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Grok Imagine Video 1.5 Lite Image to Video API

Name: Grok Imagine Video 1.5 Lite API
Brand: xAI
SKU: xai/grok-imagine-video-1.5-lite
Availability: InStock

Image to Video with Grok Imagine Video 1.5 Lite by xAI. The lowest-cost Grok video — native audio from cents a second.

xai/grok-imagine-video-1.5-lite/image-to-video

FromUp to −27%

$0.015/s$0.02

per second of video · 480p

With Max: from $0.014/s →Operational100% uptime (30 days)median 53s

Create with Grok Imagine Video 1.5 Lite Get API key

API docs →Compare models →

Try Grok Imagine Video 1.5 Lite Image to Video

Prompt*

First frame*

Image used as the opening frame; the clip keeps its shape. JPG/PNG/WebP, URL or upload.

Aspect ratio

Matches first frame

Not used here: the video keeps the first frame's aspect ratio.

Resolution

Output resolution. Higher resolutions cost more per second.

Duration

Length of the generated clip in seconds (1–15s). You pay per second.

Estimated cost…

Create a free account with Google or email — pay only for what you generate.

Your video will appear here

Write a prompt, pick your settings and hit Run. You only pay for successful generations.

Also available: Grok Imagine Video 1.5 Lite Text to Video

See the Grok Imagine Video 1.5 Lite examples and prompts

Grok Imagine Video 1.5 Lite Image to Video API

POST/api/v1/run/xai/grok-imagine-video-1.5-lite/image-to-video

Submits an asynchronous job and returns 202 with a generation id. Poll GET /api/v1/generations/{id} or pass webhook_url. See job lifecycle.

Input parameters

Name	Type	Description	Affects price
`prompt`required	string	Describe the shot: subject, action, camera movement, lighting and style.	No
`image_url`required	string (URL)	Image used as the opening frame; the clip keeps its shape. JPG/PNG/WebP, URL or upload.	No
`resolution`	string (enum)	Output resolution. Higher resolutions cost more per second. Values: 480p · 720p · 1080p Default: 720p	Yes
`duration`	integer	Length of the generated clip in seconds (1–15s). You pay per second. Range: 1–15s Default: 8	Yes
`webhook_url`	string (URL)	Optional. We POST the finished generation here, signed with your webhook secret. Webhooks	No

Request

const API = "https://cheapergen.com/api/v1";
const headers = {
  Authorization: `Bearer ${process.env.CHEAPERGEN_API_KEY}`,
  "Content-Type": "application/json",
};

// 1. Submit the job
let job = await fetch(`${API}/run/xai/grok-imagine-video-1.5-lite/image-to-video`, {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "She turns toward the camera and smiles as the wind moves through her hair, soft café chatter",
    "image_url": "https://cdn.cheapergen.com/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 8
  }),
}).then((r) => r.json());

// 2. Poll until it finishes (or pass webhook_url and skip polling)
while (job.status === "queued" || job.status === "running") {
  await new Promise((r) => setTimeout(r, 3000));
  job = await fetch(`${API}/generations/${job.id}`, { headers }).then((r) => r.json());
}

console.log(job.status === "succeeded" ? job.output.video.url : job.error);

import os, time, requests

API = "https://cheapergen.com/api/v1"
headers = {"Authorization": f"Bearer {os.environ['CHEAPERGEN_API_KEY']}"}

# 1. Submit the job
job = requests.post(f"{API}/run/xai/grok-imagine-video-1.5-lite/image-to-video", headers=headers, json={
    "prompt": "She turns toward the camera and smiles as the wind moves through her hair, soft café chatter",
    "image_url": "https://cdn.cheapergen.com/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 8
}).json()

# 2. Poll until it finishes (or pass "webhook_url" and skip polling)
while job["status"] in ("queued", "running"):
    time.sleep(3)
    job = requests.get(f"{API}/generations/{job['id']}", headers=headers).json()

print(job["status"], job["output"]["video"]["url"] if job["status"] == "succeeded" else job["error"])

curl -X POST https://cheapergen.com/api/v1/run/xai/grok-imagine-video-1.5-lite/image-to-video \
  -H "Authorization: Bearer $CHEAPERGEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "prompt": "She turns toward the camera and smiles as the wind moves through her hair, soft café chatter",
  "image_url": "https://cdn.cheapergen.com/samples/portrait.jpg",
  "resolution": "720p",
  "duration": 8
}'

Response

{
  "id": "gen_8c2QmX1nq0k4",
  "object": "generation",
  "model": "xai/grok-imagine-video-1.5-lite",
  "endpoint": "xai/grok-imagine-video-1.5-lite/image-to-video",
  "mode": "image-to-video",
  "status": "queued",
  "input": {
    "prompt": "She turns toward the camera and smiles as the wind moves through her hair, soft café chatter",
    "image_url": "https://cdn.cheapergen.com/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 8
  },
  "output": null,
  "error": null,
  "cost": {
    "amount_usd": 0.2255,
    "currency": "usd",
    "estimated": true,
    "official_usd": null,
    "list_price_source": "official",
    "list_price_label": "Official",
    "saved_usd": null
  },
  "source": "api",
  "started_at": null,
  "completed_at": null,
  "urls": {
    "get": "https://cheapergen.com/api/v1/generations/gen_8c2QmX1nq0k4",
    "cancel": "https://cheapergen.com/api/v1/generations/gen_8c2QmX1nq0k4/cancel"
  },
  "created_at": "2026-10-15T09:21:04Z"
}

{
  "id": "gen_8c2QmX1nq0k4",
  "object": "generation",
  "model": "xai/grok-imagine-video-1.5-lite",
  "endpoint": "xai/grok-imagine-video-1.5-lite/image-to-video",
  "mode": "image-to-video",
  "status": "succeeded",
  "input": {
    "prompt": "She turns toward the camera and smiles as the wind moves through her hair, soft café chatter",
    "image_url": "https://cdn.cheapergen.com/samples/portrait.jpg",
    "resolution": "720p",
    "duration": 8
  },
  "output": {
    "video": {
      "url": "https://cdn.cheapergen.com/outputs/gen_8c2Q.mp4",
      "content_type": "video/mp4"
    }
  },
  "error": null,
  "cost": {
    "amount_usd": 0.2255,
    "currency": "usd",
    "estimated": false,
    "official_usd": 0.264,
    "list_price_source": "official",
    "list_price_label": "Official",
    "saved_usd": 0.0385
  },
  "source": "api",
  "created_at": "2026-10-15T09:21:04Z",
  "started_at": "2026-10-15T09:21:06Z",
  "completed_at": "2026-10-15T09:22:31Z"
}

Grok Imagine Video 1.5 Lite pricing

Pay per second of video as you go, with no subscription required. Failed generations are refunded automatically.

Tier	Official price	CheaperGen	You save
480p audio included	~~$0.02~~/s	$0.0146/s With a monthly plan: Pro $0.0139Max $0.0133	−27%
720p audio included	~~$0.03~~/s	$0.0219/s With a monthly plan: Pro $0.0209Max $0.0199	−27%
1080p audio included	~~$0.14~~/s	$0.1021/s With a monthly plan: Pro $0.0973Max $0.0925	−27%

Monthly plans lower prices on most models (shown under each price); you can still pay as you go. Pro $499/month · Max $4,999/month.

Official price: xAI API list price for grok-imagine-video-1.5-lite ($0.02 / s at 480p, $0.03 at 720p, $0.14 at 1080p; $0.01 per input image). Prices verified October 18, 2026.
Image to video adds $0.01 for the first frame (before our discount).