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LIMITED ROLLOUTKling 4.0 Flash: Specs, Who Can Use It & Limits
Updated · Checked against Kling's official pages
Kling 4.0 Flash is the lighter, faster model in the Kling 4.0 family, and the only part of Kling 4.0 you can use today. It makes 3–20 second clips at 720p. Kling is rolling it out to a limited group first, and its membership page lists it only on the Ultra annual plan.
- Status
- Live Limited rollout since Sep 28, 2026
- Who can use it
- Ultra Annual subscribers Listed as "Annual Early Access"
- Clip length
- 3–20 seconds Full Kling 4.0: 3–30 seconds
- Resolution
- 720p, 8-bit SDR Full Kling 4.0: up to 4K
- Keyframes
- Not supported No first/last frames or multi-keyframes
- Credit cost
- Not announced
What is Kling 4.0 Flash?
Kling describes Flash as built on Kling 4.0 and offering a subset of its capabilities, for faster and more affordable creation. Kling has not published Flash's credit price.
- Text-to-videoSupported
- Image-to-video (first frame)Supported
- Omni ReferenceSupported
- Up to 20 seconds in a single generationConfirmed
- 720p, 8-bit SDR outputConfirmed
- First & last framesNot supported
- Multi-keyframesNot supported
- 1080p, 4K or 10-bit HDRNot in Flash's specs
Sources: Kling 4.0 feature page and FAQ on kling.ai ↗, Kling 4.0 release note ↗.
Kling 4.0 Flash vs full Kling 4.0
Both columns come from Kling's own spec tables. "Not listed" means Kling's Flash table does not mention the item. The full Kling 4.0 is planned for October 2026.
| Kling 4.0 Flash | Kling 4.0 | |
|---|---|---|
| Available | Now, limited rollout | Planned for October 2026 |
| Clip length | 3–20 seconds | 3–30 seconds |
| Resolution | 720p | 720p / 1080p / 4K |
| Dynamic range | 8-bit SDR | 10-bit HDR at 1080p and 4K (coming soon) |
| Text-to-video | Yes | Yes |
| Image-to-video | Yes (first frame) | Yes |
| First & last frames | No | Yes |
| Multi-keyframes | No | Up to 10 |
| Omni Reference | Yes | Yes, up to 15 references |
| Audio and languages | Not listed | Two-channel stereo; 9 named languages "and more" |
| Video editing | Not listed | Up to 5 input clips, 30 seconds combined |
The full spec table for both models is on our Kling 4.0 status page.
Who can use Kling 4.0 Flash, and how to check
Checked on Kling's membership page, October 9, 2026.
- Kling 4.0 Flash appears only under the Ultra yearly plan, as "Annual Early Access"Confirmed
- Basic (free), Standard, Pro and Premier plans do not list itConfirmed
- Ultra yearly: US$1,429.99 per year, 26,000 credits a monthListed price
- Kling calls it a limited rollout and says to sign in to see if you have accessConfirmed
Kling's FAQ says to sign in to Kling Creator Studio to check whether Flash is available on your account. Prices can differ by region and promotion. For every plan and what is still unannounced, see Kling 4.0 pricing. We do not sell Kling plans or credits.
Kling 4.0 Flash FAQ
Is Kling 4.0 Flash free?
No. Kling's membership page lists Kling 4.0 Flash only on the Ultra yearly plan (US$1,429.99 per year). The free Basic plan does not include it.
Is Kling 4.0 Flash the same as Kling 4.0?
No. Flash is a lighter model built on Kling 4.0. It stops at 20 seconds and 720p, and it has no first/last frame or multi-keyframe control. The full Kling 4.0, with 30-second clips, 4K and up to 10 keyframes, is planned for October 2026.
Does Kling 4.0 Flash support keyframes?
No. Kling's FAQ says Flash does not support first/last frames or multi-keyframes. Image-to-video in Flash uses a first frame only.
Can Kling 4.0 Flash make 1080p or 4K video?
No. Kling's spec table lists 720p in 8-bit SDR for Flash. 1080p, 4K and 10-bit HDR are listed for the full Kling 4.0 only.
How much does a Kling 4.0 Flash video cost in credits?
Kling has not published it. We will add it here when Kling does.
Will Flash open to other plans?
Not announced. Kling has not said whether Flash or the full Kling 4.0 will come to Standard, Pro, Premier or free users.