The MiniMax H3 model
MiniMax H3 Model — Open Multimodal Video AI
An overview of the MiniMax H3 model: 33B open-weight multimodal video AI released July 31, 2026 — up to 15s, 2K, native stereo audio, reference-guided generation, and #1 video-editing rankings.
Topics covered: minimax h3, minimax h3 model, h3 ai
What is the MiniMax H3 model?
MiniMax H3 is an open general-purpose multimodal video model with 33B parameters and open weights, released on July 31, 2026. It generates video with native stereo synchronized audio — speech, sound effects, and ambience — in clips up to 15 seconds long at up to 2K resolution and 24fps.
Its input modes cover the full creative pipeline: text-to-video, image-to-video, first and last frame keyframes, reference-guided generation (Ref2VA), and video editing / video-to-video. Camera control includes pan, zoom, tilt, and roll with timecode shot timing like [0s-3s].
How the community rates MiniMax H3
Since release, creators have praised MiniMax H3 for image fidelity, editing control, and character consistency, and it holds #1 on the Artificial Analysis video-editing leaderboard and Arena image-to-video board. Honest limitations exist too: occasional mouth and tongue artifacts on faces, imperfect physics, and slow local rendering when running the open weights yourself.
Using MiniMax H3 through H3 Video avoids the local-rendering problem entirely — the model runs in the cloud and you work in your browser.
MiniMax H3 vs Sora
Sora still leads for pure-text cinematic motion. MiniMax H3 wins on image fidelity, image-to-video adherence, editing and video-to-video control, native synchronized audio, and price. If your workflow starts from images, references, or existing footage, H3 is the stronger toolchain — and H3 Video makes it a browser app.
Create your first H3 AI video
Generate up to 15 seconds of 2K video with native stereo audio, powered by the MiniMax H3 model. See the credit cost before you generate — free to start.
Open the H3 Video generatorH3 Video FAQ
Is MiniMax H3 open source?
MiniMax H3 ships with open weights (33B parameters), so the community can run and fine-tune it locally, though local rendering is currently slow. H3 Video runs it in the cloud instead.
Does MiniMax H3 have audio?
Yes — native stereo synchronized audio covering speech, sound effects, and ambience is generated with the video.
Is H3 Video the official MiniMax H3 site?
No. H3 Video is an independent platform powered by the MiniMax H3 video model. H3 Video is not affiliated with, endorsed by, or sponsored by MiniMax or Hailuo AI.