LTX-Video 13B API

Name: LTX-Video 13B API - Example AI Video
Uploaded: 2026-08-07
Description: Sample video generated with the LTX-Video 13B API on VideoGenAPI

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Try LTX-Video 13B right now

Explore the interface and see how easy it is to generate videos with LTX-Video 13B. Create an account and pick a plan to start generating.

Playground Demo - LTX-Video 13B

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timer ~70s generation

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LTX-Video 13B

by Lightricks

LTX-Video 13B is the long-form open-source video model from Lightricks. Unlike most models capped at 10 seconds, it generates clips from 1 to 60 seconds from a single text prompt, making it a fit for explainers, extended B-roll and timelapse sequences.

480p • 1-60s • ~70s processing

Gallery

LTX-Video 13B examples

Discover what's possible with LTX-Video 13B AI video generation

Time-lapse of a city skyline from dawn to dusk, clouds streaming past, windows lighting up one by one as night falls

Generated with the LTX-Video 13B API at up to 480p. Results vary with prompt detail and requested duration.

What is the LTX-Video 13B API?

The LTX-Video 13B API is a REST interface that lets developers generate AI videos programmatically using Lightricks's LTX-Video 13B model. It supports text-to-video through a single POST endpoint. VideoGenAPI handles authentication, billing, and provider infrastructure - you only need one API key to start building with the LTX-Video 13B API.

Lightricks

Provider

REST

API protocol

~70s

Avg. generation

How to use the LTX-Video 13B API

Integrate the LTX-Video 13B API in your app in under 5 minutes with these four steps.

1

Create your VideoGenAPI account

Sign up free at VideoGenAPI.com and generate your API key from the dashboard. No Lightricks account needed.
2

Send a request to the LTX-Video 13B API

POST to https://videogenapi.com/api/v1/generate with your API key, model "ltxv-13b", and a text prompt describing your video.
3

Poll for completion

Use the returned generation_id to poll GET /api/v1/status/{id} until the job completes. Video completion webhooks are not available yet.
4

Download your video

Once status is "completed", retrieve the video URL from the response and embed it in your app, website, or workflow.

Get your LTX-Video 13B API key

Documentation

About LTX-Video 13B

info Overview

LTX-Video 13B is the long-form member of the open-source LTX family from Lightricks. Nearly every other video model caps out between 8 and 30 seconds; this one runs to 60, which changes what you can produce in one request rather than assembling clips in an editor. The trade-off is explicit: output is 480p, not 1080p. That makes it the wrong choice for a hero video and the right choice for timelapses, extended B-roll, animatics and any sequence where duration matters more than pixel count. It is text-to-video only, and averages around 70 seconds per generation.

stars Key Strengths

check_circle Up to 60-second clips - the longest single generation available
check_circle Open-source LTX architecture from Lightricks
check_circle Fine-grained 1 to 60 second duration control
check_circle Well suited to timelapses and extended sequences
check_circle Included in VideoGenAPI monthly plans from $29

check_circle Supported Features

Text to Video

settings Specifications

Max Resolution: 480p
Duration Range: 1-60s
Avg. Processing: ~70s

workspace_premium Why LTX-Video 13B via VideoGenAPI?

check_circle
Unified API: Access LTX-Video 13B alongside 18 other models with one API key - no separate Lightricks setup.
check_circle
Per-video pricing: LTX-Video 13B videos count against your monthly plan, from $0.011/video, with no per-second billing.
check_circle
Production-ready: one REST endpoint, status polling, an MCP server for AI agents, and full docs.

Use cases

What you can build with LTX-Video 13B

1

Timelapse sequences

Produce day-to-night and process timelapses in a single generation instead of stitching clips.

2

Animatics and rough cuts

Block out a full 60-second sequence before committing budget to a high-resolution model.

3

Extended B-roll

Generate long atmospheric beds an editor can trim down to whatever the cut needs.

API reference

LTX-Video 13B API documentation

Quick start guide to integrate LTX-Video 13B in your application

code Endpoint

POST https://videogenapi.com/api/v1/generate

tune LTX-Video 13B API parameters

Request parameters accepted by the LTX-Video 13B API on POST /api/v1/generate
Parameter	Type	Required	LTX-Video 13B values
model	string	Yes	`"ltxv-13b"`
prompt	string	Yes	Scene description, up to 1,000 characters.
image_url	string	No	Not supported: LTX-Video 13B is text-to-video only.
duration	integer	No	1 to 60 seconds, up to 15s on every plan.
resolution	string	No	480p, 720p.
aspect_ratio	string	No	16:9, 4:3, 1:1 or 9:16 (text-to-video).
seed	integer	No	Fixed value for reproducible output, -1 for random.
add_audio	boolean	No	Adds an AI sound-effects track when set to true.

