Kuaishou / Kling API model

Kuaishou: kling-4.0

Kling 4.0 — native audio and video generation from text or image keyframes. Generate 3–30 seconds at 720p or 1080p; up to ten image keyframes through the API. Video references, Omni editing and 4K are unavailable on this route.

Start free — $2 credit View live pricing

Specs

Pricing and API details.

Transparent USD pricing. No mainland-China account or phone required. The displayed media rate may include a service margin covering provider input/output billing, payment processing, chargeback exposure, and operations. Any margin is included in the displayed rate and is not added separately.

Type

Video generation

Capabilities

Video, Text-to-Video, Image-to-Video, Audio

Billing

$0.9 per 5-second 720p generation

Endpoint

/v1/video/generations

About kling-4.0

Pricing

Transparent USD pricing.

kling-4.0

$0.9 per 5-second 720p generation. Paid in USD. The displayed media rate may include a service margin covering provider input/output billing, payment processing, chargeback exposure, and operations. Any margin is included in the displayed rate and is not added separately. View live pricing The displayed $0.90 is a 5-second 720p baseline: $0.18/second at 720p and $0.27/second at 1080p. A 3-second clip costs $0.54 or $0.81. Duration, resolution and price are explicit; the displayed USD service price includes the service margin.

Quickstart

Copy-paste API request.

curl -X POST https://api.chinaapi.ai/v1/videos \
  -H "Authorization: Bearer $CHINAAPI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "kling-4.0",
    "prompt": "A red wooden toy boat floats on a calm pond in soft daylight.",
    "metadata": {
      "settings": {"duration": 3, "resolution": "720p", "aspect_ratio": "16:9"}
    }
  }'

curl https://api.chinaapi.ai/v1/videos/{task_id} \
  -H "Authorization: Bearer $CHINAAPI_API_KEY"

Internal links

Related model pages and guides.

Model directoryBrowse all models Live pricingCurrent dashboard pricing Kling API access guideOpen guide kling-3.0-turbo$0.56 per generation kling-v3$0.42 per 5-second 720p silent generation kling-v3-omni$0.42 per generation

How do I use kling-4.0?

Use kling-4.0 through ChinaAPI with an API key and the OpenAI-compatible endpoint shown above.

How much does kling-4.0 cost?

kling-4.0 is $0.9 per 5-second 720p generation, paid in USD. The live pricing page is authoritative. The displayed media rate may include a service margin covering provider input/output billing, payment processing, chargeback exposure, and operations. Any margin is included in the displayed rate and is not added separately.

Does kling-4.0 need a Chinese account?

No. ChinaAPI provides access without a mainland-China account or phone number and includes a $2 free trial. Check live pricing for the displayed USD rate.