Kling AI: Kling V4 · fastrouter

Kling V4 (Kling 4.0) is Kuaishou's latest AI video generation model, producing clips of up to 30 seconds at 720p or 1080p with stable motion, complex camera movement, and native audio. Through Pollo it supports text-to-video, image-to-video with optional end frame, reference-to-video with up to 15 reference items (images, videos, voice audio, and saved elements) mentioned in the prompt as [@name], and keyframe-to-video with 2 to 10 ordered keyframes for control over characters, scenes, and story progression. Suited to cinematic storytelling, multi-shot narrative sequences, and branded content with recurring characters.

Base modelAll models on this baseAll models of the providerto the provider

All Kuaishou Kling models at every provider

Price, $ $0.67 / second

Context 400 000

Max output 4 096

Accepts audio, images, text, video

Last checked 04.11.2026 12:00:14 UTC

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