audiostringrequired
The URL of the audio file.
Kling AI Avatar 2.0 Pro
15% OFF
kwaivgi/kling-video/ai-avatar/2.0/proKling AI Avatar 2.0 Pro by Kuaishou animates a portrait image into a talking-head video lip-synced to an input audio track, at Pro quality.
Try the model
Playground
Input
The prompt to use for the video generation.
PNG, JPEG, WebP, or GIF · 20 MiB maximum
The URL of the image to use as your avatar
This field is required.
The URL of the audio file.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "audio": "https://static.sandbase.ai/examples/2344becd-9196-4cec-b002-593f3c58ad87/input/2cddcd9d-dc34-447a-b542-a333350592b9.mp3", "image": "https://static.sandbase.ai/examples/2344becd-9196-4cec-b002-593f3c58ad87/input/fea5b189-ea59-4ce0-bc86-0b3ec493a3f8.jpg", "prompt": "." }
Kling AI Avatar 2.0 Pro
Kling AI Avatar 2.0 Pro: a talking-head video from one portrait and an audio track, with lip sync and natural head motion.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | . | Gesture, expression, and scene direction. |
image | image URL, required | — | Portrait. JPEG, PNG, or WebP URL. |
audio | audio URL, required | — | Speech that drives the lips. |
Billing
$0.115 per output second; the output is as long as the audio. The quote before submission assumes 5 seconds.
| Audio | Price |
|---|---|
| 5s audio | $0.575 |
| 30s audio | $3.45 |
| 60s audio | $6.90 |
Failed runs are not charged.
Prompting
- Use a front-facing portrait with the mouth visible.
Limits
- Output length follows the audio.
Also on SandBase
Related: kwaivgi/kling-video/ai-avatar/2.0/standard.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "kwaivgi/kling-video/ai-avatar/2.0/pro",
"audio": "https://static.sandbase.ai/examples/kwaivgi/kling-video/ai-avatar/2.0/pro/output_url_0.mp3",
"image": "https://static.sandbase.ai/examples/kwaivgi/kling-video/ai-avatar/2.0/pro/input_image_1.jpg",
"prompt": "."
}
SANDBASE_JSON
)
run_id=$(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
imagestringrequired
The URL of the image to use as your avatar
promptstringrequired
The prompt to use for the video generation.
Default: "."
{
"model": "kwaivgi/kling-video/ai-avatar/2.0/pro",
"audio": "https://static.sandbase.ai/examples/kwaivgi/kling-video/ai-avatar/2.0/pro/output_url_0.mp3",
"image": "https://static.sandbase.ai/examples/kwaivgi/kling-video/ai-avatar/2.0/pro/input_image_1.jpg",
"prompt": "."
}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/b7ed3d27d2310471eedd.jpg",
"source": "Kling AI official schema mirror",
"source_url": "https://kling.ai/document-api/guides/get-started/overview",
"url": "https://static.sandbase.ai/examples/2344becd-9196-4cec-b002-593f3c58ad87/output/37839889-01c3-4a7d-aebf-a78913302b7a.mp4"
}
]