MiniMax H3 is the open-source video generator that made 2K output a mainstream feature: it combines text, images, video and audio references to produce 2K clips of 5-15 seconds at 24fps with native stereo sound generated in a single pass. Aixploria rates it 4.5/5, and its multi-asset system is the differentiator – up to 12 references (9 images, 3 videos, 3 audio clips) steer identity, motion, framing, edit rhythm, atmosphere and voice, so characters and camera moves survive scene changes.
Run it two ways: free open weights for self-hosting, or the hosted Hailuo editor at hailuoai.video with trial credits and plans from $9.99 per month – H3 2K generation runs an estimated $0.073-$0.120 per second, roughly half the cost of Seedance 2.5 at 720p. Editing is as notable as generation: replace or remove people, relight scenes and revoice dialogue while untouched content stays stable. The companion H3 Max API variant (with fal.ai) starts at $0.05 per second at 480p.
