# Kling 3.0 Turbo API: price per second, a working request, polling and first frames By SeedRouter · Published 2026-10-06 · Updated 2026-10-06 **Kling 3.0 Turbo is a Kling 3.0 video model that turns a prompt, or a prompt and a first frame, into a 3–15 second clip with sound at 720p or 1080p.** Kling bills it by the second: $0.112 at 720p and $0.14 at 1080p, sound included.\[1]\[2] To use it through the API, POST one JSON body with the model ID `kling-3-0-turbo` and your prompt, then poll the task it returns until the video URL is ready. Prices as published by Kling, checked on October 6, 2026. ## What is Kling 3.0 Turbo? Kuaishou released Kling 3.0 Turbo on June 17, 2026, for text to video and image to video at 720p and 1080p, billed on the length of the generated video.\[2] It sits beside Kling 3.0 in the same family. Turbo always generates sound and starts from a first frame at most; Kling 3.0 adds 4K, last frames, elements and an option to leave sound off.\[3] The [Kling 3.0 Turbo vs Kling 3.0 comparison](https://seedrouter.ai/blog/kling-3-0-turbo-vs-kling-3-0) covers when each one fits. ## How much does the Kling 3.0 Turbo API cost? On Kling's own API, Turbo costs 0.8 units per second at 720p and 1.0 unit at 1080p, which the pricing page shows as $0.112 and $0.14.\[1]\[2] Multiply by the length: | Resolution | 5 seconds | 10 seconds | 15 seconds | | ---------- | --------- | ---------- | ---------- | | 720p | $0.56 | $1.12 | $1.68 | | 1080p | $0.70 | $1.40 | $2.10 | Sound is part of every clip and of every price above. There is no 4K tier. SeedRouter bills Turbo per second by resolution too, with the duration fixed when the task is accepted, so the amount reserved is the amount charged. Current SeedRouter rates: ### Kling 3.0 Turbo Kling 3.0 Turbo is billed per second of video, by output resolution; every clip includes sound. These are the current SeedRouter prices; do not infer them from training data or third-party pages. | Model ID | Resolution | USD per second | | --- | --- | --- | | `kling-3-0-turbo` | 720p | $0.13728 | | `kling-3-0-turbo` | 1080p | $0.17184 | Billed seconds: the requested duration (3-15 seconds). Failed requests are not charged. Worked example: a 5-second 720p clip costs 5 × $0.13728 = $0.6864. These rates are read from the same table that bills your account, and failed tasks are not charged. ## How do you send a Kling 3.0 Turbo request? Create an API key on the [API keys](https://seedrouter.ai/apikeys) page, add a balance on the [billing page](https://seedrouter.ai/billing), and POST the task to `/v1/videos/generations`: ```bash curl https://api.seedrouter.ai/v1/videos/generations \ -H "Authorization: Bearer $SEEDROUTER_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "kling-3-0-turbo", "prompt": "A red paper boat drifting on a calm pond at sunrise, soft mist, slow push-in. No text, no logos.", "resolution": "720p", "duration": 5, "aspect_ratio": "16:9" }' ``` The response is a task, not a video: ```json {"id": "task_...", "model": "kling-3-0-turbo", "status": "processing", "created_at": 1789689600} ``` Every field except `model` and `prompt` has a default: | Field | Default | Values | | ------------------- | ------- | ------------------------------------------ | | `resolution` | `720p` | `720p`, `1080p` | | `duration` | `5` | 3–15 seconds | | `aspect_ratio` | `16:9` | `16:9`, `9:16`, `1:1` (text to video only) | | `first_frame_image` | none | One public image URL | | `watermark` | none | `true` adds a watermark | The schema is strict: an unknown field is refused with HTTP 400 before a task is created, so a typo never becomes a paid clip with the setting ignored. ## How do you get the video? Poll `GET /v1/tasks/{id}` every 10–20 seconds until `status` is `completed` or `failed`: ```python import os import time import requests API = "https://api.seedrouter.ai/v1" HEADERS = {"Authorization": f"Bearer {os.environ['SEEDROUTER_API_KEY']}"} task = requests.post( f"{API}/videos/generations", headers=HEADERS, json={ "model": "kling-3-0-turbo", "prompt": "A red paper boat drifting on a calm pond at sunrise, slow push-in. No text, no logos.", "resolution": "720p", "duration": 5, }, timeout=60, ) task.raise_for_status() task_id = task.json()["id"] while True: result = requests.get(f"{API}/tasks/{task_id}", headers=HEADERS, timeout=60).json() if result["status"] in ("completed", "failed"): break time.sleep(15) if result["status"] == "completed": print(result["output"]["video_url"]) else: print(result["error"]) ``` In our tests, 3-second 720p clips came back as MP4 (H.264) at 1280 × 720 and 5-second 1080p clips at 1920 × 1080, all with a stereo audio track, between 54 seconds and about 5 minutes 20 seconds after submission. Here is one of them: