Grok Imagine Video 1.5 API
Grok Imagine Video 1.5 is xAI's first live video route on OmniaKey: it renders text-to-video and image-to-video clips through the same asynchronous media API, priced per second of output instead of per call.
- Model ID
- grok-imagine-video-1.5
- Provider
- xAI
- Modality
- AI Video
- Per second of output
- $1.00
- Last verified
- 2026-09-12
01
Where it fits
Pick Grok Imagine Video 1.5 when you need a short clip from a prompt or a single first frame and want the cost to scale with clip length; watch the Wan 3, Seedance, Kling, Veo, and Runway routes when you need longer or higher-fidelity output.
02
What it does
Text to video
Generate a short video clip from a text prompt.
Image to video
Animate a still image into a short video clip.
03
Call it
Media models run asynchronously. Create a task, poll it until it finishes, then download the signed asset URL.
# 1. Create the job. 202 Accepted; the body carries the task id,
# the pre-charged price, and a poll_url. Reuse one Idempotency-Key
# across retries so a timeout never starts a second paid job.
curl --fail-with-body https://api.omniakey.com/v1/media/tasks \
-H "Authorization: Bearer $OMNIAKEY_API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: grok-imagine-video-1.5-001" \
-d '{
"model": "grok-imagine-video-1.5",
"type": "video",
"operation": "text_to_video",
"input": {"prompt": "a paper boat on a quiet lake at sunset"},
"parameters": {"duration": 6, "resolution": "720p"}
}'
# 2. Image-to-video: same route, same poll loop. Set operation to
# "image_to_video" and pass the first frame in input.image_urls:
# {"prompt": "...", "image_urls": ["https://example.com/first-frame.png"]}
# A public HTTPS URL or a base64 data URI both work.
# 3. Poll GET /v1/media/tasks/{id} until status is
# succeeded | failed | canceled. Progress carries percent and stage.
curl --fail-with-body https://api.omniakey.com/v1/media/tasks/TASK_ID \
-H "Authorization: Bearer $OMNIAKEY_API_KEY"
# 4. Download assets[0].url before expires_at, or poll again for a
# fresh signed URL. Failed and canceled jobs are refunded.
curl -sS -o out.mp4 "$(jq -r '.assets[0].url' result.json)"04
Pricing
Video jobs are billed per second of rendered output, not per token. Failed or canceled jobs are refunded automatically.
$1.00per second
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Frequently asked questions
How do I call Grok Imagine Video 1.5 on OmniaKey?
POST to /v1/media/tasks with the model id, type "video", and operation "text_to_video" — or "image_to_video" with a first frame in input.image_urls. Reuse one Idempotency-Key across retries so a timeout never starts a second paid job.
What does Grok Imagine Video 1.5 cost?
Grok Imagine Video 1.5 bills $1.00 per second of rendered video. Creation pre-charges the requested duration up front from your prepaid balance, and failed or canceled jobs are refunded automatically.
Why does the API return a task id instead of the video?
Video renders take from about a minute to several minutes, so OmniaKey runs every video route through one asynchronous lifecycle. Poll GET /v1/media/tasks/{id} until the status is succeeded, then read the signed asset URL.