Kling 3.0 Turbo Text to Video API

POST /v1/tasks

All models are called through the Unified Async API POST /v1/tasks endpoint; only the input fields differ (see input parameters below).

Model summary

Model name	kling-3.0-turbo/text-to-video
Type	Video generation (text-to-video)
Endpoint	POST /v1/tasks
Pricing	See HiAPI Pricing

Kling 3.0 Turbo text-to-video: the speed tier of the 3.0 family — 3-15s, 720p/1080p, per-second tiered billing, built for volume.

Production guidance

For production, pass callback.url at the top level of the request body so HiAPI can notify your service when the task reaches a terminal state.
GET /v1/tasks/:id is better for local debugging, low-volume jobs, or fallback reconciliation if a callback is missed.
Use callback.when=final. Both success and fail are terminal states, so your service should deduplicate by taskId.

Best suited for

Cost-efficient volume

The fast tier of the 3.0 family: low per-second price and quick turnaround.

promptresolution

Flexible 3-15s

From snappy social clips to 15-second stories, billed per second.

duration

Lip-synced dialogue

Quoted lines in the prompt are lip-synced for light narrative clips.

prompt

Request parameters

POST https://api.hiapi.ai/v1/tasks

# Create an async task — returns taskId immediately (generation runs async)
# Replace YOUR_API_KEY with your account API key
curl -X POST "https://api.hiapi.ai/v1/tasks" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "kling-3.0-turbo/text-to-video",
  "input": {
    "prompt": "A fluffy corgi puppy sprinting across a sunlit meadow in slow motion, ears flapping, golden hour backlight, cinematic tracking shot, shallow depth of field",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }
}'

import requests, json

# Business params — fields vary by model (see the model page)
payload = json.loads(r'''
{
  "model": "kling-3.0-turbo/text-to-video",
  "input": {
    "prompt": "A fluffy corgi puppy sprinting across a sunlit meadow in slow motion, ears flapping, golden hour backlight, cinematic tracking shot, shallow depth of field",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }
}
''')

# Create an async task — returns taskId immediately (generation runs async)
resp = requests.post(
    "https://api.hiapi.ai/v1/tasks",
    headers={"Authorization": "Bearer YOUR_API_KEY", "Content-Type": "application/json"},
    json=payload,
)
print(resp.json())  # Returns { code, message, data: { taskId } }

// Create an async task — returns taskId immediately (generation runs async)
// Replace YOUR_API_KEY with your account API key
const resp = await fetch("https://api.hiapi.ai/v1/tasks", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
  "model": "kling-3.0-turbo/text-to-video",
  "input": {
    "prompt": "A fluffy corgi puppy sprinting across a sunlit meadow in slow motion, ears flapping, golden hour backlight, cinematic tracking shot, shallow depth of field",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }
}),
});
console.log(await resp.json()); // Returns { code, message, data: { taskId } }

model string required

Fixed value kling-3.0-turbo/text-to-video.

example kling-3.0-turbo/text-to-video

input object required

Business parameters. Put Kling 3.0 Turbo Text to Video-specific configuration here.

prompt string required

Text description of the video to generate. Max 2500 characters. Supports dialogue lines in quotes for lip-synced speech.

duration integer optional

Duration of the generated video in seconds (3-15).

default 5

resolution enum optional

Resolution of the generated video.

default 720p enum: 720p1080p

aspect_ratio enum optional

Aspect ratio of the generated video frame.

default 16:9 enum: 16:99:161:1

callback object optional

Optional callback configuration. When set, HiAPI notifies your service when the task reaches a terminal state.

url string required

Required when callback is set; HTTPS URL that receives terminal task notifications.

example https://your-domain.com/hiapi/callback

when enum optional

Callback trigger timing. Use final.

default final enum: final

Example requests

Sunset corgi (defaults)

Tested with a prompt-only minimal call, 720p 5s.

Request body

{
  "model": "kling-3.0-turbo/text-to-video",
  "input": {
    "prompt": "A fluffy corgi puppy sprinting across a sunlit meadow in slow motion, ears flapping, golden hour backlight, cinematic tracking shot, shallow depth of field",
    "duration": 5,
    "resolution": "720p",
    "aspect_ratio": "16:9"
  }
}

Getting the result

The response returns a taskId immediately without waiting for generation to finish.
In production, prefer waiting for callback.url to receive the terminal notification. For local debugging, poll GET /v1/tasks/:id.
When status=success, download the generated video from output[].url.
When status=fail, fix the request based on the returned error instead of retrying the same invalid payload.

FAQ

Turbo vs kling-3.0-omni?

Turbo is the speed tier — cheaper and faster at 720p/1080p without native audio; omni is the flagship with 4K, native audio and multi-shot.

How is it billed?

Per second, tiered by resolution (720p/1080p), 3-15s duration.