Kling 4.0 Guide

Kling 4.0 is the newest video generation model from Kling AI, part of Kuaishou. It was announced on September 28, 2026, with a full release planned for October 2026.

Kling 4.0’s big step: longer, more controlled shots in a single generation.

Kling 4.0 Flash

A lighter version, in limited early access since September 28, first for Ultra yearly subscribers

Kling 4.0

Rolling out gradually during October 2026

API

Not yet offering Kling 4.0 or 4.0 Flash as of mid-October

Some reports say Flash is limited to shorter, lower-resolution clips. Check what your Kling account shows.

30-second clips

Up to 30 seconds in a single generation

Keyframes

Place up to 10 keyframes on the timeline to guide the shot and camera

Omni Reference

Use up to 15 reference assets for characters, products, and scenes

Resolution

Up to 4K

Audio

Stereo sound with multilingual lip-sync

• 10-bit HDR output
• Extending clips up to two minutes

Kling lists these as coming soon, so do not plan projects around them yet.

Kling has not published per-video credit costs for Kling 4.0 or 4.0 Flash yet. Kling sells monthly and yearly plans with credits, and early access started with the top Ultra yearly plan. Check Kling’s membership page for current plans before buying.

• Plan the shot as a mini scene with a beginning, middle, and end
• Use keyframes for key moments, such as a reveal or a turn
• Keep one main subject and one location per clip
• Describe camera movement clearly

• Subject and action
• Setting, time of day, and lighting
• Camera: shot type and movement
• Style and mood
• Sound and dialogue in quotes

A chef plates a dessert in a busy restaurant kitchen at night, slow push-in to a close-up of the plate, warm lighting, steam and clinking pans, the chef says “Service!”, cinematic and realistic.

• Upload clear images of your character from several angles
• Add product shots with readable labels
• Use the same references across every clip
• Describe the references by role in your prompt

• Product ads up to 30 seconds
• Short film scenes
• Music video shots
• Social clips with dialogue
• Brand stories with consistent characters

• Use only faces and references you have permission to use
• Do not create misleading videos of real people or events
• Respect copyrighted characters and brands
• Label realistic AI video where platforms require it
• Check commercial-use rights for your plan