LTX-2 19B LoRA API

Introduction

LTX-2 19B LoRA Image to video animates one photo with up to three of your LoRA files loaded and a soundtrack generated in the same pass. It runs Lightricks' open 19-billion-parameter audio-video model; clips run 5 to 20 seconds at 480p, 720p or 1080p in the photo's own shape.

Choose a mode by starting material

Key features

Camera moves on your photo

The official Dolly In and Dolly Out LoRAs push in or pull back from the photo you send.

Styles redraw the frame

A style LoRA turns your photo into its style as the clip starts; in our test a photograph became cel animation.

Sound included

Every clip has a stereo soundtrack; describe it on an "Audio:" line.

Request parameters

Pricing

Prices are in credits, the same credits you use on the website (1 credit = $0.01). The hold is taken when the task is accepted and settled to the actual charge when it finishes; failed tasks are refunded.

Each task is rounded up to whole credits, so one run at the lowest tier costs 14 credits for a 5-second clip ($0.14).

For an exact number before you run, send the same body to POST /jobs/quote.

Use cases

Reveal shots from stills

Pull back from a portrait to show where it was taken.

Stylised animation of real photos

One style LoRA, a set of photos, a consistent animated look.

Prompt guide & pro tips

Stay in the picture

A prompt about another place can make the clip cut away from your frame.

Camera LoRAs at 1, styles at 0.5

Styles at full strength also change faces and sets.

Use direct, public links

Link to the .safetensors file itself, not the repository page.

API quick start

Call the LTX-2 19B LoRA API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
2. Send the request. POST /jobs/createTask with model lightricks/ltx-2-19b-lora/image-to-video and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "lightricks/ltx-2-19b-lora/image-to-video",
  "input": {
    "prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
    "image_url": "https://media.popnow.ai/influencer/examples/marco.webp",
    "resolution": "720p",
    "duration_seconds": 5
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

LTX-2 19B LoRA API questions

All LTX models

LTX-2.3 LoRA runs the newer 22-billion-parameter model; pick the one your LoRA was trained for.

• LTX 2.5 APILong 20-second takes up to 4K with a soundtrackFrom 68 credits for a 5-second clip
• LTX-2.3 LoRA APILTX-2.3 clips with stereo sound and your own LoRAsFrom 18 credits for a 5-second clip
• LTX-2 19B API20-second clips with voices, music and effectsFrom 11 credits for a 5-second clip
• LTX-2 19B LoRA APILTX-2 clips with sound and your own LoRA stylesFrom 14 credits for a 5-second clip

Other video APIs

• MiniMax H3 APIExpressive clips with audio, up to 2KFrom 28 credits for a 5-second clip
• MiniMax H3 Singularity LoRA APICommunity-tuned H3 video that loads your own LoRAsFrom 45 credits for a 5-second clip
• MiniMax H3 LoRA APIMiniMax H3 video with sound and up to three of your LoRAsFrom 38 credits for a 5-second clip
• Wan 2.2 LoRA APIWan 2.2 video with your LoRAs on either expert passFrom 18 credits for a 5-second clip
• Wan 2.2 5B LoRA APILight 720p Wan 2.2 clips that load your own LoRAsFrom 18 credits per run
• Wan 2.1 LoRA APIWan 2.1 video and edits with your own LoRAs, camera moves includedFrom 36 credits per run

More about LTX-2 19B LoRA

Try it

LTX-2 19B LoRA AI Video Generator onlineCreate videos with LTX-2 19B LoRA in PopNow

Docs

LTX-2 19B LoRA model ID and input schema in the API docsPopNow API quickstart: your first request in five minutesImage to video guide for the PopNow APIWebhooks: get LTX-2 19B LoRA results without polling