Grok Imagine Video 1.5 (async): duration is any integer 4-15 seconds, resolution 480P / 720P, size 16:9 / 9:16 / 1:1 / 4:3 / 3:4; include image for image-to-video (up to 7 references; 2 or more caps the clip at 10 seconds). Returns a job id (HTTP 202); poll GET /v1/videos/jobs/{id} until status=succeeded, result in data[0].url. Billed PER CLIP: 480P $0.30 / 720P $0.40 (default 720P); within a tier the shortest and the longest clip cost the same. Fully refunded on failure.
Try in Playground →Authentication
Authorization: Bearer YOUR_API_KEY Content-Type: application/json
Create an API Key in the console to start.
Request body
| Parameter | Type | Required | Description |
|---|---|---|---|
| model | string | Yes | Model ID, here grok-imagine-video-1.5. |
| prompt | string | Yes | Text prompt describing the video, camera and motion. Max 5000 bytes (UTF-8; a Chinese character counts as 3). |
| duration | integer | No | Length in seconds, any integer 4-15 (default 15, i.e. the longest -- billed PER CLIP, so length does not change the price); alias seconds. With 2 or more reference images the cap drops to 10 seconds. |
| resolution | string | No | Resolution: 480P $0.30 / 720P $0.40 (default 720P). Price follows the resolution, not the length. |
| size | string | No | Aspect ratio: 16:9 / 9:16 / 1:1 / 4:3 / 3:4 (default 16:9); alias aspect_ratio. 21:9 is not available on this model. |
| image | string | No | Image-to-video: include a reference image (public URL, data: URI or base64); omit for text-to-video. |
| images | array | No | Multiple reference images, up to 7. Exceeding the cap is rejected, never truncated. Alias: reference_images. |
Request example
# 1) submit -> 202 {"id":"img_...","status":"queued"}
curl https://nezhagate.com/v1/videos/generations -H 'Authorization: Bearer YOUR_API_KEY' -H 'Content-Type: application/json' -d '{"model": "grok-imagine-video-1.5", "prompt": "a paper crane unfolding over a misty lake", "duration": 15, "resolution": "720P", "size": "16:9"}'
# image-to-video: also pass "image": "https://example.com/ref.png"
# 2) poll every ~5s until status=succeeded, then read data[0].url
curl https://nezhagate.com/v1/videos/jobs/img_3f9a...c2 -H 'Authorization: Bearer YOUR_API_KEY'Response
{
"id": "img_3f9a...c2",
"object": "video.generation.job",
"status": "queued",
"model": "grok-imagine-video-1.5"
}Async video job (submit → poll)
One model; params pick the type: tier=lite/fast/quality, resolution=720p/1080p/4k (1080p/4k need quality), size=16:9/9:16, duration=4s/6s/8s; add an image param for image-to-video (first frame). Returns HTTP 202 + a job id; poll until status=succeeded, result in data[0].url (a re-hosted mp4, ~1-2 min).
curl https://nezhagate.com/v1/videos/generations -H 'Authorization: Bearer YOUR_API_KEY' -H 'Content-Type: application/json' -d '{"model": "grok-imagine-video-1.5", "prompt": "a cat surfing at sunset", "tier": "quality", "resolution": "1080p", "size": "16:9", "duration": "8s"}'{ "id": "img_3f9a...c2", "object": "video.generation.job", "status": "queued", "model": "grok-imagine-video-1.5" }curl https://nezhagate.com/v1/videos/jobs/img_3f9a...c2 -H 'Authorization: Bearer YOUR_API_KEY'
{
"id": "img_3f9a...c2",
"object": "video.generation.job",
"status": "succeeded",
"model": "grok-imagine-video-1.5",
"data": [{ "url": "https://img.nezhagate.com/i/9f86d081a8....mp4" }]
}Billed per clip and fully refunded on failure; a failed or timed-out render returns the reserved credits automatically.
Error codes
| Code | Description |
|---|---|
| 401 | API Key missing or invalid |
| 402 | Insufficient balance or Key over quota |
| 400 | Unsupported model or parameter |
| 429 | Upstream rate limit |
| 502 | All upstream routes failed |
