Kling V1 AI Avatar Standard | AI Digital Human API

Kuaivgi Kling v1 AI Avatar Standard — Audio-Driven Talking Portrait

Turn a single portrait into a natural talking-head video driven by your audio. The Standard tier focuses on clean lip-sync and stable identity at a budget-friendly rate—great for explainers, support avatars, internal training, and product demos.

Highlights

Phoneme-aligned lip-sync with natural eye blinks and head motion
Identity-preserving generation from one image
Works with real recordings or TTS audio
Optional prompt to nudge framing, background vibe, or style
Fast, reliable outputs suitable for everyday production

Parameters

audio (required): speech track; duration determines the clip length
image (required): clear, front-facing portrait (URL or upload)
prompt (optional): short guidance for mood, background, or framing

Recommended inputs

Portrait: even lighting, minimal occlusion, 512 px or larger
Audio: clean voice, 16–48 kHz, avoid heavy music/reverb

How to Use

Upload or paste the audio URL.
Upload or paste the portrait image URL.
(Optional) Add a brief prompt to describe background tone or framing.
Press Run and download the generated avatar video.

Tips

Trim long silences to reduce cost and tighten pacing.
Keep headroom consistent across images if you plan a series.
Use a high-quality mic or TTS for crisp consonants and better lip-sync.

Pricing

Price per second: $0.05

Billing rules

Minimum charge: 5 seconds.
Maximum billable length: 600 seconds (10 minutes) → $30.00 cap.
Currency rounding: totals are rounded to the nearest cent.

Kling v1 Ai Avatar Standard API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/kwaivgi/kling-v1-ai-avatar-standard with your input as JSON. The endpoint returns a prediction id; poll the prediction endpoint until status flips to completed, then read the output URL from data.outputs[0]. Examples for Kling v1 Ai Avatar Standard below.

HTTP example

# Submit the prediction
curl -X POST "https://api.wavespeed.ai/api/v3/kwaivgi/kling-v1-ai-avatar-standard" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d '{
    "image": "https://example.com/your-input.jpg",
    "audio": "https://example.com/your-audio.mp3",
    "prompt": "A cinematic shot of a city at sunset, soft golden light"
}'

# Response includes a prediction id. Poll for the result:
curl -X GET "https://api.wavespeed.ai/api/v3/predictions/{request_id}/result" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY"

# When status is "completed", read the output from data.outputs[0].

Node.js example

// npm install wavespeed
const WaveSpeed = require('wavespeed');

const client = new WaveSpeed(); // reads WAVESPEED_API_KEY from env

const result = await client.run("kwaivgi/kling-v1-ai-avatar-standard", {
        "image": "https://example.com/your-input.jpg",
        "audio": "https://example.com/your-audio.mp3",
        "prompt": "A cinematic shot of a city at sunset, soft golden light"
});

console.log(result.outputs[0]); // → URL of the generated output

Python example

# pip install wavespeed
import wavespeed

output = wavespeed.run(
    "kwaivgi/kling-v1-ai-avatar-standard",
    {
    "image": "https://example.com/your-input.jpg",
    "audio": "https://example.com/your-audio.mp3",
    "prompt": "A cinematic shot of a city at sunset, soft golden light"
}
)

print(output["outputs"][0])  # → URL of the generated output

Kling v1 Ai Avatar Standard API — Frequently asked questions

What is the Kling v1 Ai Avatar Standard API?

Kling v1 Ai Avatar Standard is a Kuaishou model for talking-avatar generation, exposed as a REST API on WaveSpeedAI. Kling AI Avatar produces stunning AI-generated video avatars for digital identity and content creation, with on-demand video billed at $0.25 per 5 seconds. Ready-to-use REST API, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Kling v1 Ai Avatar Standard API?

POST your input parameters to the model's REST endpoint (shown in the API tab of this playground) with your WaveSpeedAI API key in the Authorization header. Submission returns a prediction ID; poll the prediction endpoint until status flips to "completed", then read the output URL from the result. The playground generates a ready-to-paste code sample in Python, JavaScript, or cURL for whatever inputs you've set. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/kwaivgi/kwaivgi-kling-v1-ai-avatar-standard.

How much does Kling v1 Ai Avatar Standard cost per run?

Kling v1 Ai Avatar Standard starts at $0.25 per run. That figure is the base price — the final charge scales with the parameters you set in the form (output size, length, count, references, or whatever knobs this model exposes), so a higher-quality or larger output costs more than a minimal one. The exact cost for your current input is shown live next to the Generate button before you submit, and the actual per-call charge is recorded on the prediction afterwards.

What inputs does Kling v1 Ai Avatar Standard accept?

Key inputs: `prompt`, `image`, `audio`. The full JSON schema (types, defaults, allowed values) is rendered above the Generate button and mirrored in the API reference at https://wavespeed.ai/docs/docs-api/kwaivgi/kwaivgi-kling-v1-ai-avatar-standard.

How long does Kling v1 Ai Avatar Standard take to generate?

Average end-to-end generation time on WaveSpeedAI is around 255 seconds per request — measured across recent runs. Queue time scales with global demand; live status is visible in the prediction record.

Can I use Kling v1 Ai Avatar Standard outputs commercially?

Commercial usage rights depend on the model's license, set by its provider (Kuaishou). The license summary appears on the model card above; see WaveSpeedAI's Terms of Service for platform-level conditions.

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