> ## Documentation Index
> Fetch the complete documentation index at: https://apixo.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# Kling 3.0 Turbo
> Fast video generation API with text-to-video and image-to-video workflows
## Overview
Kling 3.0 Turbo is a fast Kuaishou video generation model on APIXO for short clips from text prompts or a single reference image. Use it when you want the Kling 3.0 family with a simpler surface than Kling 3.0 Std.
| Capability | Value |
| ---------------- | ----------------------------------------- |
| Model ID | `kling-3-0-turbo` |
| Modes | `text-to-video`, `image-to-video` |
| Prompt | Required in both modes |
| Resolution | `720p`, `1080p` |
| Duration | `3-15` seconds |
| Aspect ratios | `16:9`, `9:16`, `1:1` for `text-to-video` |
| Reference images | `image-to-video`: exactly 1 image URL |
| Output | Video URLs in `resultJson.resultUrls` |
## Endpoint and authentication
Base URL:
```text theme={null}
https://api.apixo.ai/api/v1
```
| Method | Endpoint | Purpose |
| ------ | --------------------------------------------- | ------------------------------------- |
| `POST` | `/generateTask/kling-3-0-turbo` | Submit a generation task |
| `GET` | `/statusTask/kling-3-0-turbo?taskId={taskId}` | Poll task status and retrieve results |
All requests require your APIXO API key:
```http theme={null}
Authorization: Bearer YOUR_API_KEY
```
Submit requests also require:
```http theme={null}
Content-Type: application/json
```
## Copy-paste async quickstart
This minimal request submits a text-to-video task and returns a `taskId`.
```bash theme={null}
curl -X POST "https://api.apixo.ai/api/v1/generateTask/kling-3-0-turbo" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"request_type": "async",
"input": {
"mode": "text-to-video",
"prompt": "a cinematic city skyline at sunset with a slow push-in",
"duration": 12,
"resolution": "720p",
"aspect_ratio": "16:9"
}
}'
```
Successful response:
```json theme={null}
{
"code": 200,
"message": "success",
"data": {
"taskId": "task_12345678"
}
}
```
Save the `taskId`; you need it to poll for the final result.
## Poll for result
```bash theme={null}
curl -X GET "https://api.apixo.ai/api/v1/statusTask/kling-3-0-turbo?taskId=task_12345678" \
-H "Authorization: Bearer YOUR_API_KEY"
```
Processing response:
```json theme={null}
{
"code": 200,
"message": "success",
"data": {
"taskId": "task_12345678",
"state": "processing",
"createTime": 1767965610929
}
}
```
Success response:
```json theme={null}
{
"code": 200,
"message": "success",
"data": {
"taskId": "task_12345678",
"state": "success",
"resultJson": "{\"resultUrls\":[\"https://file.apixo.ai/video.mp4\"]}",
"createTime": 1767965610929,
"completeTime": 1767965652317,
"costTime": 41388
}
}
```
Failed response:
```json theme={null}
{
"code": 200,
"message": "success",
"data": {
"taskId": "task_12345678",
"state": "failed",
"failCode": "INVALID_PARAMETER",
"failMsg": "One or more input parameters are invalid.",
"createTime": 1767965610929,
"completeTime": 1767965620132
}
}
```
Parse `resultJson` after `state` becomes `success`:
```javascript theme={null}
const payload = JSON.parse(data.resultJson);
const videoUrls = payload.resultUrls;
```
## Request body
### Text-to-video
```json theme={null}
{
"request_type": "async",
"input": {
"mode": "text-to-video",
"prompt": "a cinematic city skyline at sunset with a slow push-in",
"duration": 12,
"resolution": "1080p",
"aspect_ratio": "16:9"
}
}
```
### Image-to-video
```json theme={null}
{
"request_type": "async",
"input": {
"mode": "image-to-video",
"prompt": "animate the portrait with a gentle camera move",
"duration": 15,
"resolution": "720p",
"image_urls": [
"https://example.com/source.png"
]
}
}
```
## Parameters
Result delivery mode. Use `async` for polling with `statusTask`, or `callback` for webhook delivery.
Required when `request_type` is `callback`. Must be a public HTTPS URL that can receive the final task payload. See [Webhooks](/api-reference/webhooks).
Kling 3.0 Turbo input parameters.
Generation mode. Supported values: `text-to-video`, `image-to-video`.
Text prompt describing the desired video. It must be a non-empty string in both modes.
Output duration in seconds. Supports integer values or numeric strings from `3` to `15`.
Output resolution. Supported values: `720p`, `1080p`.
Output aspect ratio for `text-to-video` only. Supported values: `16:9`, `9:16`, `1:1`. If omitted in `text-to-video`, APIXO defaults to `16:9`. This field is not forwarded for `image-to-video`.
Reference image URLs. Required for `image-to-video`. Provide exactly 1 non-empty image URL.
## Response format
### Submit task response
`POST /generateTask/kling-3-0-turbo` returns a task ID when the task is accepted:
API status code. `200` means the task was accepted.
