Minimax H3 is an AI Video tool. Turn text, images, audio, and video clips into cinematic 1440p videos with native stereo sound and in-chat editing capabilities. Best for content creation, e-commerce and marketing and advertising.
About Minimax H3
Minimax H3 is built to handle the technical reality of video production: you rarely work with just text, or just images, or just audio. The platform accepts up to 9 images, 3 video clips, and 3 audio tracks in a single request, processes them together in one pass, and outputs a finished 1440p video at 24 FPS with native stereo sound. It's designed for creators and teams who need commercial-grade output—accurate on-screen text, logos, product detail, and character consistency—without juggling separate tools for generation, referencing, and editing.
The features that matter
- Multimodal input in one pass. Mix images, video clips, and audio tracks together. Minimax H3 reads character faces, motion, camera language, voices, and visual style simultaneously, then blends them into a single coherent shot.
- Instruction-based editing. Swap a character's outfit, replace a background, change dialogue, or relight a scene using plain-language commands. Everything you don't edit stays pixel-stable, so you iterate shot by shot like a director giving notes.
- Native voice cloning & stereo audio. Every video ships with stereo sound. Provide a voice sample and the tool generates new dialogue in that voice, synced to lip movement and emotion.
- Multiple aspect ratios & resolutions. Generate in 21:9 cinematic, 16:9, 4:3, 1:1, 3:4, or 9:16 vertical formats. Output reaches 1440p with accurate text, UI elements, and product labels for ads and e-commerce.
- Reference-based consistency. Feed a character photo to keep faces on-model, a motion clip to copy choreography, and a style frame to match the look—all at the same time, across one video.
- Text-to-video & image animation. Write prompts up to 7,000 characters, or animate still photos by defining first and last frames while the tool fills in natural motion between them.
Who this is built for
The platform targets creators and teams working on commercial projects: e-commerce sellers turning product photos into listing videos, marketers validating ad concepts before production, game studios generating character PVs and UI demos, and filmmakers previsualing scenes. It's equally useful for content creators producing shorts for social platforms—you can generate vertical 9:16 videos with sound in minutes instead of spending hours in an editor.
Realistic expectations
Minimax H3 generates videos up to 15 seconds in a single pass, which is suitable for clips, ads, and social content, but not feature-length work. Output quality depends on prompt clarity and reference quality; vague instructions or low-resolution source images will show limitations. The free tier lets you try the tool, but production workflows at scale require a paid plan. Character consistency improves with clear reference images, though edge cases (extreme angles, occlusion) may require iteration or instruction-based fixes.
Key Features
Accepts up to 9 images, 3 videos, and 3 audio tracks in single request
Native stereo audio generation and voice cloning from reference samples
Instruction-based editing to swap characters, backgrounds, and dialogue
Supports multiple aspect ratios from 21:9 cinematic to 9:16 vertical formats
Maintains character consistency and on-screen text accuracy for commercial use
Generates 5-15 second videos in 1440p resolution at 24 FPS with one pass
Frequently Asked Questions
MiniMax H3 accepts up to 9 images, 3 video clips, and 3 audio tracks in a single request. It supports standard image, video, and audio formats for multimodal input.
Yes. You can instruct H3 to swap characters, replace backgrounds, relight scenes, rewrite dialogue, or clone voices using plain-language instructions. Unedited parts remain pixel-stable.
Yes. Every generation includes native stereo sound with ambience, effects, music, and dialogue. You can provide voice samples for H3 to clone voices for new dialogue.
MiniMax H3 generates up to 1440p resolution at 24 FPS in multiple aspect ratios: 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16. It can also automatically select the best frame format.
