reactor
@reactorworld
The Developer Platform for World Models.
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Introducing FastH3-Omni.
The fastest and highest-quality open-source version of realtime H3 by @MiniMax_AI, post-trained by FastVideo @haoailab with @nuvalab.
Exclusive preview on the Reactor API until 10.20.2026.
• First and last frame conditioning
• Audio input + strong dialogue
• Up to 3 reference images
• Frontier-level performance
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Meet S2-Avatar by @ViduAI_official.
For the first time, create truly interactive AI personas which you can prompt with audio, text or reference images.
Available day 0 on Reactor.
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🚀 FastH3 on Reactor just got an upgrade, thanks to FastVideo @haoailab.
Stream 720p with better audio and dialogue, sharper detail in high-motion scenes, and more consistent faces from frame to frame, all at the same speed.
Get started now:
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We're proud to partner with @nvidia's SANA team to ship FastH3 with Sol. For the first time, generate clips 3x faster than realtime.
Available day 0 via the Reactor API.
Try it here:
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At Reactor we ❤️ open-source.
We teamed up with @haoailab to ship an infinite live stream powered by FastVideo’s FastH3:
And we’re open-sourcing everything!
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