Kwaivgi Kling V1 AI Avatar Standard

Kwaivgi Kling V1 AI Avatar Standard

Playground

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.

Features

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

1. Upload or paste the audio URL.
2. Upload or paste the portrait image URL.
3. (Optional) Add a brief prompt to describe background tone or framing.
4. 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

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

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result

set -euo pipefail

export WAVESPEED_API_KEY="your-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/kwaivgi/kling-v1-ai-avatar-standard" \
  -H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
  -H "Content-Type: application/json" \
  -d "${REQUEST_BODY}")

TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
  printf 'Submission response did not contain a prediction id
' >&2
  exit 1
fi
RESULT_URL=$(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' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
  STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')

  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

Parameters

Task Submission Parameters

Request Parameters

Response Parameters

Result Request Parameters

Result Response Parameters