Grok Imagine Video 1.5 Lite API

Grok Imagine Video 1.5 Lite: 1–15 second videos with synchronized audio, at 480p, 720p or 1080p. Image-to-video follows the source image aspect ratio.

xAI·VideoAvailable

from$0.013/ second

Model IDgrok-imagine-video-1.5-lite

Try in Playground View API

text-to-videoimage-to-videoaudio

Input

Text · Image

Output

Video

Provider

6 providers

Duration (s)

1 – 15

Resolution

480p · 720p · 1080p

Aspect ratio

16:9 · 4:3 · 3:2 · 1:1 · 2:3 · 3:4 · 9:16

Last 7 days · not enough recent requests for stats yet.

Grok Imagine Video 1.5 Lite pricing

Prices are per unit; requests without a provider are routed to the cheapest provider that supports your parameters.

Option	480p	720p	1080p
text only	$0.013 / second 2 Credits	$0.019 / second 2 Credits	$0.088 / second 9 Credits
with input image · duration: 1	$0.019 / request 2 Credits	$0.025 / request 3 Credits	$0.095 / request 10 Credits
with input image · duration: 2	$0.032 / request 4 Credits	$0.044 / request 5 Credits	$0.183 / request 19 Credits
with input image · duration: 3	$0.044 / request 5 Credits	$0.063 / request 7 Credits	$0.271 / request 28 Credits
with input image · duration: 4	$0.057 / request 6 Credits	$0.082 / request 9 Credits	$0.359 / request 36 Credits
with input image · duration: 5	$0.069 / request 7 Credits	$0.101 / request 11 Credits	$0.447 / request 45 Credits
with input image · duration: 6	$0.082 / request 9 Credits	$0.12 / request 12 Credits	$0.535 / request 54 Credits
with input image · duration: 7	$0.095 / request 10 Credits	$0.139 / request 14 Credits	$0.624 / request 63 Credits
with input image · duration: 8	$0.107 / request 11 Credits	$0.158 / request 16 Credits	$0.712 / request 72 Credits
with input image · duration: 9	$0.12 / request 12 Credits	$0.176 / request 18 Credits	$0.8 / request 81 Credits
with input image · duration: 10	$0.132 / request 14 Credits	$0.195 / request 20 Credits	$0.888 / request 89 Credits
with input image · duration: 11	$0.145 / request 15 Credits	$0.214 / request 22 Credits	$0.977 / request 98 Credits
with input image · duration: 12	$0.158 / request 16 Credits	$0.233 / request 24 Credits	$1.065 / request 107 Credits
with input image · duration: 13	$0.17 / request 18 Credits	$0.252 / request 26 Credits	$1.153 / request 116 Credits
with input image · duration: 14	$0.183 / request 19 Credits	$0.271 / request 28 Credits	$1.241 / request 125 Credits
with input image · duration: 15	$0.195 / request 20 Credits	$0.29 / request 29 Credits	$1.329 / request 133 Credits

Try Grok Imagine Video 1.5 Lite before you integrate

Test output quality, compare provider prices and estimate cost before writing any code.

Provider

Video

Estimated cost

Input

Prompt*prompt

0 / 4096

First frameimage_url

Duration (s)duration

Resolutionresolution

Aspect ratioaspect_ratio

Result

Idle

Your generation will appear here.

Provider prices for this request

Enter a prompt to compare provider prices.

Grok Imagine Video 1.5 Lite prompt examples

Ready-to-use prompts. Load one into the playground and tweak it.

Source

Scene

7 prompts

Medieval knight in ornate armor walking through a mystical forest, bioluminescent plan

Medieval knight in ornate armor walking through a mystical forest, bioluminescent plants pulsing with light, ancient stone ruins overgrown with glowing vines, over-the-shoulder camera, dark fantasy aesthetic, volumetric fog and Lumen lighting

A miniature exploration spacecraft drifts slowly through deep space; the camera begins

A miniature exploration spacecraft drifts slowly through deep space; the camera begins at the ship's stern and moves forward at an incredibly slow pace. As the craft emerges from a dense nebula, a massive, ancient black monolith—obscuring the entire starry sky—gradually comes into view, its surface etched with mysterious geometric patterns. Just as the ship draws near, the monolith’s interior suddenly flares with an eerie blue energy; ancient symbols light up in sequence across its surface, and surrounding stardust begins to swirl into a massive vortex. The camera slowly orbits the monolith before pulling back to reveal the human spacecraft appearing as mere specks of dust against this cosmic colossus. Cinematic sci-fi aesthetic, realistic spatial perspective, a sense of immense scale, volumetric lighting, deep black background, fine film grain, 16:9 widescreen composition, smooth and fluid camera movement, and seamless transitions.

Paper boat in the rain

Cinematic

A paper boat drifts down a rain-soaked street at dusk, neon signs reflected in the puddles, low tracking shot following the boat, gentle rain ambience.