Human-readable status message.
Unique task identifier used with the status endpoint.
### Status response fields
Unique task identifier.
Current task state: `pending`, `processing`, `success`, or `failed`.
JSON string containing the generated video URLs. Present when `state` is `success`.
Machine-readable failure code. Present when `state` is `failed`.
Human-readable failure message. Present when `state` is `failed`.
Task creation timestamp in Unix milliseconds.
Task completion timestamp in Unix milliseconds. Present after completion.
Processing duration in milliseconds. Present after successful completion when available.
## Webhook callback mode
Use callback mode when your backend should receive the final result automatically instead of polling.
```bash theme={null}
curl -X POST "https://api.apixo.ai/api/v1/generateTask/kling-3-0-turbo" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"request_type": "callback",
"callback_url": "https://your-server.com/webhooks/apixo",
"input": {
"mode": "image-to-video",
"prompt": "animate the product photo with a slow camera move",
"duration": 8,
"resolution": "720p",
"image_urls": [
"https://example.com/product.png"
]
}
}'
```
The callback payload uses the same `code`, `message`, and `data` shape as the status response. See [Webhooks](/api-reference/webhooks) for delivery requirements and retry behavior.
## Billing
Kling 3.0 Turbo is billed per output second. `text-to-video` and `image-to-video` use the same pricing, and total cost is `unit price * duration`.
| Resolution | Unit price | Example total |
| ---------- | ----------------- | ------------- |
| `720p` | `$0.112 / second` | 12s: `$1.344` |
| `1080p` | `$0.14 / second` | 15s: `$2.10` |
For current route and market comparison pricing, see [Pricing](https://apixo.ai/pricing).
## Latency and polling
Actual latency may vary by prompt complexity, selected resolution, route, and current queue load.
| Request shape | Typical generation time | Recommended first poll | Poll interval |
| ------------------- | ----------------------- | ----------------------- | ------------- |
| `3-5` second clip | 60s-90s | 60s after task creation | 5s-10s |
| `6-10` second clip | 90s-120s | 60s after task creation | 5s-10s |
| `11-15` second clip | 120s-180s | 60s after task creation | 5s-10s |
For production workloads, use callback mode to avoid frequent polling.
Rate limits and concurrency can vary by account, API key, and route. If you receive `429`, slow down requests and retry with backoff. For account-level details, see [System APIs](/api-reference/system).
## Errors and troubleshooting
### HTTP errors
| Code | Meaning | What to do |
| ----- | --------------------------------------------------- | ------------------------------------------------ |
| `400` | Invalid request body, mode, parameter, or image URL | Fix the request before retrying |
| `401` | Missing or invalid API key | Check the `Authorization` header |
| `402` | Insufficient balance or quota | Add balance or switch account/key |
| `403` | Key or route cannot access the model | Check permissions and route strategy |
| `429` | Rate limit or concurrency limit reached | Retry with exponential backoff |
| `500` | Server error | Retry with backoff |
| `502` | Upstream service error | Retry with backoff |
| `504` | Upstream timeout | Retry or use callback mode for long-running jobs |
### Task failure codes
| Fail code | Meaning | What to do |
| ---------------------- | ------------------------------------------------------- | ------------------------------------------------------------------------ |
| `CONTENT_VIOLATION` | Prompt or input media failed safety checks | Change the prompt or input image |
| `INVALID_PARAMETER` | A required field is missing or a value is unsupported | Check `mode`, `duration`, `resolution`, `aspect_ratio`, and `image_urls` |
| `INVALID_IMAGE_URL` | The reference image could not be fetched or decoded | Use a direct, publicly accessible image URL |
| `INSUFFICIENT_BALANCE` | The account does not have enough balance for the task | Add balance before retrying |
| `UPSTREAM_ERROR` | Upstream generation failed | Retry with backoff |
| `UNKNOWN_ERROR` | The failure could not be mapped to a more specific code | Retry later or contact support with the `taskId` |
### Common validation issues
| Issue | Fix |
| --------------------------------- | ------------------------------------------------------- |
| Missing `mode` | Set `input.mode` to `text-to-video` or `image-to-video` |
| Missing `prompt` | Provide a non-empty prompt string |
| Unsupported `duration` | Use `3` through `15` seconds |
| Unsupported `resolution` | Use `720p` or `1080p` |
| Aspect ratio has no effect | `aspect_ratio` is only forwarded for `text-to-video` |
| `image-to-video` fails validation | Provide exactly 1 image URL in `image_urls` |
See [Error Codes](/api-reference/errors) for the full error reference.
## Related links
* [Generation API Overview](/models)
* [Generate Task](/api-reference/generate-task)
* [Status Task](/api-reference/status-task)
* [Webhooks](/api-reference/webhooks)
* [Error Codes](/api-reference/errors)
* [Parameter Specification](/api-reference/parameters)
* [Routing Strategies](/concepts/routing-strategies)
* [Pricing](https://apixo.ai/pricing)