Lightricks: LTX 2.3 Pro Extend

One API key. Live prices. Ready-to-run code.

3 Pro Extend continues a video by 2 to 20 seconds, matching its motion and sound. Output is 1080p.

Served on OneInfer by Lightricks. Use it with the same API key and pay-as-you-go wallet as every other model in the catalog.

ProviderLightricksLightricks/LTX-2.3-Pro-Extend

Call LTX 2.3 Pro Extend in 4 steps

Step 1 of 4

Create a key in the Console. The same key works for every model on OneInfer.

OverviewProvidersPricingBenchmarksAPI and quickstartReviews
Context
N/A
Input
text, video
Output
video
Tool calling
Not listed

About this model

LTX-2.3 Pro Extend continues a video by 2 to 20 seconds, matching its motion and sound. Send the video in video_url and the seconds to add in duration, and describe them in the prompt; extra_body.mode is end (default) or start, and extra_body.context sets how many seconds of the video it reads. Output is 1080p. Billed per second added plus the seconds it reads, about 21 seconds at most.

Input modalities

  • text

    Accepted as model input

  • video

    Accepted as model input

Providers

Available routing options for this model through OneInfer.

  • Lightricks
    Available
    Video generation
    $0.1000 / second
    Routing
    OneInfer optimized

Pricing

Current OneInfer pricing for this model.

UsagePrice
Video generation1080p$0.1000 / second

Performance and benchmarks

Independent evaluations and live cluster operational metrics

We haven’t measured this model yet.

API guide

API docs

  1. Generate your access token

    Use your API key to generate the JWT access token required by the Models API.

  2. Add the JWT token

    Copy the generated JWT token and replace JWT_TOKEN in the example below.

  3. Check your credits

    If your balance is too low, before calling the model.

  4. Run the API example

    Choose your preferred language, copy the example, and send your first model request.

    curl -X POST https://api.oneinfer.ai/v1/ula/generate-video \
  -H "Authorization: Bearer YOUR_JWT_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "Lightricks/LTX-2.3-Pro-Extend",
  "prompt": "A red fox running through a snowy forest",
  "resolution": "1080p",
  "aspect_ratio": "16:9",
  "duration": 5,
  "generate_audio": false,
  "camera_fixed": false,
  "service_tier": "default"
}'

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