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 — Kling 4.0 でシネマティックな4K AI動画を生成 — 最新世代のフラッグシップ Kling ティアです。ネイティブオーディオ、マルチショットシーケンス、一貫したキャラクターで、テキストや画像を動画に変換。Kling 4.0 Lite なら無料で始められ、Fast、Standard、Pro、4K へステップアップできます。
- Kling 3.0 — のKling 3.0で動画を生成。ネイティブ4K出力、マルチショットシーケンス、統合オーディオ生成、画像から動画に対応。
- Kling 3.0 4K — Kling 3.0でネイティブ4KのAI動画を生成 — モデルが直接レンダリングする本物の3840×2160解像度を、同期オーディオと60fpsのモーションで実現します。アップスケールなし、アーティファクトなし。
- Kling 3.0 Turbo — Kling 3.0 TurboでAI動画を生成 — Kling 3.0の高速・低コストなバリアントです。マルチショットシーケンスとネイティブオーディオに対応し、720p（Standard）と1080p（Pro）でテキストから動画、画像から動画を作成できます。
- Kling O3 4K — Kling O3でネイティブ4KのAI動画を生成 — 同期オーディオ付きの本物の3840×2160出力を、Kling 3.0と同じ4Kクレジット料金で、より高速な生成で実現します。大量4K作業のために作られています。
- Kling 3.0 Omni — テキスト、画像、動画リファレンスから動画を生成・編集できる統合モデル
- Kling 3.0 Motion Control — リファレンス動画のモーションを静止画に転送し、アイデンティティを保持したスムーズなアニメーションを生成
- Kling O3 — Kling O3 を使用して、高速かつ手頃な価格の AI ビデオを生成します。テキストからビデオへ、画像からビデオへ、マルチショット シーケンス、ネイティブ オーディオ、4K 出力を、Kling 3.0 よりも低いクレジット コストで実現します。
- Kling O1 — 自然言語で動画を編集 -- 変更内容を記述するだけでモデルが処理します
- Kling Avatar V2 — あらゆるポートレートを音声同期リップシンク付きのトーキング動画に変換。1080p 48fps対応
- Kling 2.6 — 高品質AI動画のための決定版モデル。Kling 2.6は業界最高水準のモーション一貫性、リアルなリップシンク、豊かなサウンドデザインを、たった一つのプロンプトから実現します。
- Kling 2.6 Motion Control — 動画内の要素の動きを制御 -- パスの描画、リファレンスクリップからのモーション転送、最大6要素のアニメーション
- Kling 2.5 Turbo — Kling 2.5 Turboはテキストプロンプトまたは静止画像からネイティブオーディオ付き1080pクリップを生成します。5または10秒、70クレジットから。
- Kling 2.1 — Kling 2.1は静止画像をシネマティックなモーションにアニメーション化します。フレームをアップロードし、動きを説明すれば、一律70クレジットで5秒または10秒のクリップが得られます。
- Kling O3 Image — Kling O3 を使用して高品質の AI 画像を生成および編集します。リファレンス入力を使用したテキストから画像への生成と画像編集 — 1K から 4K までの解像度、複数のアスペクト比、画像ごとに 5 クレジット。
- Nano Banana 2 — Nano Banana 2 を使用して、超高速でフォトリアリスティックな AI 画像を生成します。幅広いアスペクト比にわたる 1K、2K、または 4K 解像度でのテキストからイメージへの生成およびイメージからイメージへの生成。
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
| Plan | Price | Credits |
|---|---|---|
| ベーシック | $19.90 per month | 2,000 credits |
| スタンダード | $49.90 per month | 5,200 credits |
| プロ | $99.90 per month | 10,400 credits |
Yearly plans
| Plan | Price | Credits |
|---|---|---|
| ベーシック | $199.00 per year | 24,000 credits |
| スタンダード | $499.00 per year | 62,400 credits |
| プロ | $999.00 per year | 128,800 credits |
Credit packs
| Plan | Price | Credits |
|---|---|---|
| ミニ | $9.90 one-time | 700 credits |
| スターター | $19.90 one-time | 1,480 credits |
| スタンダード | $49.90 one-time | 3,700 credits |
| プロ | $99.90 one-time | 7,400 credits |
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.