xAI releases Grok Imagine 1.5 preview image-to-video model

xAI 发布 Grok Imagine 1.5 预览版（图像转视频模型）

xAI released grok-imagine-video-1.5-preview via its API, letting users turn one still image into 720p video while controlling camera movement, pacing, and sound effects with natural-language prompts.

Why it matters: HKR-H/K/R all pass: xAI ships a named image-to-video API preview with 720p output and sound controls. It stays below 85 because this is a preview product update, not a flagship foundation-model release.