LTXV 2 Fast overview
LTXV 2 Fast by LTXV
It offers exceptional speed for rapid video iterations without compromising visual quality, enabling users to produce sharp, realistic clips quickly.
LTXV 2 Fast specs
- Model ID
ltxv-2/fast- Developer
- LTXV
- Input
- Text
- Output
- Video
- Endpoint
POST https://api.aimlapi.com/v2/video/generations
What Is LTXV 2 Fast?
LTXV 2 Fast is a performance-optimized variant of the LTXV 2 video generation family, built for speed, responsiveness, and scalability. While the core LTXV 2 model emphasizes cinematic quality and deep creative control, LTXV 2 Fast is engineered for scenarios where low latency and rapid iteration matter most. It enables near-real-time video generation from text or images, making it ideal for high-volume production, interactive applications, and fast-paced creative workflows.
How LTXV 2 Fast Works
LTXV 2 Fast uses a streamlined inference pipeline and optimized temporal modeling to reduce compute overhead without sacrificing visual consistency. Instead of focusing on long, highly detailed cinematic shots, the model prioritizes short-to-medium video clips, fast scene assembly, and stable motion generation. This makes it especially suitable for real-time previews, iterative content testing, and automated video pipelines.
Fast Prompt-Driven Video Creation
The Text-to-Video mode in LTXV 2 Fast converts written prompts into animated video sequences with minimal delay. Users can describe scenes, actions, environments, or moods, and the model rapidly constructs a coherent video that reflects the semantic intent of the text. This mode is optimized for speed, allowing creators to test multiple ideas quickly or generate large volumes of short clips from prompt variations.
Instant Motion from Static Visuals
Image-to-Video mode allows users to upload a single image and transform it into a moving video sequence almost instantly. LTXV 2 Fast analyzes depth, structure, and visual context to generate natural motion, subtle camera movement, and temporal continuity. The model preserves the core composition of the original image while adding dynamic elements that feel fluid rather than artificial.
Practical Use Cases
LTXV 2 Fast is widely applicable across industries that require fast video generation. Marketing teams use it for rapid ad variations and A/B testing. Social media platforms rely on it to generate short-form video content at scale. Developers integrate it into interactive applications, creative assistants, and user-generated content tools. It is also well suited for real-time previews in creative software, where immediate feedback improves workflow efficiency.
Comparison with Other Models
vs Sora 2: LTXV 2 Fast generates 4K videos with synchronized audio in up to 50 FPS, producing 6-second Full HD videos in about 5 seconds, significantly faster than Sora 2’s typical 1-2 minute generation time.
vs Veo 3.1: Both models support synchronized audio-video generation with high-resolution outputs, but LTXV 2 Fast emphasizes rapid short-clip generation with consumer GPU accessibility and cost efficiency.
vs. Kling 2.5 Turbo Pro: Kling 2.5 Turbo Pro specializes in cinematic storytelling with enhanced motion and camera controls but generally has slower inference speeds. LTXV 2 Fast focuses on fast iteration capabilities and integrated audio generation, making it suitable for quick prototyping and marketing content.
Use cases
- Content Creation: Quickly generate marketing videos, social media clips, and promotional content using text or image prompts.
- Creative Prototyping: Rapidly visualize concepts with detailed video outputs that include motion and audio.
- Virtual Production: Support for multi-scene storytelling with coherent audio-visual synchronization.
- Multimedia Advertising: Create engaging video ads optimized for various platforms with scalable resolution options.
- Educational & Training Videos: Produce instructional clips with clear visual/audio synchronization from simple text descriptions.
LTXV 2 Fast API pricing
| Usage | Price | Unit |
|---|---|---|
| Video generation | $0.04 | per second |
| Additional | $0.208 | per /sec |
The final price depends on request parameters such as resolution or duration.
Prices from the AI/ML API price list, checked on Nov 4, 2026.
LTXV 2 Fast vs other video models: prices
AI/ML API rates for 5 models, per second.
| Model | Per second |
|---|---|
 LTXV 2 Fast | $0.04 |
 MiniMax H3 Highspeed | $0.04 |
 Wan 3.0 Video | $0.05 |
 Grok Imagine Video | $0.05 |
| LTXV 2 | $0.06 |
How to use the LTXV 2 Fast API
View docs
Build with your agent
Give your agent the model details, code and documentation.
1Get your API key
Create API keyexport AIMLAPI_KEY="8f2b4c7d9a1e6b3f…"2Make your first request
curl 'https://api.aimlapi.com/v2/video/generations' \
-H "Authorization: Bearer $AIMLAPI_KEY" \
-H 'Content-Type: application/json' \
-d '{
"model": "ltxv-2/fast",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}'import os
import requests
headers = {
"Authorization": f"Bearer {os.environ['AIMLAPI_KEY']}",
"Content-Type": "application/json",
}
payload = {
"model": "ltxv-2/fast",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}
response = requests.post("https://api.aimlapi.com/v2/video/generations", headers=headers, json=payload, timeout=120)
response.raise_for_status()
print(response.json())const response = await fetch("https://api.aimlapi.com/v2/video/generations", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"model": "ltxv-2/fast",
"prompt": "A slow dolly shot through a sunlit greenhouse full of ferns, light dust in the air, natural camera motion"
}),
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
console.log(await response.json());The request returns a generation id. Poll GET https://api.aimlapi.com/v2/video/generations?generation_id=<id> until the status is completed.
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LTXV 2 Fast FAQ
What inputs and outputs does LTXV 2 Fast support?
LTXV 2 Fast takes image, text as input and returns video.
How much does LTXV 2 Fast cost?
LTXV 2 Fast costs $0.04 per second on AI/ML API, billed as you go with no subscription.
How is LTXV 2 Fast billed?
LTXV 2 Fast costs $0.04 per second on AI/ML API, billed as you go with no subscription.
Can LTXV 2 Fast take an existing image as input?
Yes, LTXV 2 Fast accepts image input as well as a text prompt.
Who created LTXV 2 Fast?
LTXV 2 Fast was built by LTXV.
How do I call LTXV 2 Fast on AI/ML API?
Send a request to v2/video/generations with ltxv-2/fast as the model id.
Is LTXV 2 Fast available through a single API key?
Yes. LTXV 2 Fast is served through AI/ML API, so the same key and endpoint format used for other models applies.
Is LTXV 2 Fast designed for faster video generation compared to other models?
Yes, it is built to generate videos more quickly while still supporting multiple resolutions and frame rates.
What is the LTXV 2 Fast model ID?
Use ltxv-2/fast as the model parameter. Requests go to https://api.aimlapi.com/v2/video/generations with your AI/ML API key.