Key Info

FastH3-Omni, described as the fastest and highest-quality open-source version of realtime H3 by MiniMax, was post-trained by FastVideo (haoailab) with nuvalab and is available as an exclusive preview on the Reactor API until October 20, 2026.

Highlights

  • Generates video with synchronized audio from a single prompt
  • Supports first and last frame conditioning
  • Accepts audio input with strong dialogue capability
  • Supports up to 3 reference inputs
  • Exclusive preview on the Reactor API until 10.20.2026