xAI 发布 Grok Imagine Video 1.5

Grok Imagine Video 1.5 focuses on improved video quality and faster generation speed, continuing xAI's push into multimodal creation.

Grok Imagine Video 1.5 强调更高视频质量和更快生成速度，说明多模态生成仍在向视频质量、速度和产品化体验推进。对生图/视频 API 选型也有参考意义。