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Video xAI · 2026-02

Grok Imagine 1.0 Video API

xAI video from text or up to 7 images, 6-30 s clips at 480p or 720p

480p$0.0299per second
720p$0.0528per second

Failed generations are not charged. Prices exclude taxes. Billed from your prepaid USD balance.

Exact cost for your settings →

Grok Imagine 1.0 Video is xAI's February 2026 video model. It generates clips from 6 to 30 seconds at 480p or 720p, either from a text prompt or from 1 to 7 reference images. The mode is picked automatically by the number of images you send. Text-to-video supports five aspect ratios (16:9, 9:16, 1:1, 3:2, 2:3); with images, the output ratio follows the reference. Prompts can be up to 4,000 characters, and the default is a 6-second clip at 480p.

Best for

  • Longer 20-30 second clips at modest resolution
  • Turning a set of reference images into one sequence
  • Quick 480p concept videos
  • Vertical 9:16 clips from text

Prompting tips

  • Send duration as a number (for example 12), not as a string.
  • Put the image with the framing you want first, because the output ratio follows the reference.
  • For long clips, describe a sequence of beats so the motion keeps developing.
  • Raise resolution to 720p for anything you publish.

FAQ

How much does Grok Imagine 1.0 Video cost?

The rate is from $0.0299 per second. The estimate is shown before the job starts, and failed generations are not charged.

How long can Grok Imagine 1.0 Video clips be?

Between 6 and 30 seconds.

Does Grok Imagine 1.0 Video support image-to-video?

Yes. Send 1-7 images in image_urls and it switches to image-to-video automatically. For image-to-video with native audio, see Grok Imagine Video 1.5.

How to call Grok Imagine 1.0 Video via API

curl https://jantaris.com/v1/generate?wait=60 \
  -H "Authorization: Bearer $JANTARIS_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "grok-imagine-1.0-video",
  "input": {
    "prompt": "A slow dolly shot through a neon-lit night market in the rain, reflections on wet asphalt, cinematic",
    "aspect_ratio": "16:9",
    "resolution": "480p",
    "duration": 6
  }
}'

Parameters

ParameterTypeAllowedDefault
prompt *string≤ 4000 chars
aspect_ratiostring16:9 9:16 1:1 3:2 2:316:9
resolutionstring480p 720p480p
durationinteger6-306
image_urlstring
image_urlsarraymax 7

The same schema is available from GET /v1/models/grok-imagine-1.0-video.