Model API

LTX 2.3 Fast

LTX-2.3 Fast from Lightricks: quick, high-quality video from a text prompt or a starting image.

Model id

Use this in every request

ltx-2.3/image-to-video/fast

This model has other modes with their own ids: ltx-2.3/text-to-video/fast.

Run it

Quote the input, start the generation with the quote, then poll the job. Set RAYWAKE_API_KEY first; see Authentication.

# 1. Price the exact input (quotes are valid for up to 10 minutes)
curl -s https://api.raywake.com/v1/quotes \
  -H "Authorization: Bearer $RAYWAKE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "ltx-2.3/image-to-video/fast",
  "input": {
    "image_url": "https://example.com/input.png",
    "prompt": "A red ceramic cup on a wooden table, soft morning light"
  }
}'

# 2. Start the generation with the quote_id from step 1
curl -s https://api.raywake.com/v1/generate \
  -H "Authorization: Bearer $RAYWAKE_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{"model": "ltx-2.3/image-to-video/fast", "quote_id": "QUOTE_ID", "input": {"image_url":"https://example.com/input.png","prompt":"A red ceramic cup on a wooden table, soft morning light"}}'

# 3. Poll until the status is terminal
curl -s https://api.raywake.com/v1/jobs/JOB_ID \
  -H "Authorization: Bearer $RAYWAKE_API_KEY"

Input

Input fields for ltx-2.3/image-to-video/fast
Name	Type	Description
`image_url`required	string (image URL)	URL of the image to generate the video from. Must be publicly accessible or base64 data URI. Supports PNG, JPEG, WebP, AVIF, and HEIF formats.
`end_image_url`	string (image URL)	The URL of the end image to use for the generated video. When provided, generates a transition video between start and end frames.
`prompt`required	string	The prompt to generate the video from
`duration`	number (enum)	The duration of the generated video in seconds. The fast model supports 6-20 seconds. Note: Durations longer than 10 seconds (12, 14, 16, 18, 20) are only supported with 25 FPS and 1080p resolution. Default: `6` One of: `6`, `8`, `10`, `12`, `14`, `16`, `18`, `20`
`resolution`	string (enum)	The resolution of the generated video Default: `1080p` One of: `1080p`, `1440p`, `2160p`
`aspect_ratio`	string (enum)	The aspect ratio of the generated video Default: `auto` One of: `auto`, `16:9`, `9:16`
`fps`	number (enum)	The frames per second of the generated video Default: `25` One of: `24`, `25`, `48`, `50`
`generate_audio`	boolean	Whether to generate audio for the generated video Default: `true`

Output

A succeeded job lists its results under outputs, stored on our side. See Jobs for every field.

Job excerpt

"outputs": [
  { "type": "video", "url": "https://…", "mime_type": "video/mp4", "thumbnail_url": "https://…" }
]

Pricing

1080p$0.10/ second
1440p$0.20/ second
2160p$0.39/ second

The exact charge for your input comes from a quote. How charges settle