Skip to main content
Video Image to Video fal.ai

LTX-2 19B I2V

LTX-2 19B I2V costs $0.240/clip on FairStack — a image to video model for Image animation with audio, Single-pass I2V+audio. No subscription required. Pay per generation with full REST API access. FairStack applies a transparent 20% margin on infrastructure cost so you always see the real price.

FairStack price
$0.240/clip

What is LTX-2 19B I2V?

LTX-2 19B I2V is Lightricks' large-scale image-to-video model with 19 billion parameters and optional integrated audio generation. The model animates still images into video with the quality advantages of a very large parameter count, and can additionally produce synchronized audio in the same generation pass. At $0.20 per generation, it offers good value considering both the large model capacity and the dual video-plus-audio capability. The 19B parameter count enables strong source image interpretation and detailed animation generation. When audio is enabled, the model produces contextually appropriate sound effects and ambient audio synchronized to the visual content. Compared to standard I2V models that produce silent output, LTX-2 19B saves a separate audio generation step. Against other I2V models at similar price points like Hailuo 02 Standard, the audio capability adds significant production value. The large parameter count also gives it an edge in detailed scene animation. Best suited for image animation with integrated audio needs and single-pass I2V-plus-audio workflows where reducing production steps matters. Available on FairStack at infrastructure cost plus a 20% platform fee.

Key Features

19B parameters
Optional audio
Image animation

What are LTX-2 19B I2V's strengths?

Audio+video capability
Large model capacity

What are LTX-2 19B I2V's limitations?

$0.20 per generation
Slower generation

What is LTX-2 19B I2V best for?

Image animation with audio Single-pass I2V+audio

How much does LTX-2 19B I2V cost?

Metric
FairStack
Details
Price per generation
$0.240
Includes 20% margin
Subscription
None
Pay per generation only

How does LTX-2 19B I2V perform across capabilities?

LTX 2 I2V

motion quality
72%
visual quality
74%
prompt adherence
65%
temporal coherence
72%
character consistency
68%
camera control
60%

How do I use the LTX-2 19B I2V API?

curl
curl -X POST https://api.fairstack.ai/v1/generations/video \
  -H "Authorization: Bearer $FAIRSTACK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "ltx-2-19b-i2v",
    "prompt": "Your prompt here"
  }'
Python
import requests

response = requests.post(
    "https://api.fairstack.ai/v1/generations/video",
    headers={
        "Authorization": f"Bearer {FAIRSTACK_API_KEY}",
        "Content-Type": "application/json",
    },
    json={
        "model": "ltx-2-19b-i2v",
        "prompt": "Your prompt here",
    },
)

result = response.json()
print(result["url"])
Node.js
const response = await fetch(
  "https://api.fairstack.ai/v1/generations/video",
  {
    method: "POST",
    headers: {
      Authorization: `Bearer ${process.env.FAIRSTACK_API_KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      model: "ltx-2-19b-i2v",
      prompt: "Your prompt here",
    }),
  }
);

const result = await response.json();
console.log(result.url);

What parameters does LTX-2 19B I2V support?

Parameter
Type
Default
Details
aspect_ratio
enum
16:9
Options: 16:9, 9:16, 1:1
duration
enum
5
Options: 5, 10
negative_prompt
string (optional)
seed
integer (optional)

Frequently Asked Questions

How much does LTX-2 19B I2V cost?

LTX-2 19B I2V costs $0.240/clip on FairStack as of 2026-05-13. This price includes FairStack's transparent 20% margin on infrastructure cost. No subscription or monthly fee — you pay per generation only. Minimum deposit is $1.

What is LTX-2 19B I2V and what is it best for?

LTX-2 19B I2V is Lightricks' large-scale image-to-video model with 19 billion parameters and optional integrated audio generation. The model animates still images into video with the quality advantages of a very large parameter count, and can additionally produce synchronized audio in the same generation pass. At $0.20 per generation, it offers good value considering both the large model capacity and the dual video-plus-audio capability. The 19B parameter count enables strong source image interpretation and detailed animation generation. When audio is enabled, the model produces contextually appropriate sound effects and ambient audio synchronized to the visual content. Compared to standard I2V models that produce silent output, LTX-2 19B saves a separate audio generation step. Against other I2V models at similar price points like Hailuo 02 Standard, the audio capability adds significant production value. The large parameter count also gives it an edge in detailed scene animation. Best suited for image animation with integrated audio needs and single-pass I2V-plus-audio workflows where reducing production steps matters. Available on FairStack at infrastructure cost plus a 20% platform fee. LTX-2 19B I2V is best for Image animation with audio, Single-pass I2V+audio. Available via FairStack's REST API with curl, Python, and Node.js SDKs.

Does LTX-2 19B I2V have an API?

Yes. LTX-2 19B I2V is available via FairStack's REST API at api.fairstack.ai. Send a POST request to /v1/generations/video with your API key and prompt. Works with curl, Python requests, Node.js fetch, and any HTTP client. No SDK installation required.

How does LTX-2 19B I2V compare to other video models?

LTX-2 19B I2V excels at Image animation with audio, Single-pass I2V+audio. It is a image to video model priced at $0.240/clip on FairStack. Key strengths: Audio+video capability, Large model capacity. Compare all video models at fairstack.ai/models.

What makes LTX-2 19B I2V stand out from other video models?

LTX-2 19B I2V is distinguished by audio+video capability and large model capacity. Generation typically completes in 5-15 seconds.

What are the known limitations of LTX-2 19B I2V?

Key limitations include: $0.20 per generation; slower generation. FairStack documents these transparently so you can choose the right model for your workflow.

How fast is LTX-2 19B I2V?

LTX-2 19B I2V typically completes in 5-15 seconds. This provides a good balance between output quality and processing speed for most production workflows.

What video capabilities does LTX-2 19B I2V offer?

LTX-2 19B I2V offers: 19b parameters; optional audio; image animation. All capabilities are accessible through both the FairStack web interface and REST API.

Start using LTX-2 19B I2V today

$0.240/clip. Full API access. No subscription.

Start Creating