What it does
Kling 4.0 is Kling AI's video model that combines generation, multimodal references and editing in one model. It generates native clips of 3 to 30 seconds from text or images, takes up to 15 combined reference assets, supports up to 10 keyframes and generates audio with dialogue. Kling announced the full model for October 2026, with early access to its redesigned creation page from 28 September.
Official source 1 ↗Features
- Native 30-second clips. Generates clips of 3 to 30 seconds in one pass, leaving room for long takes, multi-shot sequences and continuous scenes. Kling 3.0 is limited to 15 seconds. Official source 1 ↗ · Official source 2 ↗
- Up to 10 keyframes. Up to 10 flexible keyframes set visual states at points on the timeline, such as when characters appear, scenes change or products are revealed; start and end frames can guide a transition. Official source 1 ↗ · Official source 2 ↗
- Omni Reference with 15 assets. One generation can combine up to 15 reference assets: up to 10 images, up to 5 videos totalling 30 seconds, and up to 7 subjects, with voice references for a character's vocal identity. Official source 1 ↗
- Edit and restyle existing footage. Add, replace or remove elements, change backgrounds or adjust expressions, colours and camera angles in existing footage, or recreate a trending video's pacing with your own product. An edit task takes up to five video inputs totalling 30 seconds. Official source 1 ↗
- Native audio, dialogue and lip sync. Generates dialogue, sound effects and ambient sound with improved lip sync and two-channel stereo; dialogue is supported in 9 languages. Official source 1 ↗
- Long prompts and on-screen text. Accepts prompts of up to 8,000 tokens and keeps multilingual on-screen text, logos and emojis more stable through camera moves, in languages including Chinese, English, Japanese and Hindi. Official source 1 ↗
- 4K and 21:9 output. Kling's launch guide says Kling 4.0 supports 4K output and 21:9 ultrawide video, with 10-bit HDR at 1080p and 4K still coming. Official source 1 ↗
- Timeline, Canvas and Agent workspace. The redesigned creation page takes text, images, videos and audio references in one input box, offers Grid and List views, and adds timeline editing, a Canvas for organising assets and a conversational Agent. Official source 1 ↗
Pricing & free limits
Free generation options whose credits and features depend on account and promotional conditions; exports generally include a watermark. Official source 1 ↗
Needed for watermark removal and for some models, higher resolutions and advanced features. Generation cost is shown before creating a video. Official source 1 ↗
Billing details
Billing details were not established by the checked official sources.
Free access & limits
Free generation is offered to eligible users, with credits and features that depend on account and promotional conditions; free-tier exports generally include a watermark. Official source 1 ↗
Best for & limitations
Brand ads and commercials: recreate a creative concept, keep product details consistent and build longer promotional sequences. Official source 1 ↗
Short films and narrative video: combine 30-second generation, character performance and keyframes for more cohesive scenes. Official source 1 ↗
Pre-production: turn storyboards and visual references into concept videos and scene previews. Official source 1 ↗
- No API or Enterprise access yet. Kling's API prepaid video packages and its Enterprise plans state that they do not support Kling 4.0, so the model is for use in the creation app only for now. Official source 1 ↗ · Official source 2 ↗
- Staged rollout. Kling says feature availability may vary during the initial rollout, and its launch guide and other announcements differ on which output options (such as 4K and 21:9) are live at launch. Official source 1 ↗
- Watermarked free exports. Free-tier exports generally include a watermark; removing it requires a membership. Official source 1 ↗
- 10-bit HDR not yet available. 10-bit HDR at 1080p and 4K is announced as coming soon. Official source 1 ↗
- Commercial use depends on plan. Commercial use applies to eligible outputs under the paid-service terms, and you need rights to any reference images, music or logos you upload. Official source 1 ↗