videostringrequired
The URL of the video to retake
LTX 2.3 Pro Retake
lightricks/ltx-2.3-pro/retakeLtx 2.3 Pro Retake by Lightricks - AI-powered video editing and transformation. Apply style transfer, motion control, lip-sync, and visual effects to existing videos with natural language instructions.
Try the model
Playground
Input
The prompt to retake the video with
The URL of the video to retake
Additional Settings More
Customize your input with more control.
220
The duration of the video to retake in seconds Range: 2 to 20.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "prompt": "Change flower to red rose", "video": "https://static.sandbase.ai/examples/ab43871c-ff3d-4c88-b2cf-b426f17f6b80/input/cce568b6-3e5b-4354-838c-5b2331f78ee9.mp4" }
LTX 2.3 Pro Retake
LTX 2.3 Pro retake: regenerate part of an existing clip from a prompt while keeping the rest.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Up to 5,000 characters. |
video | video URL, required | — | Source clip. |
duration | integer 2–20 | 5 | Length of the section to regenerate. |
Billing
$0.10 per regenerated second.
| Output | Price |
|---|---|
| 2s | $0.20 |
| 5s (default) | $0.50 |
| 10s | $1.00 |
Failed runs are not charged.
Prompting
- Describe what should happen in the retaken section.
Also on SandBase
Other LTX 2.3 endpoints: lightricks/ltx-2.3-pro/text-to-video, lightricks/ltx-2.3-pro/image-to-video, lightricks/ltx-2.3-pro/audio-to-video, lightricks/ltx-2.3-pro/video-extend.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "lightricks/ltx-2.3-pro/retake",
"video": "https://static.sandbase.ai/examples/lightricks/ltx-2.3-pro/retake/input_video_0.mp4",
"prompt": "Change flower to red rose",
"duration": 5
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
status=$(printf '%s' "$result" | jq -r .status)
case "$status" in completed|failed|timeout) break ;; esac
sleep 2
result=$(curl --fail-with-body --silent \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
"https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"2. Authentication
Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep the key on your server. Do not expose it in browser code or commit it to a repository.
3. Queue
Submit a request
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
Fetch request status and result
Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.
curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
-H "Authorization: Bearer $SANDBASE_API_KEY"4. Files
Hosted files
Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.
Uploading images
Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.
5. Schema
Input
promptstringrequired
The prompt to retake the video with
durationinteger
The duration of the video to retake in seconds
Default: 5
Minimum: 2
Maximum: 20
{
"model": "lightricks/ltx-2.3-pro/retake",
"video": "https://static.sandbase.ai/examples/lightricks/ltx-2.3-pro/retake/input_video_0.mp4",
"prompt": "Change flower to red rose",
"duration": 5
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"poster": "https://static.sandbase.ai/examples/posters/4529ce1fe33eb9846bd4.jpg",
"source": "Lightricks/LTX schema mirror",
"source_url": "https://ltx.studio/",
"url": "https://static.sandbase.ai/examples/ab43871c-ff3d-4c88-b2cf-b426f17f6b80/output/8c717cdf-71a9-4d75-a1b9-a0a6df4990e1.mp4"
}
]