MiniMax H3

Product Introduction

1. Overview: MiniMax H3 is a state-of-the-art multimodal AI video generator that transforms textual descriptions, static frames, and various media references into high-definition video sequences.
2. Value: It democratizes professional-grade video production by enabling creators, marketers, and developers to generate custom, high-quality video content (up to 2K resolution) in seconds without requiring complex editing software or technical expertise.

Main Features

1. Multimodal Reference Engine: Accepts up to 12 combined reference materials including images (JPG, PNG, WEBP, HEIC), videos (MP4, MOV), and audio files (WAV, MP3). The system uses these references for precise style, motion, and scene composition guidance, supporting complex input combinations like Text+Image+Video+Audio.
2. Frame-Level Temporal Control: Offers granular control over video narrative through required first frame and optional last frame inputs. This allows users to define the exact starting and ending visual points, ensuring narrative consistency and precise storyboarding directly within the generation parameters.
3. High-Fidelity 2K Output: Renders video clips between 4 to 15 seconds in duration at a maximum resolution of 2K (2048x1080). Users can select from preset aspect ratios (21:9, 16:9, 4:3, 1:1, 3:4, 9:16) or use Auto mode, with support for dimensions ranging from 256 to 5760 pixels.

Problems Solved

1. Challenge: The high cost, time investment, and technical skill barrier associated with traditional video production for short-form content used in advertising, social media, and prototyping.
2. Audience: Content creators, digital marketers, game developers, advertising agencies, and product teams who need rapid, iterative, and cost-effective video content.
3. Scenario: A marketing team can generate multiple 2K video ad variants for an A/B test campaign by uploading a product image, a style reference video, and a voiceover audio file, combined with a text prompt describing the desired action—all within a single workflow.

Unique Advantages

1. Vs Competitors: Unlike many text-to-video models limited to single-modal input, MiniMax H3's robust multi-reference system (images, video, audio) provides significantly higher creative control and output fidelity, bridging the gap between simple generation and directed creative production.
2. Innovation: Its integrated ComfyUI workflow compatibility and prompt syntax (using @ to reference uploaded assets directly in the text prompt) represents a technical edge, offering advanced users a node-based interface for complex, reproducible video generation pipelines.

Frequently Asked Questions (FAQ)

1. What video formats and resolutions does MiniMax H3 support? MiniMax H3 generates videos in standard formats with a maximum output resolution of 2K (2048x1080 pixels), supporting durations from 4 to 15 seconds and multiple aspect ratios including 16:9, 1:1, and 9:16 for social media.
2. Can I use MiniMax H3 to continue or modify an existing video? Yes, you can use the First & Last Frame Control feature. By providing a required first frame (image) and an optional last frame, you can direct the AI to generate a video segment that starts and ends with your specified visuals, effectively extending or bridging video content.
3. What are the limits for uploading reference files? The system allows up to 9 reference images (max 30MB each), 3 reference videos (15 seconds total, max 50MB each), and 3 audio files (15 seconds total, max 15MB each). The total request size for all uploaded materials must not exceed 64MB.