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

xAI Grok Imagine Video v1.5 Text to Video example 1

Parameters

NameTypeDefaultConstraintsDescription
prompt *Prompttextarea≤ 5000 charsText description of the desired video.
durationDurationslider61 ~ 15 · step 1Output video duration in seconds.
aspect_ratioAspect Ratioselect16:916:9 | 1:1 | 9:16 | 3:2 | 2:3Aspect ratio of the generated video.
resolutionResolutionselect720p720p | 480p | 1080pOutput 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

ItemDetails
Model NamexAI Grok Imagine Video v1.5 Text to Video
Model TypeText-to-video model
ArchitecturePrompt-driven short-form video generation
InputPrompt
OutputVideo
Output FormatGenerated short-form video
Duration1–15 seconds(default: 6)
Aspect Ratio16:9, 1:1, 9:16, 3:2, 2:3(default: 16:9)
Resolution480p, 720p, 1080p(default: 720p)
FpsNot publicly specified
Control SurfaceScene description, subject motion, camera motion, pacing, and atmosphere via prompt
Best FitShort-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

ResolutionPrice per Second5s Example10s Example15s 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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