LTX-2 19B (T2V+Audio)
LTX-2 19B (T2V+Audio) costs $0.240/clip on FairStack — a text to video model for Video with audio needed, Single-pass video+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.
What is LTX-2 19B (T2V+Audio)?
LTX-2 19B T2V is Lightricks' large-scale text-to-video model with 19 billion parameters, one of the largest video generation models available. Its distinguishing feature is integrated audio generation: the model can produce both video and synchronized audio in a single pass, eliminating the need for separate audio generation or manual sound design for basic use cases. At $0.20 per generation, it offers good value considering the dual video-plus-audio output. The 19B parameter count gives the model significant capacity for understanding complex prompts and generating detailed scenes. Generation times are longer than smaller models due to the parameter count, but the output quality benefits from the additional model capacity. Compared to standard video models that produce silent output requiring separate audio work, LTX-2 19B saves a full production step. Against other audio-capable models like Veo 3 T2V, LTX-2 19B offers a more affordable flat-rate pricing structure. The model is best suited for video content that needs accompanying audio, single-pass video-plus-audio generation, and workflows where simplifying the production pipeline matters. Available on FairStack at infrastructure cost plus a 20% platform fee.
Key Features
What are LTX-2 19B (T2V+Audio)'s strengths?
What are LTX-2 19B (T2V+Audio)'s limitations?
What is LTX-2 19B (T2V+Audio) best for?
How much does LTX-2 19B (T2V+Audio) cost?
How does LTX-2 19B (T2V+Audio) perform across capabilities?
LTX 2 19B T2V — open-source, decent quality
How do I use the LTX-2 19B (T2V+Audio) API?
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-t2v",
"prompt": "Your prompt here"
}'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-t2v",
"prompt": "Your prompt here",
},
)
result = response.json()
print(result["url"])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-t2v",
prompt: "Your prompt here",
}),
}
);
const result = await response.json();
console.log(result.url);What parameters does LTX-2 19B (T2V+Audio) support?
Frequently Asked Questions
How much does LTX-2 19B (T2V+Audio) cost?
LTX-2 19B (T2V+Audio) 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 (T2V+Audio) and what is it best for?
LTX-2 19B T2V is Lightricks' large-scale text-to-video model with 19 billion parameters, one of the largest video generation models available. Its distinguishing feature is integrated audio generation: the model can produce both video and synchronized audio in a single pass, eliminating the need for separate audio generation or manual sound design for basic use cases. At $0.20 per generation, it offers good value considering the dual video-plus-audio output. The 19B parameter count gives the model significant capacity for understanding complex prompts and generating detailed scenes. Generation times are longer than smaller models due to the parameter count, but the output quality benefits from the additional model capacity. Compared to standard video models that produce silent output requiring separate audio work, LTX-2 19B saves a full production step. Against other audio-capable models like Veo 3 T2V, LTX-2 19B offers a more affordable flat-rate pricing structure. The model is best suited for video content that needs accompanying audio, single-pass video-plus-audio generation, and workflows where simplifying the production pipeline matters. Available on FairStack at infrastructure cost plus a 20% platform fee. LTX-2 19B (T2V+Audio) is best for Video with audio needed, Single-pass video+audio. Available via FairStack's REST API with curl, Python, and Node.js SDKs.
Does LTX-2 19B (T2V+Audio) have an API?
Yes. LTX-2 19B (T2V+Audio) 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 (T2V+Audio) compare to other video models?
LTX-2 19B (T2V+Audio) excels at Video with audio needed, Single-pass video+audio. It is a text to video model priced at $0.240/clip on FairStack. Key strengths: Audio+video in one generation, Large model capacity. Compare all video models at fairstack.ai/models.
What makes LTX-2 19B (T2V+Audio) stand out from other video models?
LTX-2 19B (T2V+Audio) is distinguished by audio+video in one generation and large model capacity. Generation typically completes in 5-15 seconds.
What are the known limitations of LTX-2 19B (T2V+Audio)?
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 (T2V+Audio)?
LTX-2 19B (T2V+Audio) 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 (T2V+Audio) offer?
LTX-2 19B (T2V+Audio) offers: 19b parameter model; integrated audio generation; combined video+audio output. All capabilities are accessible through both the FairStack web interface and REST API.
Start using LTX-2 19B (T2V+Audio) today
$0.240/clip. Full API access. No subscription.
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