Use Grok Imagine Video 1.5 Preview through Rivya Public API v1 with model id grok-imagine-video, supported inputs, parameters, Files API rules, credits, and response examples.

Available via APIText or URL ready; reference modes use Files APIVideo

API model id

grok-imagine-video

Inputs

text, file

Files API

Required for reference modes

Base credits

per_output_second · 480p=2.4 · 720p=4.5 · ⌈total⌉

Capability

Video

Billing

METERED

Prompt limit

4096 characters

Request contract

Send the model id at the top level. Model-specific controls belong in params.

Key	Type	Required	Default	Description
model	string	Yes	grok-imagine-video	Use the grok-imagine-video API model id.
prompt	string	Yes	-	Maximum 4096 characters for this model.
params	object	No	-	Model-specific parameter object. Use the rows below for allowed keys.
client_request_id	string	No	-	Optional client-side id for tracing requests in your system.

Model parameters

Key	Type	Required	Default	Range	Options	Description
duration	number	No	8	min 1 / max 15 / step 1	-	Duration
resolution	select	No	480p	-	480p, 720p	Resolution
aspect_ratio	select	No	auto	-	auto, 1:1, 16:9, 9:16, 3:2, 2:3	Aspect ratio
nsfw_checker	select	No	true	-	true, false	Content filter

Upload policy

Upload reference files first, then place the returned URL and duration token inside params.referenceMediaItems.

Reference rule

Reference image: Up to 7 JPEG, PNG, or WebP images, each no larger than 20MB.

Max files

Accepted file kinds

image

Duration token

Video and audio references should carry durationToken from /api/v1/files when duration verification is required.

kind	Max size	MIME types
image	20 MB	image/jpeg, image/png, image/webp

Minimal request

{
  "model": "grok-imagine-video",
  "prompt": "A cinematic product reveal with smooth camera movement",
  "params": {
    "duration": 8,
    "resolution": "480p",
    "aspect_ratio": "auto",
    "nsfw_checker": "true"
  }
}

Reference-file request

{
  "model": "grok-imagine-video",
  "prompt": "A cinematic product reveal with smooth camera movement",
  "params": {
    "duration": 8,
    "resolution": "480p",
    "aspect_ratio": "auto",
    "nsfw_checker": "true",
    "referenceMediaItems": [
      {
        "url": "https://cdn.example.com/reference-image.png",
        "kind": "image",
        "name": "reference-image.png",
        "mimeType": "image/png"
      }
    ]
  }
}

Create response

The create endpoint returns a public task id. Poll the status endpoint until the task succeeds or fails.

{
  "id": "task_grok_imagine_video_example",
  "status": "queued",
  "model": "grok-imagine-video",
  "reserved_credits": 20,
  "final_credits": 0,
  "settlement_status": "RESERVED",
  "created_at": "2026-05-11T00:00:00.000Z",
  "updated_at": "2026-05-11T00:00:00.000Z",
  "result": null,
  "error": null
}

Common errors

validation_failed, insufficient_credits, idempotency_conflict, rate_limited, not_found

Some modes require Files API reference uploads.

Grok Imagine Video 1.5 Preview API Integration