Kling 4.0 is live on ImagineToVideo since October 26, 2026. Native 30-second generation in one pass.
From 35 credits for 5 seconds at 720p; 1080p and 21:9 available.
Kling 4.0 AI Video Generator
Kling 4.0 is live here: native 30-second videos in one pass with stereo audio, from text or start/end frames, at 720p or 1080p. No Kling subscription needed.
The generator starts on Kling 4.0. Switch models in the same menu to compare with Kling V3 Omni, Seedance or Wan.
First video from $0.99 · No subscription needed
Kling 4.0 vs Kling 3.0: What Changed
| Kling 3.0 | Kling 4.0 | |
|---|---|---|
Max duration | 15 seconds | 30 seconds per generation |
Keyframes | Start and end frame | Up to 10 keyframes |
References | Up to 7 reference images (Kling V3 Omni) | Up to 15: up to 10 images, 5 videos and 7 subjects |
Resolution | Up to 1080p | 720p and 1080p on ImagineToVideo; 4K and 21:9 announced fal's public Kling 4.0 API exposes 720p and 1080p plus a 21:9 aspect ratio; Kling announces 4K but the API does not offer it yet. |
HDR | Not offered | 10-bit HDR, per Kling Not exposed in fal's Kling 4.0 API. |
Audio | Native audio | Stereo, more accurate lip sync, multiple languages and accents |
Video extension | Not offered on ImagineToVideo | Extend an existing clip on Kling's platform; up to two minutes announced as coming soon. Not exposed in the API yet. |
Flash variant | None | Kling 4.0 Flash, up to 20 seconds; early access for Kling Ultra Yearly subscribers from September 28 |
Kling 4.0 figures come from Kling's September 28 announcement, its October 15 launch release and fal's public Kling 4.0 API schema, checked October 26, 2026. Kling 3.0 figures describe Kling V3 and V3 Omni as offered on ImagineToVideo today.
Kling 4.0 Release Date and Timeline
This section is updated whenever Kling or fal publishes new dates.
February 2026
Kling 3.0 released.
September 28, 2026
Kling 4.0 announced. Kling 4.0 Flash opens to Ultra Yearly subscribers.
October 15, 2026
Kling 4.0 officially launches on Kling's own platform. API access for developers is announced as coming soon.
October 23, 2026
fal opens its Kling 4.0 API to all customers with published pricing: $0.157 per second at 720p, $0.235 at 1080p.
October 26, 2026
Kling 4.0 goes live on ImagineToVideo: text to video, image to video with optional end frame, multi-shot prompts, 720p/1080p, 3–30 seconds, stereo audio.
How to Access Kling 4.0
Since October 15, 2026, the full Kling 4.0 model is available on Kling's own platform, with native generation of up to 30 seconds in a single pass. Before that, only Kling 4.0 Flash was open, to Kling Ultra Yearly subscribers, from September 28.
Kling 4.0 is on ImagineToVideo since October 26, 2026, through fal's public API, which fal opened to all customers on October 23. You get text to video, image to video with an optional end frame and multi-shot prompts, at 720p or 1080p, 3 to 30 seconds, with stereo audio, in the same model menu as every other model and with the same credits. Reference-to-video (up to 15 references), video editing and the 4K/HDR output Kling announced are not exposed by the API yet, so they are not on the site yet.
What You Can Make with Kling 4.0
30-Second Ads
A complete 30-second spot in one generation instead of stitching two 15-second clips, with stereo audio and lip-synced voiceover.
Multi-Keyframe Storytelling
Split one generation into shots with per-shot prompts and durations (multi-shot prompts are live here); pin up to 10 keyframes on Kling's platform to control how a scene unfolds beat by beat.
Music Video with a Consistent Character
Feed up to 15 references across images, video and audio so the same performer and style carry through the whole track. Reference inputs are a Kling 4.0 API feature we have not exposed yet; start/end frames are available now.
Product Video in 1080p Today, 4K Announced
Run product shots at 1080p on ImagineToVideo now. Kling has announced 4K with 10-bit HDR for the model; it arrives here when fal's API exposes it.
Kling 4.0 on ImagineToVideo
No separate Kling account
Use Kling next to Seedance and VEO from one ImagineToVideo account. No Kling subscription needed.
Credits work across all models
The credits you buy work on Kling 4.0, Kling V3, V3 Omni, Seedance, VEO and Wan alike. A 5-second Kling 4.0 clip at 720p costs 35 credits.
Ultimate gets priority access
The Ultimate plan includes priority access to all models, Kling 4.0 included, so Ultimate members are first on new releases.
Frequently Asked Questions
When is the Kling 4.0 release date?
Kling 4.0 officially launched on October 15, 2026. Kling announced it on September 28, 2026, when Kling 4.0 Flash also opened to Kling Ultra Yearly subscribers.
Is Kling 4.0 available now?
Yes, twice over. Kling 4.0 has been on Kling's own platform since October 15, 2026, and on ImagineToVideo since October 26, 2026, where you can run it from the same account and credits as Kling V3, Kling V3 Omni, Seedance and Wan.
What is Kling 4.0 Flash?
Kling 4.0 Flash is the early variant Kling opened on September 28, 2026 to Kling Ultra Yearly subscribers, before the full launch on October 15. It generates up to 20 seconds per clip, compared with up to 30 seconds for the full Kling 4.0.
Is there still a Kling 4.0 beta?
No. The early-access phase was Kling 4.0 Flash for Kling Ultra Yearly subscribers. Since the full launch on October 15, 2026, Kling 4.0 is available on Kling's own platform.
Is there a Kling Motion Control 4.0?
Kling's September 28 announcement does not mention a new Motion Control version. Kling 3.0 Motion Control remains the current release.
Is the Kling 4.0 API available?
Yes. fal opened its Kling 4.0 API to all customers on October 23, 2026, priced per second of output: $0.157 at 720p and $0.235 at 1080p. ImagineToVideo runs Kling 4.0 through that API since October 26, 2026, so you do not need your own API key or a Kling subscription.
How long can Kling 4.0 videos be?
Up to 30 seconds per generation for the full release, double Kling 3.0's 15 seconds. Kling 4.0 Flash is capped at 20 seconds. Kling 4.0 can also extend an existing clip.
How much does Kling 4.0 cost on ImagineToVideo?
Kling 4.0 is priced per clip in credits, shown before you generate: 5 seconds at 720p costs 35 credits, 5 seconds at 1080p 50 credits, 10 seconds at 1080p 100 credits and a full 30 seconds at 1080p 320 credits. The $0.99 Starter Pack (45 credits, one-time, no subscription) covers a 5-second Kling 4.0 clip at 720p.
Which Kling 4.0 features are not on ImagineToVideo yet?
Reference-to-video with up to 15 references (images, videos and subjects), video editing, and the 4K and 10-bit HDR output Kling has announced. fal's Kling 4.0 API exposes 720p and 1080p today; we add the remaining features as the API opens them.
Generate Your First Kling 4.0 Video
Kling 4.0 is live on ImagineToVideo. Start with the $0.99 Starter Pack: 45 credits, one-time, no subscription.