Minimax H3

Minimax H3 is an AI video generator that turns text, images, audio, and video clips into finished videos with native stereo sound. You can describe a scene in up to 7,000 characters, upload up to 9 images, 3 video clips, and 3 audio tracks, and the tool blends them into a single cinematic shot. It outputs in up to 1440p resolution at 24 FPS, with accurate on-screen text, logos, and product details. The generated video includes sound effects, music, and dialogue, all synced automatically.

What sets Minimax H3 apart is its conversational editing. You can swap a character's outfit, replace a background, relight a scene, or rewrite dialogue with a single sentence. Unchanged parts of the video stay pixel-stable. The tool also supports voice cloning — provide a voice sample and your character can speak new lines in that same voice. It understands camera language like rack focus and hard cuts, so the results feel directed rather than generated. It supports any aspect ratio from 21:9 cinema to 9:16 vertical for social media.

Minimax H3 is built for content creators who need fast, polished videos for TikTok, Reels, and YouTube. Marketers and agencies can test multiple ad concepts quickly, and e-commerce sellers can turn flat product photos into listing videos with motion and sound. Game developers can generate character PVs and UI demos. It's free to start with no credit card required, making it accessible for anyone who wants to produce video content without editing skills or expensive software.