MiniMax H3 Recast

Name: MiniMax H3 Recast
Author: MiniMax

byMiniMax

Drop new faces into a finished clip while the original timing, camera moves, cuts and soundtrack play on untouched

How MiniMax H3 Recast works

You bring the performance and the faces. Order your photos to match who is where on screen, nudge the mapping with a short prompt only if you need to, and let the clip keep its own length and sound.

Load your source clip

Add a 5 to 30 second video with the right performance and final sound, with no single shot running past 15 seconds.

Two instant-film portraits, a young man with curly hair and a woman with silver braids, wired in order into the People input of MiniMax H3 Recast.

Line up your reference photos

Add one clear photo per new person, up to four, ordered to match the screen positions from left to right.

Test, then render

Add an optional prompt to remap who becomes whom, check identity at 768p, then render the final recast at 1080p.

What MiniMax H3 Recast is good at

A recast tool, not a generator: it holds on to everything the footage already does well and changes only who is in it.

Cast up to four, left to right

Supply up to four photos and they replace the main people from left to right in every shot they appear in, with identity tracked across cuts. Add a short prompt to override the order.

Performance stays, people change

The source clip is the performance. Head turns, timing, expressions, lighting and lens movement carry over while faces and outfits follow your reference photos.

Cuts and sound carried over

Edit rhythm and the original soundtrack come through intact, so a recast is a drop-in replacement for the finished clip, not a rebuild.

768p test, 1080p final

Check casting and identity on a short 768p pass, then commit to 1080p once the faces hold. Output length matches the source, so cost follows clip duration.

Made with MiniMax H3 Recast

Each clip starts from a different source performance: a music-video close-up, a barista ad, a fencing duel, a skate launch and a dawn fish-market scene, with the people swapped and the motion, cuts and sound inherited.

A performance reused with a brand-new lead

One spot, a personalized cast

Two-person choreography, recast left to right

A viral skit, new face

Naturalistic and grounded, like the source

What people build with MiniMax H3 Recast

Directors, ad teams, short-form creators and fashion and e-commerce crews reach for it when the take is right and only the casting is wrong.

Film directors swapping stand-ins

Shot the scene with a stand-in? Replace them with final cast while blocking, lens movement, timing and sound stay exactly as filmed.

Advertisers making personalized spots

Produce one ad once, then recast it for each market or audience with up to four new people per version. Edit and soundtrack stay identical.

Short-form creators reusing a skit

Keep a performance that already works, such as a dance, a gag or a reaction, and put new characters into it without reshooting.

Fashion teams recasting lookbooks

Use a single runway or turntable walk and recast it across different models. Hair and outfit follow the reference photo when it shows more than a face.

E-commerce teams localizing demos

Take one product demo clip and recast the presenter for each regional storefront, keeping the demo's script, timing and sound intact.

MiniMax H3 Recast specs

Plans and credits

Inputs: Video, People (up to 4 images), Prompt (text)
Output: video
Resolution: 768p, 1080p
Cost: 413–37,196 credits per run

MiniMax H3 Recast questions

It replaces the people in an existing video with the people in your reference photos. The source motion, camera work, cuts and audio are kept, so it's a casting swap on finished footage, not a new generation. By default, photos replace the main people from left to right in every shot they appear in.

Between 5 and 30 seconds, and no single shot may run longer than 15 seconds. Split long takes first. The recast keeps the length of the source.

Up to four, one photo per person. Photos replace the main people from left to right by default, so order them to match screen positions. Add a prompt such as 'the woman on the right becomes person 1' to override the order.

One sharp, front-facing, evenly lit photo per person. A half-body shot carries hair and clothing better than a tight headshot. Avoid sunglasses, hats, hands over the face, group photos, and low-resolution or heavily filtered portraits.

Test at 768p, then render the final at 1080p. A short 768p pass confirms the casting and identity before you pay for the higher resolution, and cost scales with clip duration.

Skip it when you need new motion, new camera moves or a changed environment, since the source dictates all of that. It also struggles with busy crowds, small or distant faces, and fast action or occlusion after hard cuts. Identity can drift back toward the original actor in long shots or profile turns.