About Kling 4.0

kling4.co is an independent platform for generating video and images with the Kling family of AI models. You give it a text prompt or an image, and it returns a finished clip or picture in the browser. It runs 14 video models and 2 image models behind one account and one shared credit balance, and it shows the credit cost of a request before the request runs. This page is the authoritative record of what the site is, what it supports and what it charges; the model list, the free allowance and the prices below are generated from the site's live configuration rather than typed in, so they cannot fall behind the product.

Who operates kling4.co

kling4.co is operated by an independent team. It is an unofficial third-party service: it is not affiliated with, endorsed by or operated by Kuaishou, the company that develops the Kling models, and it is not the official Kling AI product. Product, billing and privacy questions go to support@kling4.co, which is monitored by a human on business days.

Models available on kling4.co

The site currently runs the 16 models below. Each links to its own page, where the resolutions, durations, input types and credit costs for that model are documented in full.

• Kling 4.0 — Generate 4K cinematic AI video with Kling 4.0 — our flagship latest-generation Kling tier.
• Kling 3.0 — Generate native 4K AI videos with Kling 3.0.
• Kling 3.0 4K — Generate native 4K AI video with Kling 3.0 — true 3840×2160 resolution rendered directly by the model, with synced audio and 60fps motion.
• Kling 3.0 Turbo — Generate AI video with Kling 3.0 Turbo — the fast, lower-cost variant of Kling 3.0.
• Kling O3 4K — Generate native 4K AI video with Kling O3 — true 3840×2160 output with synced audio, at the same 4K credit rate as Kling 3.0 but with faster generation.
• Kling 3.0 Omni — Generate and edit AI videos from text, images, and video references with Kling 3.0 Omni.
• Kling 3.0 Motion Control — Transfer motion from any reference video to a static image with preserved identity and smooth animation
• Kling O3 — Generate fast, affordable AI videos with Kling O3.
• Kling O1 — Edit videos with natural language — describe what to change and the model handles the rest
• Kling Avatar V2 — Turn any portrait photo into a talking video with Kling Avatar V2.
• Kling 2.6 — Generate cinematic AI videos with Kling 2.6.
• Kling 2.6 Motion Control — Control how elements move in your video — paint paths, transfer motion from reference clips, animate up to 6 elements
• Kling 2.5 Turbo — Kling 2.5 Turbo generates 1080p clips with native audio from a text prompt or a still image.
• Kling 2.1 — Kling 2.1 animates a still image into cinematic motion.
• Kling O3 Image — Generate and edit high-quality AI images with Kling O3.
• Nano Banana 2 — Generate ultra-fast photorealistic AI images with Nano Banana 2.

How credits work

The site uses a single credit balance that works across every video and image model — there is no separate video wallet and image wallet. The credit cost of a request is displayed before you run it, so a generation never costs more than the number you saw, and a generation that fails is refunded automatically. Credits bought in a pack do not expire.

The free tier

• 100 credits are granted when you create an account — no card, no subscription. They do not expire.

Plans and prices

Subscriptions grant credits on a recurring basis; credit packs are one-time top-ups that can be bought at any time and stack on top of a plan. Current promotions and checkout are on the pricing page.

Monthly plans

Yearly plans

Credit packs

Refunds

Credits for a failed generation are returned automatically, with one exception: a generation blocked for breaking the content rules is not refunded. Billing questions and refund requests go to support@kling4.co; the applicable terms are on the terms of service page.

Content and usage rules

Generations made on kling4.co may be used commercially, subject to the terms of service, and downloads carry no watermark on any plan. Prompts and outputs pass through automated safety filters and provider-side moderation; content that breaks the acceptable-use rules can be blocked before it runs or removed afterwards. Reports go to support@kling4.co with the subject line "Report". How personal data is handled is documented on the privacy policy page.

Frequently asked questions

What is kling4.co?

kling4.co is an independent platform that runs Kling AI video and image models in the browser. You give it a text prompt or an image, pick a model, and it returns a video or an image. Everything runs server-side; there is nothing to install and no local GPU is involved.

Is kling4.co the official Kling AI site?

No. kling4.co is an independent third-party platform. The Kling models are developed by Kuaishou, and this site is not affiliated with, endorsed by or operated by Kuaishou. What the site provides is access to those models under one account and one credit balance.

Is kling4.co safe to use?

Payments are handled by the payment provider and card details never reach this site. Generations are private to your account. Account and data handling are documented on the privacy policy page, and the acceptable-use rules are in the terms of service.

Do I need a credit card to try it?

No. Creating an account grants a starting credit balance with no card and no subscription, and that balance is enough to run a generation on the entry-tier model. Paying is a separate, later decision.

Are the videos watermarked?

No. Downloads are watermark-free on every plan, including generations paid for with the free signup credits.

What happens if a generation fails?

Credits for a failed generation are returned automatically. The credit cost is also shown before a generation runs, so a request never costs more than the number you saw.

Can I use the output commercially?

Yes, subject to the terms of service. Output is watermark-free on every plan, which is usually the practical blocker elsewhere.