Kling AI Releases Kling 4.0 With Expanded Public API Access and 30 Second Video Clips

Kling AI has released Kling 4.0, expanding public API access and enabling the creation of native video scenes up to 30 seconds long. The multimodal tool is now integrated into the fal, Runway, and Higgsfield platforms, allowing developers to embed the video generation model into their workflows. The system supports combining up to 15 different image, video, or voice assets in a single generation and uses up to 10 keyframes for scene progression.