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Sync Lipsync 3 Avatar Image to Talking Video API

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Sync Lipsync 3 Avatar turns a single still image and an input audio track into a lip-synced talking character video, with natural mouth movement, facial animation, and stable avatar performance. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

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README

Sync Lipsync 3 Avatar

Sync Lipsync 3 Avatar turns a single still image into a talking character video driven by an input audio track. It is designed for portrait avatars, illustrated characters, and animated-frame references that need natural lip synchronization.

Why Choose This?

  • Image-to-video avatar generation
    Animate a still image into a talking video using only an image and an audio file.

  • Audio-driven timing
    The generated video follows the duration and speech timing of the input audio.

  • Works with multiple visual styles
    Supports realistic portraits, illustrations, and animated character frames.

  • Simple production workflow
    No prompt or extra tuning is required; provide the reference image and audio track.

  • Standard video output
    The generated video is returned as a URL in the standard WaveSpeed prediction response.

Parameters

ParameterRequiredDescription
imageYesInput image URL. Use a clear face image in JPEG, PNG, or WebP format.
audioYesInput audio URL. The output video follows the audio duration.

How to Use

  1. Upload an image - Provide a clear portrait or character image with a visible face.
  2. Upload audio - Provide the speech or singing audio that should drive the lip-sync.
  3. Submit - Generate the talking avatar video.
  4. Download - Use the returned video URL in your editing or publishing workflow.

Pricing

Pricing is $8.00 per minute of input audio, billed proportionally by exact audio duration.

Audio DurationPrice
10s$1.33
11s$1.47
30s$4.00
60s$8.00
90s$12.00

Best Use Cases

  • Talking avatars - Create presenter or character videos from a single image.
  • Localized narration - Generate avatar videos from translated or re-recorded voice tracks.
  • Character dialogue - Animate illustrated or stylized character frames for dialogue scenes.
  • Marketing clips - Produce short spokesperson videos from static brand assets.
  • Education and demos - Create simple explainers, tutorials, or training clips without filming.

Pro Tips

  • Use a clear face image with visible mouth and eyes.
  • Avoid heavy occlusion, extreme angles, or very low-resolution images.
  • Use clean audio with minimal background noise for better lip-sync.
  • Trim silence before upload if you want tighter timing and lower cost.
  • Make sure image and audio URLs are publicly accessible.
नोट:यह वेबसाइट तृतीय पक्षों द्वारा प्रदान किए गए AI मॉडलों का उपयोग करती है।

Lipsync 3 Avatar API — Quick start

Grab a WaveSpeedAI API key, then call POST https://api.wavespeed.ai/api/v3/sync/lipsync-3/avatar with your input as JSON. The endpoint returns a prediction id. Start polling the result endpoint around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. On completed, read output values from data.outputs. Examples for Lipsync 3 Avatar below.

HTTP example
set -euo pipefail

: "${WAVESPEED_API_KEY:?Set WAVESPEED_API_KEY}"

REQUEST_BODY=$(cat <<'JSON'
{
    "image": "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg",
    "audio": "https://interactive-examples.mdn.mozilla.net/media/cc0-audio/t-rex-roar.mp3"
}
JSON
)

# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
  -X POST "https://api.wavespeed.ai/api/v3/sync/lipsync-3/avatar" \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $WAVESPEED_API_KEY" \
  -d "$REQUEST_BODY")

TASK=$(printf '%s' "$SUBMIT_RESPONSE" | jq 'if has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "$TASK" | jq -r '.id')
if [ -z "$PREDICTION_ID" ] || [ "$PREDICTION_ID" = "null" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(printf '%s' "$TASK" | jq -r '.urls.get // empty')
if [ -z "$RESULT_URL" ]; then
  RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/$PREDICTION_ID/result"
fi

# 2. Poll until the prediction finishes.
while true; do
  RESPONSE=$(curl --silent --show-error --fail-with-body "$RESULT_URL" \
    -H "Authorization: Bearer $WAVESPEED_API_KEY")
  RESULT=$(printf '%s' "$RESPONSE" | jq 'if has("data") then .data else . end')
  STATUS=$(printf '%s' "$RESULT" | jq -r '.status')
  case "$STATUS" in
    completed) printf '%s\n' "$RESULT" | jq '.outputs'; break ;;
    failed|cancelled|timeout) printf '%s\n' "$RESULT" | jq . >&2; exit 1 ;;
    created|processing) sleep 2 ;;
    *) printf 'Unexpected status: %s
' "$STATUS" >&2; exit 1 ;;
  esac
done
Node.js example
const submitUrl = "https://api.wavespeed.ai/api/v3/sync/lipsync-3/avatar";
const apiKey = process.env.WAVESPEED_API_KEY;
if (!apiKey) throw new Error('Set WAVESPEED_API_KEY');

async function requestJson(url, options = {}) {
  const response = await fetch(url, options);
  if (!response.ok) throw new Error(await response.text());
  return response.json();
}

