LTX-2.5 Fast

Text-to-Video • lightricks

lightricks/ltx-2-5-fast

• Third-party

Lightricks LTX-2.5 Fast is a fast video generation model for text-to-video and image-to-video workflows, with synchronized audio, configurable duration, resolution, and frame rate.

Usage

const response = await env.AI.run(
  'lightricks/ltx-2-5-fast',
  {
    prompt: 'A cinematic aerial shot of ocean waves at sunset',
    duration: 8,
    resolution: '1920x1080',
    fps: 24,
    generate_audio: true,
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "lightricks/ltx-2-5-fast",
  "input": {
    "prompt": "A cinematic aerial shot of ocean waves at sunset",
    "duration": 8,
    "resolution": "1920x1080",
    "fps": 24,
    "generate_audio": true
  }
}'

{
  "state": "Completed",
  "result": {
    "video": "https://examples.aig.cloudflare.com/lightricks/ltx-2-5-fast/text-to-video.mp4"
  },
  "gatewayMetadata": {
    "keySource": "Unified"
  }
}

Examples

<details>

<summary>Image-to-Video — Animate a reference image with a final frame</summary>

const response = await env.AI.run(
  'lightricks/ltx-2-5-fast',
  {
    prompt: 'The camera moves forward while the trees sway in the wind',
    image_uri:
      'https://upload.wikimedia.org/wikipedia/commons/8/85/Tour_Eiffel_Wikimedia_Commons_%28cropped%29.jpg',
    last_frame_uri:
      'https://upload.wikimedia.org/wikipedia/commons/8/85/Tour_Eiffel_Wikimedia_Commons_%28cropped%29.jpg',
    duration: 8,
    resolution: '1920x1080',
    fps: 24,
    generate_audio: true,
  },
)
console.log(response)

curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run \
  --header "Authorization: Bearer $CLOUDFLARE_API_TOKEN" \
  --header "Content-Type: application/json" \
  --data '{
  "model": "lightricks/ltx-2-5-fast",
  "input": {
    "prompt": "The camera moves forward while the trees sway in the wind",
    "image_uri": "https://upload.wikimedia.org/wikipedia/commons/8/85/Tour_Eiffel_Wikimedia_Commons_%28cropped%29.jpg",
    "last_frame_uri": "https://upload.wikimedia.org/wikipedia/commons/8/85/Tour_Eiffel_Wikimedia_Commons_%28cropped%29.jpg",
    "duration": 8,
    "resolution": "1920x1080",
    "fps": 24,
    "generate_audio": true
  }
}'

{
  "state": "Completed",
  "result": {
    "video": "https://examples.aig.cloudflare.com/lightricks/ltx-2-5-fast/image-to-video.mp4"
  },
  "gatewayMetadata": {
    "keySource": "Unified"
  }
}

</details>

Parameters

prompt

stringrequiredminLength: 1maxLength: 10000Text prompt describing the video

image_uri

stringformat: uriHTTPS URI for the first frame

last_frame_uri

stringformat: uriHTTPS URI for the last frame

▶duration

one ofrequired

resolution

stringrequireddefault: 1920x1080enum: 1280x720, 720x1280, 1920x1080, 1080x1920, 2560x1440, 1440x2560, 3840x2160, 2160x3840

▶fps

one ofrequired

generate_audio

booleanrequireddefault: true

video

stringformat: uriURL to the generated video

API Schemas (Raw)

Input Open Download

Output Open Download

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