Models / Video / Kling

Kling O3 Pro API

Kling O3 Pro API through UplinkSwitch: $0.0813 to $0.10 per second, prepaid, no subscription. Kling's video model on one key with every other model; a generation that fails is not charged.

kling-o3-proVideoper second

Price · per second, USD

SettingsUplinkSwitch
sound false$0.0813
sound true$0.10
Charged when the request is accepted; refunded in full if the generation fails.

Call it · POST /v1/generations

curl
curl https://api.uplinkswitch.com/v1/generations \
  -H "Authorization: Bearer $UPLINK_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling-o3-pro",
  "input": {
    "duration": 5,
    "multi_shots": false,
    "sound": false
  }
}'

# then poll until "status" is "succeeded":
curl https://api.uplinkswitch.com/v1/generations/gen_... -H "Authorization: Bearer $UPLINK_API_KEY"

Settings · in input

NameTypeValuesDefault
image_urlsurls——
reference_image_urlsurls——
promptstring——
multi_promptobjects——
duration requiredinteger——
multi_shots requiredboolean—false
sound requiredboolean——
aspect_ratiostring1:1, 16:9, 9:16—
kling_elementsobjects——

Questions

How much does the Kling O3 Pro API cost?
From $0.0813 per second. The price depends on the settings in the table and is fixed when the request is accepted.
Is there a subscription?
No. You add credit and each request is paid from it. There is no monthly fee and no minimum per request.
What happens if a generation fails?
It is refunded in full, automatically. You pay only for files you receive.
How long are the files kept?
Thirty days, at a URL on api.uplinkswitch.com. Download what you want to keep.
Can I use the same key for other models?
Yes. The same key calls every image, video, speech and 3D model and every chat model in the catalog.