly when lighting conditions in the reference photo and source clip differ slightly.
Which AI model powers this app?
This app runs on MiniMax H3 Max Recast, available through Arteza with no separate account or setup.
Can I use the results commercially?
Yes. Content you generate is yours to use, subject to our content licenses.
How long does a generation take?
Most generations finish in under a minute, and you can watch progress live in the gallery.