>>150824571
1) First, you need a still image. You either generate this in another service, Grok chat, or Grok Imagine.
2) Go to Grok Imagine (either in app or https://grokimagine.ai/), if you weren't there already (Grok Chat won't cut it) and upload your image. The button differs in every interface, but there are only a few buttons.
3) With the image uploaded, it will automatically gen a video for you (annoying, to be fixed soon). To make a custom one, select the custom option, or just type it into the prompt window.

So your "image prompt" and "video prompt" are two separate fields. You can't just say "make this a video," you need to select the video option, and then ONLY in Grok Imagine and not conventional Grok Chat.