// 1. Submit the prediction.
const body = await requestJson(submitUrl, {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${apiKey}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
        "image": "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg",
        "audio": "https://interactive-examples.mdn.mozilla.net/media/cc0-audio/t-rex-roar.mp3"
}),
});
const task = body.data ?? body;
if (!task.id) throw new Error("Submission response did not contain a prediction id");
const resultUrl = task.urls?.get ||
  `https://api.wavespeed.ai/api/v3/predictions/${task.id}/result`;

// 2. Poll until the prediction finishes.
while (true) {
  const resultBody = await requestJson(resultUrl, {
    headers: { "Authorization": `Bearer ${apiKey}` },
  });
  const result = resultBody.data ?? resultBody;
  if (result.status === "completed") {
    console.log(result.outputs);
    break;
  }
  if (["failed", "cancelled", "timeout"].includes(result.status)) throw new Error(JSON.stringify(result));
  if (!["created", "processing"].includes(result.status)) throw new Error("Unexpected status: " + result.status);
  await new Promise(resolve => setTimeout(resolve, 2000));
}
Python example
import json
import os
import time
from urllib.request import Request, urlopen

api_key = os.environ["WAVESPEED_API_KEY"]
headers = {"Authorization": f"Bearer {api_key}", "Content-Type": "application/json"}
payload = {
    "image": "https://interactive-examples.mdn.mozilla.net/media/cc0-images/painted-hand-298-332.jpg",
    "audio": "https://interactive-examples.mdn.mozilla.net/media/cc0-audio/t-rex-roar.mp3"
}

def request_json(url, data=None):
    request = Request(url, data=data, headers=headers, method="POST" if data else "GET")
    with urlopen(request) as response:
        return json.load(response)

# 1. Submit the prediction.
body = request_json("https://api.wavespeed.ai/api/v3/sync/lipsync-3/avatar", json.dumps(payload).encode())
task = body.get("data", body)
if not task.get("id"):
    raise RuntimeError("Submission response did not contain a prediction id")
result_url = task.get("urls", {}).get("get") or f"https://api.wavespeed.ai/api/v3/predictions/{task['id']}/result"

# 2. Poll until the prediction finishes.
while True:
    result_body = request_json(result_url)
    result = result_body.get("data", result_body)
    status = result.get("status")
    if status == "completed":
        print(result.get("outputs", []))
        break
    if status in {"failed", "cancelled", "timeout"}:
        raise RuntimeError(result)
    if status not in {"created", "processing"}:
        raise RuntimeError(f"Unexpected status: {status}")
    time.sleep(2)

Lipsync 3 Avatar API — Frequently asked questions

What is the Lipsync 3 Avatar API?

Lipsync 3 Avatar is a Sync model for talking-avatar generation, exposed as a REST API on WaveSpeedAI. Sync Lipsync 3 Avatar turns a single still image and an input audio track into a lip-synced talking character video, with natural mouth movement, facial animation, and stable avatar performance. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing. You can call it programmatically or try it from the playground above.

How do I call the Lipsync 3 Avatar 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 result endpoint starting around every 2 seconds, increase the interval for long-running tasks, and stop on any terminal status. The playground generates production-oriented Python, JavaScript, and cURL examples with timeouts, transient-error handling, and safe GET retries. Full request/response shape is documented at https://wavespeed.ai/docs/docs-api/sync/sync-lipsync-3-avatar.

How much does Lipsync 3 Avatar cost per run?

Lipsync 3 Avatar starts at $8.00 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 Lipsync 3 Avatar accept?

Key inputs: `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/sync/sync-lipsync-3-avatar.

How long does Lipsync 3 Avatar take to generate?

Median end-to-end generation time on WaveSpeedAI is around 534 seconds per request, based on recent successful runs. Queue time varies with global demand; live status is visible in the prediction record.

Can I use Lipsync 3 Avatar outputs commercially?

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

Sync Lipsync 3 Avatar Image to Talking Video API | WaveSpeedAI