The Grok Imagine 1.0 Video API turns text or up to seven reference images into a 6 to 30 second clip at 480p or 720p. One endpoint covers text-to-video and image-to-video with five aspect ratios.
≤ 10000 chars · required when image_urls is empty
Default 16:9 · ignored when image_urls is set
6 to 30 · default 6
Default 480p
Try one of these prompts
Credit-based — 1 credit = $0.001 USD. Pay only for completed generations.
One 5-second sample at the cheapest tier.
Grok Imagine 1.0 Video is xAI's video model, exposed on reAPI as one async endpoint that switches between text-to-video and image-to-video based on how many reference images you send (0 to 7). Clips run 6 to 30 seconds at 480p or 720p, with five aspect ratios (16:9, 9:16, 1:1, 3:2, 2:3) in text mode and prompts up to 4,000 characters. The per-second rate is flat — 720p costs the same as 480p — so the bill scales only with duration.
Real-world workflows and production use cases you can build and ship with this model.
Pass one reference image and a motion prompt. The Grok Imagine 1.0 Video API returns a 6 to 30 second clip from the same endpoint as your text-to-video calls — no model swap. The output aspect ratio matches the source image automatically.
Generate a clipSend up to seven reference images alongside a prompt and the Grok Imagine 1.0 Video API fuses subject, style, and props into a brand-new motion shot — character reskins, product spots, multi-style social posts, all in one request.
Describe the scene, pick an aspect ratio, and the Grok Imagine 1.0 Video API returns a clip with coherent motion and lighting. 480p and 720p share the same per-second rate, so quality choice never surprises you on the bill.
The Grok Imagine 1.0 Video API picks its mode from the count of image_urls you send. Zero gives you text-to-video, 1 to 7 gives image-to-video — all on the same /api/v1/videos/generations call, with the same authentication and the same task polling pattern.
The Grok Imagine 1.0 Video API charges the same per-second rate at 480p and 720p — pick HD whenever you need it without re-doing the math. Bill scales linearly with duration, and failed jobs refund automatically.
Supply between one and seven references on a single Grok Imagine 1.0 Video API request. Use the first as a starting frame, the rest as style and subject guidance — no separate stitching or fine-tune step required.
Sign up and grab a key from the dashboard. Free credits cover your first Grok Imagine 1.0 Video API calls — no card required.
OpenPOST to /api/v1/videos/generations with model = grok-imagine-1.0-video. The Grok Imagine 1.0 Video API returns a task ID immediately so your worker can move on.
OpenGET /api/v1/tasks/:id until status is completed. Download the Grok Imagine 1.0 Video API output and ship it.
Opencurl -X POST https://reapi.ai/api/v1/videos/generations \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "grok-imagine-1.0-video",
"prompt": "A dog running on a sunlit beach, slow-motion",
"size": "16:9",
"duration": 6,
"quality": "720p"
}'Rejected synchronously with the failing field named. Check enum values, ranges, and URL fields — nothing is charged.
401 means a missing or invalid Bearer key; 402 means the reserve exceeds your balance. Manage keys and credits in the console.
Reference material and outputs pass automated moderation. Rejected tasks fail with a clear error and a full refund.
A task that reaches a failed state is never charged — the reserve refunds automatically. Keep the task id and retry when ready.
Common questions about this model.
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