xAI Grok Imagine Video v1.5 Text to Video
x-ai/grok-imagine-video-v1.5/text-to-video
Generate 1-15 second videos from text prompts at 480p, 720p, or 1080p.
Examples
Parameters
| Name | Type | Default | Constraints | Description |
|---|---|---|---|---|
| prompt *Prompt | textarea | — | ≤ 5000 chars | Text description of the desired video. |
| durationDuration | slider | 6 | 1 ~ 15 · step 1 | Output video duration in seconds. |
| aspect_ratioAspect Ratio | select | 16:9 | 16:9 | 1:1 | 9:16 | 3:2 | 2:3 | Aspect ratio of the generated video. |
| resolutionResolution | select | 720p | 720p | 480p | 1080p | Output video resolution. |
API
Call this model through one unified REST API. Get a key on the API Keys page.
cURL
# 1) Submit — returns { "task_uuid": "..." }
curl -X POST "https://www.namifusion.com/api/v1/marketplace/run/x-ai/grok-imagine-video-v1.5/text-to-video" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"input": {
"prompt": "A cinematic portrait, dramatic rim light, shallow depth of field",
"duration": 6,
"aspect_ratio": "16:9",
"resolution": "720p"
}
}'
# 2) Poll until status is "completed", then read the output URLs
curl "https://www.namifusion.com/api/v1/marketplace/run/tasks/TASK_UUID" \
-H "Authorization: Bearer YOUR_API_KEY"Python
import time, requests
API_KEY = "YOUR_API_KEY"
HEADERS = {"Authorization": f"Bearer {API_KEY}"}
# 1) Submit
resp = requests.post(
"https://www.namifusion.com/api/v1/marketplace/run/x-ai/grok-imagine-video-v1.5/text-to-video",
headers=HEADERS,
json={
"input": {
"prompt": "A cinematic portrait, dramatic rim light, shallow depth of field",
"duration": 6,
"aspect_ratio": "16:9",
"resolution": "720p"
}
},
)
resp.raise_for_status() # 401/402/429/5xx stop here instead of polling a bad task
task = resp.json()
# 2) Poll until a terminal state (completed / failed / cancelled).
# This model is allowed up to 300s server-side.
deadline = time.time() + 360
while task.get("status") not in ("completed", "failed", "cancelled"):
if time.time() > deadline:
raise TimeoutError(f"still {task.get('status')} — keep the task_uuid and poll later")
time.sleep(3)
poll = requests.get(f"https://www.namifusion.com/api/v1/marketplace/run/tasks/{task['task_uuid']}", headers=HEADERS)
poll.raise_for_status()
task = poll.json()
print(task["status"], task.get("output"))JavaScript
const API_KEY = "YOUR_API_KEY";
const HEADERS = { Authorization: `Bearer ${API_KEY}` };
// 1) Submit
const resp = await fetch("https://www.namifusion.com/api/v1/marketplace/run/x-ai/grok-imagine-video-v1.5/text-to-video", {
method: "POST",
headers: { ...HEADERS, "Content-Type": "application/json" },
body: JSON.stringify({
"input": {
"prompt": "A cinematic portrait, dramatic rim light, shallow depth of field",
"duration": 6,
"aspect_ratio": "16:9",
"resolution": "720p"
}
}),
});
if (!resp.ok) throw new Error(`submit failed: ${resp.status} ${await resp.text()}`);
let task = await resp.json();
// 2) Poll until a terminal state (completed / failed / cancelled).
// This model is allowed up to 300s server-side.
const deadline = Date.now() + 360 * 1000;
while (!["completed", "failed", "cancelled"].includes(task.status)) {
if (Date.now() > deadline) throw new Error(`still ${task.status} — keep the task_uuid and poll later`);
await new Promise((r) => setTimeout(r, 3000));
const poll = await fetch(`https://www.namifusion.com/api/v1/marketplace/run/tasks/${task.task_uuid}`, { headers: HEADERS });
if (!poll.ok) throw new Error(`poll failed: ${poll.status}`);
task = await poll.json();
}
console.log(task.status, task.output);Documentation
xAI Grok Imagine Video v1.5 Text to Video
🚀 Key Features
- Prompt-only video generation: Generate videos directly from a text prompt without requiring an input image.
- Motion and camera-aware prompting: Describe subject movement, camera behavior, atmosphere, and scene progression in natural language.
- Flexible output quality: Choose between 480p, 720p, and 1080p depending on budget, iteration speed, and delivery needs.
- Multiple aspect ratios: Supports 16:9, 1:1, 9:16, 3:2, and 2:3 for landscape, square, and vertical publishing formats.
- Optimized for short-form generation: Best suited for 1–15 second clips where quick turnaround and predictable prompt control matter.
🛠️ Technical Specifications
| Item | Details |
|---|---|
| Model Name | xAI Grok Imagine Video v1.5 Text to Video |
| Model Type | Text-to-video model |
| Architecture | Prompt-driven short-form video generation |
| Input | Prompt |
| Output | Video |
| Output Format | Generated short-form video |
| Duration | 1–15 seconds(default: 6) |
| Aspect Ratio | 16:9, 1:1, 9:16, 3:2, 2:3(default: 16:9) |
| Resolution | 480p, 720p, 1080p(default: 720p) |
| Fps | Not publicly specified |
| Control Surface | Scene description, subject motion, camera motion, pacing, and atmosphere via prompt |
| Best Fit | Short-form concept clips, social content, and rapid creative iteration |
Sample Prompts
- A cinematic ocean wave at sunrise, highly detailed, golden light through sea mist, slow forward camera push, dramatic atmosphere.
- A futuristic fashion model walking through a neon-lit city street at night, light rain, reflective pavement, smooth tracking shot.
- A red sports car drifting through a mountain road hairpin, low-angle camera, fast motion blur in the background, intense energy.
💰 Pricing
| Resolution | Price per Second | 5s Example | 10s Example | 15s Example |
|---|---|---|---|---|
| 480p | $0.08 | $0.40 | $0.80 | $1.20 |
| 720p | $0.14 | $0.70 | $1.40 | $2.10 |
| 1080p | $0.25 | $1.25 | $2.50 | $3.75 |
Billing Notes
- Pricing scales linearly with duration and resolution.
- Billed duration is rounded up to the next whole second.
- Minimum billed duration is 1 second.
- Maximum supported duration is 15 seconds.
💡 Best Use Cases
- Social media video creation: Produce vertical, square, or landscape clips for posts, promos, and creator content.
- Concept visualization: Turn written ideas into motion studies, mood clips, or early-stage visual directions.
- Advertising mockups: Create fast animated concepts for campaigns, pitches, and pre-production reviews.
- Creative prototyping: Test prompt-driven motion, pacing, and camera ideas before committing to full production.
🔗 Related Models
- xAI Grok Imagine Video v1.5 Image-to-Video: Animate an existing image into a short video sequence.
- xAI Grok Imagine Video v1.5 Reference-to-Video: Guide generation with up to seven reference images for stronger visual consistency.
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