Model API

LTX 2.5 Fast

Generate a video with synchronized sound from a text prompt.

Model id

Use this in every request

lightricks/ltx-2.5/text-to-video/fast

This model has other modes with their own ids: lightricks/ltx-2.5/image-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": "lightricks/ltx-2.5/text-to-video/fast",
  "input": {
    "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": "lightricks/ltx-2.5/text-to-video/fast", "quote_id": "QUOTE_ID", "input": {"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 lightricks/ltx-2.5/text-to-video/fast
Name	Type	Description
`prompt`required	string	The prompt to use for the generated video
`duration`	enum	The duration of the generated video in seconds. At 720p and 1080p, 24 or 25 FPS supports up to 20 seconds, while 48 or 50 FPS supports up to 10 seconds. At 1440p and 2160p, all frame rates support up to 10 seconds. Set to 'auto' to let the model choose the duration automatically. Default: `auto` One of: `6`, `8`, `10`, `12`, `14`, `16`, `18`, `20`, `auto`
`resolution`	string (enum)	The resolution of the generated video. Default: `1080p` One of: `720p`, `1080p`, `1440p`, `2160p`
`aspect_ratio`	string (enum)	The aspect ratio of the generated video Default: `16:9` One of: `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`
`camera_motion`	string (enum)	Optional camera motion applied to the generated video. One of: `dolly_in`, `dolly_out`, `dolly_left`, `dolly_right`, `jib_up`, `jib_down`, `static`, `focus_shift`

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

720p$0.1427/ second
1080p$0.206/ second
1440p$0.3011/ second
2160p$0.4754/ second

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