Kling 4.0

Kling 4.0 is the latest flagship AI video generation model from Kuaishou, evolving into a true “AI Director” that generates high-fidelity video and synchronized audio simultaneously. It produces multi-shot sequences with synchronized native audio, lip-sync, and character consistency, supporting output at 4K resolution with physics-aware motion simulation. The platform is positioned for use cases including marketing and advertising videos, social media short-form content, film and series pre-visualization, gaming and virtual production cinematics, and educational or storytelling animations.

The website states that Kling 3.0 represents a breakthrough with a unified architecture that generates high-fidelity video and synchronized audio simultaneously, evolving from a simple generator into a professional AI Director. Kling 4.0 continues this evolution by offering features like Omni Reference, which takes several pictures of one person or product at once and builds a new scene that keeps all of them: the face, the hair, the jacket, and the label on the bottle.

The platform empowers creators across industries with professional AI-directed video production, including marketing and advertising professionals, social media content creators, film and series pre-visualization teams, gaming and virtual production studios, and educational or storytelling animators. It also suits indie filmmakers who want to turn script ideas into polished short films or proof-of-concept reels without a crew or equipment.

Users can start by purchasing a credit pack that fits their creative needs, as all plans are one-time purchases with no subscription needed. The Starter pack costs $9.9 for 99 credits at $0.1 per credit, while the Standard pack is $29.9 for 330 credits at $0.091 per credit. Credits never expire and allow full commercial usage and monetization of generated videos.

The Standard pack offers 330 credits for $29.9, providing watermark-free downloads, commercial use, and priority queue speed. The Pro pack costs $49.9 for 600 credits, adding access to the latest models. The Premier pack is $99.9 for 1250 credits, offering the best value at $0.08 per credit, highest priority queue, access to all models, and priority support.

Kling 3 AI offers refunds within the first 7 days of purchase, provided minimal usage has occurred. A full refund is available if the request is submitted within 7 calendar days and 10% or less of the purchased credits have been used. If more than 10% of credits are used, a proportional refund is calculated based on unused credits only.

Some users on Reddit say Kling 4.0 has exceptionally good movement and prompt understanding, along with very high quality voice acting in multiple languages. Reviewers also highlight the lip sync capabilities, noting that it can render actual music tracks against a black frame and combine them with the generated video for realistic results.

Public posts and comments on Reddit regarding Kling 4.0 date back to September 2026, with announcements stating that Kling 4.0 Flash was live for Ultra Yearly subscribers around that time. News articles from November 2026 discuss the tool's capabilities and its API release in October 2026.

The company provides a customer support email address at [email protected] for inquiries, including refund requests. Users are instructed to include their registered account email address, order number, purchase date, and reason for the refund request when contacting the support team.

The platform features Absolute Character Consistency, which locks subjects, props, and voices across long clips to prevent flickering or identity drift. Additionally, the Omni Reference feature takes several pictures of one person or product at once and builds a new scene that maintains consistency in the face, hair, jacket, and other details.

Kling 4.0 supports output at 4K resolution with physics-aware motion simulation and native 4K Ultra HD cinematic quality. It also includes a Physics-Aware Engine that eliminates artifacts and provides realistic motion and gravity, ensuring ultra-high-definition output with crisp text rendering.

The official website of Kling 4.0 is kling3ai.net.

Kling 4.0 has no reviews on Trustburn yet. Anyone who has used it can write the first review on its Trustburn page.