Neon street dolly

Social

Slow dolly forward through a rainy neon street at night, steam rising from food stalls, people with umbrellas passing by.

A neon-lit street at night, slow dolly forward through the rain

A neon-lit street at night, slow dolly forward through the rain.

Knight in a glowing forest

Fantasy

Over-the-shoulder shot of an armoured knight walking into a forest of glowing blue mushrooms, drifting fog, dark fantasy atmosphere.

Grok Imagine Video 1.5 Lite API reference

Endpoints, request fields and runnable examples for this model.

Base URL

https://01router.com/api/v1

llms.txt

Quick start

Set API_KEY to your project key, then run a sample from your server. Replace example media URLs with your own public URLs.

Auto-routing chooses a provider that supports the request. Select a provider to see its input constraints and pinned request examples.

curl https://01router.com/api/v1/generations \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'JSON'
{
  "model": "grok-imagine-video-1.5-lite",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }
}
JSON

# Replace GENERATION_ID with the id returned above; poll until status is "succeeded" or "failed"
curl https://01router.com/api/v1/generations/GENERATION_ID -H "Authorization: Bearer $API_KEY"

Endpoints

Only endpoints relevant to this model are listed. Paths below include /api/v1. Click an endpoint to read its usage.

POST

/api/v1/generations

Create a generation (charges credits) · API key required

GET

/api/v1/generations/{id}

Get a generation; polls the provider while running · API key required

POST

/api/v1/generations/{id}/cancel

Cancel a running generation (credits refunded) · API key required

POST

/api/v1/quote

Price a request on every provider (no charge, no key needed) · Public · no key

GET

/api/v1/models/grok-imagine-video-1.5-lite

Get one model · Public · no key

Authentication

Send your API key as a Bearer token. Requests are billed to the key owner's credits.

Authorization: Bearer YOUR_API_KEY
Content-Type: application/json

Get an API key

Input

Send JSON with Content-Type: application/json. Model parameters belong inside input; model, provider and callback_url are top-level fields.

Request body

Name	Type	Required	Description
model	string	Yes	"grok-imagine-video-1.5-lite"
provider	string	No	Pin a provider; omit to auto-route to the cheapest. One of: fal \| 01router \| evolink \| atlascloud \| vercel \| openrouter
input	object	Yes	Model parameters, see the input fields below.
callback_url	string	No	Optional public HTTPS webhook URL. The final task result is signed and delivered here; polling remains available.

input · input fields

Required fields are marked explicitly. Other fields use the listed defaults when omitted.

Name	Type	Required	Values	Default
prompt*	string	Yes	maxLength: 4096	—
image_url Optional start image (image-to-video)	string	No	—	—
duration	integer	No	min: 1 · max: 15	6
resolution	string	No	480p \| 720p \| 1080p	720p
aspect_ratio Text-to-video only; image-to-video follows the source image.	string	No	16:9 \| 4:3 \| 3:2 \| 1:1 \| 2:3 \| 3:4 \| 9:16	16:9

Callbacks →

Output

Creating a task does not mean generation has finished. Keep its id, poll until succeeded or failed, then read outputs or error. Amounts below are illustrative; actual charges depend on the request.

queued→processing→succeeded / failed

Task submitted

{
  "id": "gen_example",
  "object": "generation",
  "model": "grok-imagine-video-1.5-lite",
  "type": "video",
  "provider": "fal",
  "status": "processing",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  },
  "outputs": [],
  "error": null,
  "credits": 0,
  "price_usd": 0,
  "created_at": "2026-10-25T08:00:00.000Z",
  "completed_at": null
}

Task completed

{
  "id": "gen_example",
  "object": "generation",
  "model": "grok-imagine-video-1.5-lite",
  "type": "video",
  "provider": "fal",
  "status": "succeeded",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  },
  "outputs": [
    "https://example.com/output.mp4"
  ],
  "error": null,
  "credits": 0,
  "price_usd": 0,
  "created_at": "2026-10-25T08:00:00.000Z",
  "completed_at": "2026-10-25T08:01:00.000Z"
}

Response fields

Name	Type	Required	Description
id	string	Yes	Generation ID. Use it to query or cancel this task.
object	string	Yes	generation
model	string	Yes	grok-imagine-video-1.5-lite
type	string	Yes	video
provider	string	Yes	Provider
status	string	Yes	queued → processing → succeeded / failed. Stop polling at either terminal state.
input	object	Yes	Model parameters, see the input fields below.
outputs	string[]	Yes	Result URLs. Empty while processing; read after succeeded and save the files promptly.
error	string \| null	Yes	Failure reason, or null when no failure is reported.
credits	number	Yes	Credits charged for this request.
price_usd	number	Yes	Request price in USD.
created_at	string	Yes	Creation time in ISO 8601 format.
completed_at	string \| null	Yes	Completion time in ISO 8601 format; null before completion.

