LivePortrait

Video generationAvailable
by CommunityModel ID: liveportrait

Kuaishou LivePortrait. Efficient portrait animation driven by reference videos with stitching, retargeting and motion-control parameters.

Price
โ‰ˆ US$0.0949/run
Aspect ratios
16:9, 9:16, 1:1
Input โ†’ output
Text + Image โ†’ Video
Developer
Community
Updated
23 September 2026
01

Playground

Try LivePortrait

Input & output

โ‰ˆ US$0.0949/run
Try LivePortrait

0 / 2,000

Description for animation

Reference portrait image

Advanced settings (3)

Optional seed for reproducibility

Output
Your video appears here.

This run

about US$0.0949 ยท 9.49 credits

US$0.2845 (28.45 credits) are reserved at the start; the actual GPU time is billed.

For accounts without a purchase: runs above 2 credits need a top-up.

New here?

10 free credits (US$0.10) when you sign up with Google

Usable 24 hours after sign-up, up to 5 runs per day and at most 2 credits per run. Other sign-in methods start without credits.

02

About LivePortrait

TL;DRAs of 23 September 2026

LivePortrait is a model by Community in the Video generation category. On Railwail, LivePortrait costs โ‰ˆ US$0.0949 per run. Supported aspect ratios: 16:9, 9:16 and 1:1.

03

Pricing

Prices in US dollars. Usage is charged from prepaid credits.
Typical run (โ‰ˆ 81 s on L40S)US$0.0949 per run
GPU time (L40S)US$0.00117 per GPU second
  • Billed by the GPU time the run actually takes. When the run starts, 3ร— the typical price is reserved from your balance and settled afterwards.
  • 1 credit = US$0.01

Cost calculator

Price calculator

s

Typical according to the provider: about 81 s

Total

US$9.49

949 credits

Per run

US$0.0949 ยท 9.49 credits

Billed by the actual GPU time; this is an estimate.

04

API

Call LivePortrait with your Railwail API key. Use this model ID in the request:
curl https://railwail.com/api/v1/videos/generations \
  -H "Authorization: Bearer $RAILWAIL_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "liveportrait",
    "prompt": "A slow drone shot over a misty pine forest at sunrise",
    "image_url": "https://example.com/first-frame.jpg"
  }'

# Response: {"job_id": "...", "status": "queued", ...}
# Poll until status is completed, failed or cancelled:
curl https://railwail.com/api/v1/jobs/JOB_ID \
  -H "Authorization: Bearer $RAILWAIL_API_KEY"
Set your key as RAILWAIL_API_KEYCreate API key

Videos run asynchronously: the first call returns a job_id; query /api/v1/jobs/JOB_ID until the status is completed.

05

Specifications

Model ID
liveportrait
Developer
Community
Input
Text, Image
Output
Video
Aspect ratios
16:9, 9:16, 1:1
Billing
By usage (tokens or GPU time)
Catalog entry updated
23 September 2026

Input parameters

Inputs and settings from the model's input schema. The example in the API section shows which of them the API accepts.

  • image_urlrequired

    Reference portrait image

    Type: Text
    Default: โ€“
    Allowed values: โ€“
  • fps
    Type: Integer
    Default: 24
    Allowed values: 12 to 30
  • seed

    Optional seed for reproducibility

    Type: Integer
    Default: โ€“
    Allowed values: โ€“
  • prompt

    Description for animation

    Type: Text
    Default: โ€“
    Allowed values: up to 2,000 characters
  • aspect_ratio
    Type: Choice
    Default: 1:1
    Allowed values: 16:9, 9:16 or 1:1
  • duration_sec
    Type: Integer
    Default: 5
    Allowed values: 1 to 30
  • motion_strength
    Type: Number
    Default: 0.5
    Allowed values: 0 to 1

Tags

  • replicate
  • lipsync
  • kuaishou
  • portrait-animation
  • open-source
06

Use cases

07

Frequently asked questions

What is LivePortrait?

LivePortrait is a model by Community in the Video generation category. On Railwail you can call it with an API key through the Railwail API.

How much does LivePortrait cost on Railwail?

On Railwail, LivePortrait costs โ‰ˆ US$0.0949 per run. You are charged for what each request actually uses. Usage is paid from prepaid credits; 1 credit equals US$0.01.

Which settings does LivePortrait support?

According to its input schema, LivePortrait knows these parameters: image_url, fps (12 to 30), seed, prompt (up to 2,000 characters), aspect_ratio (16:9, 9:16 or 1:1), duration_sec (1 to 30) and motion_strength (0 to 1).

How fast is LivePortrait?

There are not enough measured runs of LivePortrait on Railwail yet to state a run time. It depends on the input, the settings and the load at the provider.

Is LivePortrait better than Google Veo 3.1?

That depends on the task. LivePortrait (Community) and Google Veo 3.1 (Google DeepMind) are both models in the Video generation category. The comparison page shows their prices and specifications side by side.

Compare LivePortrait and Google Veo 3.1

Can LivePortrait use an image as input?

Yes. Send the image in the image_url parameter.

How do I use LivePortrait through the API?

Create a Railwail API key and send your request with the model ID liveportrait. Code examples for curl, Python and JavaScript are in the API section of this page.

08

Comparable models

All in this category

Use LivePortrait via the API

One API key for every model on Railwail. Usage is charged from prepaid credits, 1 credit = US$0.01.