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xAI Releases Grok Imagine Video 1.5, Doubles Generation Speed With Fast Variant · cho.sh

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xAI Releases Grok Imagine Video 1.5, Doubles Generation Speed With Fast Variant

AI video model releases

xAI Releases Grok Imagine Video 1.5, Doubles Generation Speed With Fast Variant

Grok Imagine Video 1.5 is now generally available in the xAI API as grok-imagine-video-1.5, moving out of preview and supporting image-to-video generation with configurable duration and resolution up to 720p.
Grok Imagine Video 1.5 Fast nearly doubles generation speed, producing a 6-second 720p video in about 25 seconds compared to 40+ seconds on the previous model.
The model generates sound effects, ambience, and dialogue in the same pass as video, with clearer speech and better lip sync than the prior version.
Motion and physics are improved, with movement holding together more consistently across a clip and fewer visual warps.
xAI is rolling out workflow features including Projects for organizing work, parallel multi-agent generation, and a search function for finding past images and videos in the library.

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