Average generation time: ~70s. Poll GET /api/v1/status/{id} with the returned generation_id. Full reference: /docs/generate.

send Request Example

{
  "model": "ltxv-13b",
  "prompt": "Time-lapse of a city skyline from dawn to dusk, clouds streaming past, windows lighting up one by one as night falls",
  "duration": 10,
  "resolution": "480p"
}

download Response Example

{
  "success": true,
  "generation_id": "gen_abc123xyz",
  "status": "in_progress",
  "estimated_time": 70}

integration_instructions Code Examples

const response = await fetch('https://videogenapi.com/api/v1/generate', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer YOUR_API_KEY'
  },
  body: JSON.stringify({
    model: 'ltxv-13b',
    prompt: 'Time-lapse of a city skyline from dawn to dusk, clouds streaming past, windows lighting up one by one as night falls',
    duration: 10  })
});

const data = await response.json();
console.log(data.generation_id);

import requests

response = requests.post(
    'https://videogenapi.com/api/v1/generate',
    headers={
        'Content-Type': 'application/json',
        'Authorization': 'Bearer YOUR_API_KEY'
    },
    json={
        'model': 'ltxv-13b',
        'prompt': 'Time-lapse of a city skyline from dawn to dusk, clouds streaming past, windows lighting up one by one as night falls',
        'duration': 10    }
)

data = response.json()
print(data['generation_id'])

$ch = curl_init('https://videogenapi.com/api/v1/generate');
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    'Content-Type: application/json',
    'Authorization: Bearer YOUR_API_KEY'
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode([
    'model' => 'ltxv-13b',
    'prompt' => 'Time-lapse of a city skyline from dawn to dusk, clouds streaming past, windows lighting up one by one as night falls',
    'duration' => 10]));

$response = curl_exec($ch);
$data = json_decode($response, true);
echo $data['generation_id'];

curl -X POST https://videogenapi.com/api/v1/generate \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
    "model": "ltxv-13b",
    "prompt": "Time-lapse of a city skyline from dawn to dusk, clouds streaming past, windows lighting up one by one as night falls",
    "duration": 10  }'

View Full Documentation arrow_forward

Pricing

LTX-Video 13B API pricing

LTX-Video 13B is billed per video, not per second of output. See the cost calculator for your volume.

$0.011

per LTX-Video 13B video on the Starter plan

LTX-Video 13B API cost per video by VideoGenAPI plan
Plan	Monthly	Videos	Cost / video
Basic	$29	1,500	$0.019
Starter	$49	4,500	$0.011
Unlimited	$199	No cap	Flat

check_circle One API key for LTX-Video 13B and 18 other models
check_circle No Lightricks account required
check_circle Billed per video, never per second of output

Start with the LTX-Video 13B API

Comparison

LTX-Video 13B API vs alternatives

How the LTX-Video 13B API compares on resolution, clip length, generation speed and price. All models below share one API key.

Comparison of the LTX-Video 13B API against alternative AI video generation models on VideoGenAPI
Model	Provider	Max resolution	Clip length	Avg. speed	Price / video
LTX-Video 13B API This page	Lightricks	480p	1-60s	~70s	Included, from $0.011
LTX-2 API	Lightricks	4K	6-10s	~30s	Included, from $0.011
Seedance 2.5 API	ByteDance	1080p	5-30s	~150s	Included, from $0.011
Wan 2.5 API	Alibaba	1080p	5-10s	~50s	Included, from $0.011

Switching between these models means changing the ltxv-13b value in your request body. The endpoint, authentication and status polling stay the same.

Limits

LTX-Video 13B API limitations

Plan duration and resolution caps apply even when the model supports higher output. See pricing.
Jobs are asynchronous: poll GET /api/v1/status/{id}. Video completion webhooks are not available yet.
Rate limits and fair-use throttling are documented on /docs/rate-limits.
Prompts and images that violate the content guidelines are rejected.

Text-to-video API hub Catalogue benchmark Generate endpoint docs

Reviewed by Enzo Lanne · Founder, VideoGenAPI · Updated 7 August 2026

FAQ

LTX-Video 13B API questions

How long can an LTX-Video 13B video be? expand_more

From 1 to 60 seconds. No other model on VideoGenAPI reaches 60 seconds in a single generation; Seedance 2.5 is next at 30 seconds, and most premium models stop at 8 to 10.

What resolution does LTX-Video 13B output? expand_more

480p. This is the explicit trade-off for 60-second duration. If you need 1080p, use Seedance 2.5 for up to 30 seconds, or LTX Video 2 for up to 4K at shorter lengths.

What is the difference between LTX-Video 13B and LTX Video 2? expand_more

Both come from Lightricks but solve opposite problems. LTX-Video 13B maximises duration at 60 seconds and 480p. LTX Video 2 maximises fidelity at up to 4K with audio, over 6 to 10 second clips.

Does LTX-Video 13B support image-to-video? expand_more

No. LTX-Video 13B is text-to-video only. For image-to-video with long output, Seedance 2.5 accepts a reference image and generates up to 30 seconds.

How much does the LTX-Video 13B API cost? expand_more

LTX-Video 13B is included in VideoGenAPI monthly plans from $29, which makes 60-second drafts cheap to iterate on.

How much does one LTX-Video 13B API video cost? expand_more

Each LTX-Video 13B generation counts as one video in your VideoGenAPI plan, whatever its length within plan limits. On Starter ($49/month for 4,500 videos) that is about $0.011 per video, with clips up to 15 seconds. Unlimited ($199/month) removes the monthly cap. Per-second video APIs bill every second of output instead, so a 10-second clip costs ten times a 1-second one.

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