How to Write Structured Prompts for MiniMax H3 AI Video Generation

A practical guide published on DEV Community outlines a structured approach to writing prompts for MiniMax H3, an AI video generation model. The guide argues that effective prompts should function like production specifications, covering subject, action, camera movement, lighting, timing, and audio in separate, purposeful sentences. A key recommendation is to describe motion as a timeline, breaking a clip into timestamped segments to convey what happens between frames rather than just the final image. The guide also advises separating subject motion from camera motion to avoid conflicting instructions, and using precise cinematographic terms such as 'slow dolly-in' instead of vague phrases like 'cinematic camera movement'. These techniques are presented as ways to make AI video prompts easier to debug, reuse, and control across use cases like product reveals, fashion shots, and vehicle videos.