Grok Imagine Video 1.5 Lite: Fast AI Video

Grok Imagine Video 1.5 Lite

Faster, lower-cost Grok Imagine Video 1.5: text-to-video and image-to-video at 480p/720p/1080p, 1-15s clips with native audio

Category
Video
Modality
Text → Video
Context
1-15 сек · 480p-1080p · нативный звук
Released
Oct 2026
Strengths

What it's the best tool for

  • Fast version distilled from Grok Imagine Video 1.5, handy for sweeping through ideas
  • Native audio is generated together with the video
  • Three resolutions: 480p, 720p and 1080p
  • Seven aspect ratios: 16:9, 9:16, 1:1, 4:3, 3:4, 3:2 and 2:3
  • Clips from 1 to 15 seconds from text or from a first frame
Limitations

When to reach for something else

  • Gives up some quality to the full Grok Imagine Video 1.5 in exchange for speed
  • Image input works from a first frame only, there is no last-frame control
  • Video-to-video is not offered in this version, only text and an image as input
  • Clips top out at 15 seconds, so longer scenes need to be stitched together
Sample output

How Grok Imagine Video 1.5 Lite responds

Prompt
A paper boat drifting down a rain-soaked city street at night, neon signs reflected in the puddles, gentle sound of rain
Grok Imagine Video 1.5 Lite
Where teams use it

Four scenarios where it pays for itself

01
Quick trials
Test ideas and prompts on Lite before making the final take on the full version
02
Social clips
Vertical 9:16 clips with sound for Reels, TikTok and Shorts
03
Animating images
An illustration or a product photo as the first frame of a clip
04
Short inserts
One-to-three-second clips for loops, transitions and intros
About model

More about Grok Imagine Video 1.5 Lite

Grok Imagine Video 1.5 Lite: Fast AI Video with Audio from xAI

Grok Imagine Video 1.5 Lite is a faster, lower-cost version distilled from Grok Imagine Video 1.5 by xAI. The model trades some quality for speed, which makes it a good fit where pace matters: idea trials, drafts and high-volume clips. Audio is generated together with the video. Run it in your browser on NetRoom.

What Grok Imagine Video 1.5 Lite can do

Text to video. Describe the scene, the action and the sound, and the model assembles a clip from 1 to 15 seconds long. The one-second lower bound is handy for short loops and inserts.

Image to video. Upload a picture and it becomes the first frame of the clip. It is an easy way to bring an illustration, a product photo or a storyboard frame to life.

Native audio. The sound track is created together with the picture, so there is no need to source ambience or voice separately.

Resolutions and aspect ratios. 480p, 720p and 1080p are available, along with 16:9, 9:16, 1:1, 4:3, 3:4, 3:2 and 2:3. You can get a landscape clip for a website and a vertical one for social feeds from the same idea.

Lite or the full version

Lite bets on speed and lower run cost, while the full model aims for top quality. The full version is available on NetRoom too: Grok Imagine Video. A practical workflow is to find the right scene on Lite and, if needed, re-render the final take on the full model.

Formats and settings

Pick the resolution for the job: 480p for quick trials, 720p for working versions, 1080p for clips that are headed to publication. Match the aspect ratio to the place: 16:9 for a website and YouTube, 9:16 for short vertical feeds, 1:1 and 4:3 for posts, 3:2 and 2:3 for photo-style frames.

How to write the prompt

Describe the scene, the action and the atmosphere, then add the sound in a separate phrase: rain, music, distant voices. Since the model generates audio together with the video, such hints directly shape the result. When animating an image, describe only the motion rather than what is already visible in the frame.

Where it fits

Short ads, clips for Reels, TikTok and Shorts, animating illustrations, scene previsualization and prompt tests. Try Grok Imagine Video 1.5 Lite on NetRoom.

Use Grok Imagine Video 1.5 Lite via the API

The same engine, straight from your code: one key and one balance for text, images, video and sound. Pay only for the requests you make.

curl
curl https://netroom.ai/api/v1/generations \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "x-ai/grok-imagine-video-15-lite", "input": {"prompt": "A cinematic mountain sunrise"}}'

The model id is already in the example. The full parameter reference and prices live in GET /api/v1/models and in the docs.

API documentation Get an API key

Try Grok Imagine Video 1.5 Lite
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