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FastH3-Omni, an open-source realtime version of MiniMax H3 with synchronized audio, previews on the Reactor API
@MiniMax_AI on X published this on Oct 13, 2026 (source: x.com).
Reactor introduced FastH3-Omni, which it calls the fastest and highest-quality open-source version of MiniMax's realtime H3 video model, post-trained by FastVideo at Hao AI Lab with nuvalab. It generates video with synchronized audio from a single prompt and supports first- and last-frame conditioning, audio input with dialogue and up to three reference images. It is an exclusive preview on the Reactor API until October 20, 2026; MiniMax shared the launch.
Source: X @MiniMax_AI
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