FastVideo releases FastH3 Preview v0.1, 4-step distilled H3

FastVideo released four open-weight FastH3 Preview v0.1 checkpoints that cut MiniMax H3 from 49 transformer calls to four, generating 768p video with 32 kHz stereo audio. On one B200, 15s videos generate in 47s, nearly realtime with 4 B200s. RTX-based acceleration is coming soon.
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