LTX 2.3 Pro Image to Video

POST/v1/run

Ltx 2.3 Pro by Lightricks - animate still images into dynamic videos with AI. Transform photos into cinematic clips with natural motion, camera movement, and optional audio generation.

Request body

Submit an async generation request. The model field selects the model; other fields are model-specific input parameters.

stringmodelrequired

Model identifier. Set to lightricks/ltx-2.3-pro/image-to-video.

Default: lightricks/ltx-2.3-pro/image-to-video

stringpromptrequired

The prompt to use for the generated video

stringimagerequired

The URL of the start image to use for the generated video.

Optional<string>end_image

The URL of the end image to use for the generated video. When provided, generates a transition video between start and end frames.

Optional<string>resolution

The resolution of the generated video

Allowed values: 1080p, 1440p, 2160p

Default: 1080p

Optional<integer>duration

The duration of the generated video in seconds

Allowed values: 6, 8, 10

Default: 6

Optional<boolean>generate_audio

Whether to generate audio for the generated video

Default: true

Optional<string>aspect_ratio

The aspect ratio of the generated image.

Allowed values: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16

Response Schema

The submit endpoint returns a run response. If its status is pending or running, poll GET /v1/run/{id} with the returned opaque ID until it reaches a terminal state.

stringidrequired

Opaque SandBase run identifier. Use it exactly as returned; no prefix is guaranteed.

stringstatusrequired

Current public run status.

Allowed values: pending, running, completed, failed, timeout

Optional<string>model

Public SandBase model name used for this run.

Optional<array<object>>outputs

Present only for completed runs. Each object is capability-specific; inspect the selected model schema for its fields.

Optional<object>error

Present only for failed or timeout runs. Contains a public error type and sanitized message.

Optional<string>error.type

Stable public error category.

Optional<string>error.message

Sanitized error message safe to show to clients.

Optional<object>usage

Usage details when available.

Model capabilities

array<string>capability_tagsrequired

Capabilities declared by the model registry.

Default: image-to-video

stringexecution_moderequired

Execution mode declared by the model registry.

Default: async

# 1. Submit a generation request
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "lightricks/ltx-2.3-pro/image-to-video",
  "prompt": "Periscope-level shot from behind tall grass of two Maasai warriors mid-leap during an adumu jumping dance, bodies fully airborne against a golden savanna sunset, red shuka robes frozen in motion, dust kicked up from the earth catching backlight, 85mm f/1.4 isolating the pair from a blurred circle of onlookers, Steve McCurry meets Emmanuel Lubezki",
  "image": "https://static.sandbase.ai/examples/lightricks/ltx-2.3-pro/image-to-video/input_image_0.png",
  "duration": 6,
  "aspect_ratio": "21:9"
}'

# 2. If the response is still running, poll the returned id
curl https://api.sandbase.ai/v1/run/f3d2e8a1-7c4b-4a12-9d2e-123456789abc \
  -H "Authorization: Bearer $SANDBASE_API_KEY"

Response202 Accepted

{
  "id": "f3d2e8a1-7c4b-4a12-9d2e-123456789abc",
  "model": "lightricks/ltx-2.3-pro/image-to-video",
  "status": "running"
}