Replace one or multiple people in a video with MiniMax H3 Recast using one reference photo per character, while keeping the original performance, camera movement and sound.
Upload a 5–30 second source video and 1–4 character photos. Keep each continuous shot within 15 seconds. Audio follows the source.
Use one photo per new person. Photos replace the main people from left to right by default; describe a different mapping here.
Add 1–4 photos, one per replacement person, in the order they should appear.
Preview video - Generate your own video above
Compare the source video, character reference and recast result together. This example uses one photo; Recast supports replacing multiple people with up to four character photos.
Input video
Input image
Output video
MiniMax H3 Recast is the H3 Max video-editing variant for replacing people in footage using reference photos. It follows people across shots and aims to retain their performance, gestures, camera movement, cuts and original soundtrack. Unlike open-ended reference generation, your existing video defines the scene and timing.
Keep an existing creative direction while giving the people in the shot a different identity.
Upload a character photo rather than describing a face from scratch. Recast uses it to establish who should appear in your source performance.
The source provides gesture, staging and camera travel. Recast is designed to follow the replacement character across shots without rebuilding the sequence from a text prompt.
Use a different photo for each person you want to replace. Photos map to the main people from left to right by default; use the optional prompt when you need a different assignment.
Choose footage with clear faces and a readable performance, then define the new cast.
Use a 5–30 second clip under 100 MB, with no individual shot longer than 15 seconds.
Upload one clear photo per replacement person, up to four. Order them from left to right or explain the mapping.
Select 768P or 1080P. Optionally describe who should change and which details matter; the form shows the credits for your clip.
Review identities across cuts, hands, gestures and background details. Play the audio, then download the result.
Reuse a performance when the cast is the part you want to change.
Try different lead characters in one advertising performance while retaining the scene direction.
Explore how another character fits a completed scene before arranging another shoot.
Replace several main people using a separate reference photo for each new cast member.
Bring a chosen character identity into several suitable source clips with its own reference photo.
Keep the original gesture and camera choreography as the basis for a new on-screen person.
Make casting variations of a short approved video without rebuilding every shot from a prompt.
Know what your source footage controls before you generate.
Recast is a dedicated H3 Max endpoint for replacing people in source footage. The general Character Swap workflow regenerates a scene from multimodal references; Recast specifically targets source performance, cuts and audio.
Upload one to four photos, one per new person. By default the photos replace the main people from left to right. The optional prompt can specify a different mapping.
The total source must be 5–30 seconds and every individual shot must be no longer than 15 seconds. This page accepts video files up to 100 MB.
The Recast output includes the source sound. You do not upload replacement audio or choose a separate generated soundtrack in this workflow.
The source video supplies duration, scene composition and timing. Choose 768P or 1080P output; the form reads the source duration rather than offering an independent length selector.
Credits depend on the uploaded clip length and output resolution, and are shown before generation. A five-second clip uses 375 credits at 768P or 565 credits at 1080P. Fractional source seconds are rounded up for the credit calculation; character photos are included.
No. The source video and character photos are required; a prompt is optional. Add instructions when the default person order is ambiguous or you need to specify what should stay the same.
Recast aims to retain motion, camera, cuts and audio, but visual details can change. Review every shot, particularly occlusions, hands and faces, before using a result in a finished edit.
Bring a source performance and your character photos, then create the next casting variation.
