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POST
Grok Imagine 1.5 Fast
grok-imagine-1.5-fast is the xAI Grok Imagine 1.5 Fast: 6 to 30 second 720p clips from text or up to seven reference images. Confirm live rates on the models page.
string
required
Set to grok-imagine-1.5-fast.
string
required
Describe the subject, action, camera movement, lighting, and audio intent.
string
default:"10"
Output length: 6 to 30 seconds.
string
One of 16:9, 9:16, 1:1, 3:2, 2:3. Send it explicitly; do not send a pixel size.
string[]
Up to 7 public http/https image URLs, each up to 10 MB (JPEG, PNG, WEBP).

Request

The response returns a queued task id. Poll and download with the same model:
See the Video API workflow for polling intervals, webhooks, and failure handling.
Media inputs must be public http or https URLs. Private network addresses and local files are rejected. Failed generations are not charged.