Minimaxh3.ai

Minimaxh3.ai is an AI video generator that combines text, images, audio, and clips to produce native 1440p video with stereo audio.It accepts up to 9 images, 3 video clips, and 3 audio tracks in a single request to generate one-pass, coherent cinematic shots.

Features include instruction-based editing to swap characters, replace backgrounds, relight scenes, rewrite dialogue, and preserve unedited frames for iterative edits.Voice cloning and native audio generation let teams provide a sample voice and generate synced dialogue with ambient sound and effects.

Preserves on-screen text, product labels, UI elements, and brand marks for e-commerce, ads, and product demos.Supports multiple aspect ratios and camera-language controls like rack focus, match cuts, and handheld motion for director-style framing.

Use cases include social content, trailers, game CG and UI demos, product showcase videos, and animated character scenes requiring consistent character continuity and style reference.

Key Features

• Generates native 1440p video with stereo audio
• Accepts text, images, audio, and clips (up to 9 images, 3 video clips, 3 audio tracks) in a single request to produce one-pass coherent cinematic shots
• Instruction-based editing to swap characters, replace backgrounds, relight scenes, rewrite dialogue, and preserve unedited frames for iterative edits
• Voice cloning and native audio generation with synced dialogue plus ambient sound and effects
• Supports multiple aspect ratios (21:9, 16:9, 4:3, 1:1, 3:4, 9:16) and camera-language controls (rack focus, match cuts, handheld motion) for director-style framing

Use Cases

• Create cinematic 1440p product demos or marketing videos directly from text, images and clips — swap characters, replace or relight backgrounds, clone voices for localized narration, preserve logos and on-screen text, and export optimized multi-aspect assets for web, mobile and social
• Produce polished instructional or training videos by editing existing footage with instruction-based dialogue rewrites and character continuity fixes, apply relighting and director-style camera moves, sync voice-cloned narration, and export lesson-ready versions in multiple aspect ratios
• Create high-quality short films or episodic content without reshoots by performing character swaps and continuity edits, background replacement and relighting, voice cloning for ADR, maintain on-screen assets and titles, and export finished 1440p masters for distribution

Who is it for?

• Social media creators
• Marketing and advertising teams
• E-commerce product teams
• Game developers and cinematic designers
• Indie filmmakers and directors
• Animation and character studios
• Vfx artists and video editors
• Ui/ux designers creating product demos
• Creative agencies and brand teams
• Voiceover producers and sound designers
• Small production teams and startups