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Video·2026年7月2日·6 min read

Kling API & Kling AI API pricing — what it is, and the live alternative on Kunavo

Kling is Kuaishou's video model family, known for physical realism. Here's what the Kling API does, how its credit-based pricing works, and how to run text-to-video on Kunavo today with Google Veo 3.

Kling is Kuaishou's video model family — Kling 2.1 Pro and Kling 3.0 — known for strong physical realism and motion in both text-to-video and image-to-video. The Kling API generates short clips programmatically. This guide explains the family, its pricing model, and how to run text-to-video on Kunavo today.

Availability note. Kling is on Kunavo's roadmap but not currently enabled. The upstream path we source from is unstable, and Kuaishou prices Kling in credits with no clean public USD rate to anchor transparent pricing — so we don't list it yet. The live text-to-video model is Google Veo 3 on the same OpenAI-style endpoint; switching to Kling later is a one-word change to the model field.

Kling API pricing

Kuaishou bills Kling in credits rather than a public per-second dollar rate, so third-party reseller prices vary a lot and aren't directly comparable. Kunavo publishes a transparent per-video rate for its live model instead of a credit abstraction — which is why the honest recommendation today is Veo 3:

ModelPricing basisOn Kunavo
Kling 2.1 Pro / 3.0Kuaishou credits (no public USD/sec)Roadmap — not enabled
Veo 3 (Google)Per video, transparent USDLive, from $0.16 / 8s 720p

Text-to-video on Kunavo today

Kunavo exposes video generation through one OpenAI-style endpoint, POST /v1/video/generations. The live model is Veo 3, which produces cinematic clips with native audio. The request shape is identical to what a Kling call would be — only the model string differs:

text_to_video.py
import requests

# Live text-to-video on the same OpenAI-style endpoint. Swap the model
# string to Kling once it's enabled — the request shape is identical.
resp = requests.post(
    "https://api.kunavo.com/v1/video/generations",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={
        "model": "veo-3",   # live today; Kling on the roadmap
        "prompt": "a slow push-in on a neon-lit alley in the rain, cinematic",
        "duration": 5,
        "aspect_ratio": "16:9",
    },
    timeout=600,
)
print(resp.json()["data"][0]["url"])

The Kling 3.0 API

Searches for the Kling 3.0 API refer to Kuaishou's latest generation — longer clips and improved motion fidelity over 2.1 Pro. Kling 3.0 is the exact model reserved in Kunavo's catalog (as kling-3-0, $0.14/second), and it goes live once the upstream standard text-to-video path stabilizes. The request shape shown above already matches it.

The live alternatives: Veo 3, Seedance 2, Wan 2.7

Google Veo 3 is the strongest generally available text-to-video model and live on Kunavo, with native audio and transparent per-video pricing (Lite from $0.16, Fast from $0.32, Quality from $1.92 per 8s 720p clip). For Kling's signature physical realism, Seedance 2 (live, from $0.093/second) is the closest match on motion coherence, and Wan 2.7 (live, $0.096/second) is the budget cinematic pick. For the whole model landscape see the text-to-video API guide, and for image-to-video and the async task lifecycle the video docs.

FAQ

What is the Kling API?

Kuaishou's text-to-video / image-to-video model family (Kling 2.1 Pro, Kling 3.0), known for physical realism, billed in credits.

Can I use Kling on Kunavo today?

Not yet — it's on the roadmap. The upstream path is unstable and there's no clean public USD price, so we don't list it. Use Veo 3 on the same endpoint today.

How much does the Kling API cost?

Kuaishou bills in credits, so there's no single public USD rate. The transparent, live option on Kunavo is Veo 3 from $0.16 per 8s 720p clip.

What's the best Kling alternative?

Veo 3 — the strongest live text-to-video model on Kunavo, with native audio and transparent per-video pricing.