Kling AI releases Kling 4.0 Flash API
Kling 4.0 Flash API is available for text-to-video, image-to-video and Omni reference-to-video, generating videos from 3 to 20 seconds at 720P. Prompts support up to 26,000 English characters, 10 reference images and 5 reference videos.
Source: Kling AI API updates, checked Nov 4, 2026. Summarized from the provider’s announcement.