Get the result

Poll every few seconds until status is succeeded or failed. Output URLs are provider-hosted and may expire — download them promptly. Or pass callback_url to get the result pushed.

curl "https://01router.com/api/v1/generations/GENERATION_ID" \
  -H "Authorization: Bearer $API_KEY"

queued → processing → succeeded / failed. Stop polling at either terminal state. Result URLs. Empty while processing; read after succeeded and save the files promptly.

Cancel a task

Cancellation depends on provider support and task state. A confirmed cancellation returns status: failed and error: Canceled by user. Unsupported or completed tasks return 409 not_cancelable.

curl -X POST "https://01router.com/api/v1/generations/GENERATION_ID/cancel" \
  -H "Authorization: Bearer $API_KEY"

Quote

Same body as creating a generation. Returns every available provider sorted by price, plus the ones that cannot serve the request and why.

curl "https://01router.com/api/v1/quote" -H "Content-Type: application/json" --data-binary @- <<'JSON'
{
  "model": "grok-imagine-video-1.5-lite",
  "input": {
    "prompt": "A cinematic shot of a red fox running through snow",
    "duration": 6,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }
}
JSON

Model schema

This public endpoint returns the model parameters and each provider’s supported constraints and prices.

curl "https://01router.com/api/v1/models/grok-imagine-video-1.5-lite"

Errors

Check the HTTP status and error.message. Fix the request before retrying validation or authentication errors. A failed generation is reported in status and error on the task itself.

{
  "error": {
    "message": "Invalid or missing API key",
    "code": "unauthorized"
  }
}

400Invalid body or parameter value

401Missing or invalid API key

402Not enough credits

404Unknown model or generation

409The task cannot be canceled (already finished, or the provider does not support canceling)

429Too many requests — retry after the given seconds

502Every provider rejected the task (credits refunded)

Auth, routing, billing and error codes are covered in →

Use with AI

Give your coding assistant this model reference: endpoints, input constraints, output fields and request examples in plain text.

Open llms.txt

How does Grok Imagine Video 1.5 Lite compare?

Specs and starting prices side by side. Test with the same prompt before you choose.

	Grok Imagine Video 1.5 Lite	Grok Imagine Video 1.5	Seedance 2.5	MiniMax H3 Max
Vendor	xAI	xAI	ByteDance	MiniMax
Starting price	$0.013 / second	$0.011 / second	$0.086 / second	$0.029 / second
Input	Text · Image	Text · Image	Text · Image	Text · Image
Provider	6 providers	10 providers	9 providers	6 providers
Duration (s)	1 – 15	1 – 15	4 – 30	5 – 15
Resolution	480p · 720p · 1080p	480p · 720p · 1080p	480p · 720p · 1080p	480p · 768p · 1080p
Aspect ratio	16:9 · 4:3 · 3:2 · 1:1 · 2:3 · 3:4 · 9:16	16:9 · 4:3 · 3:2 · 1:1 · 2:3 · 3:4 · 9:16	16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9	16:9 · 9:16 · 1:1 · 4:3 · 3:4 · 21:9

Grok Imagine Video 1.5 Lite API FAQ

How is Lite different from Grok Imagine Video 1.5?

Lite is the cheapest model in the family, aimed at drafts, A/B tests and high-volume social content. It accepts at most one image (as the first frame) and its 1080p is upscaled rather than native.

What durations and resolutions are available?

1 to 15 seconds at 480p, 720p or 1080p, with aspect ratios from 16:9 to 9:16.

Does Lite generate audio?

Yes, clips come with generated audio by default.

When should I switch to the full 1.5 model?

Use Lite to find the right prompt and framing, then render the final version with Grok Imagine Video 1.5 when you need native 1080p or better motion detail.

How is it billed on 01router?

Per output second at the chosen resolution, at a fraction of the 1.5 price; see the pricing table. Failed generations are refunded.

Related models

Other models you can call with the same API key.

Video · xAI

Grok Imagine Video 1.5

Grok Imagine Video 1.5: 1–15 second videos with synchronized audio, at 480p, 720p or 1080p. Image-to-video follows the source image aspect ratio.

from $0.011 / secondView API

Video · ByteDance

Seedance 2.5

ByteDance’s flagship video model: up to 30 s in one pass, native synchronized audio, first/last-frame control.

from $0.086 / secondView API

Video · MiniMax

MiniMax H3 Max

MiniMax H3 post-trained by fal for speed: 5–15 s clips with first/last frame, ranked #1 on video arenas.

from $0.029 / secondView API

Video · ByteDance

Seedance 2.0

Multi-shot Seedance generation with synchronized audio and first/last-frame control, 4–15 s.

from $0.053 / secondView API

Video · ByteDance

Seedance 2.0 Mini

Faster, lower-cost Seedance 2.0 for drafts and high-volume generation (480p/720p).

from $0.016 / secondView API

Video · MiniMax

MiniMax H3

MiniMax Hailuo H3 with native 768p and 2K output, 4–15 s, first/last frame.

from $0.036 / secondView API