Castaly · Blog · Models
Kling 3.0, 3.0 Omni, 3.0 Turbo, O1, 2.6 and 2.5 Turbo Compared
Six Kling video models side by side: per-second prices, what audio and reference videos add, lengths, 4K, and which references each one accepts.
Castaly has six Kling video models: Kling 3.0, 3.0 Omni, 3.0 Turbo, O1, 2.6 and 2.5 Turbo. The names suggest a simple ladder, but they do not line up that way. Turbo is not the cheap option, Omni and O1 take the most references, and only two of the six render 4K.
This guide compares all six on price, length, audio and references, so you can pick one before you spend anything.
The six at a glance
| Model | Resolutions | Lengths | Generate audio | References in the Studio |
|---|---|---|---|---|
kling-3.0 |
720p, 1080p, 4K | 3, 5, 8, 10, 15 s | Yes, +50% | First frame, first and last frame, or one image and one video |
kling-3.0-omni |
720p, 1080p, 4K | 3, 5, 8, 10, 15 s | Yes, +25–33% | First or last frame, or up to 7 images and elements plus 1 video |
kling-3.0-turbo |
720p, 1080p | 3, 5, 8, 10, 15 s | No | First frame |
kling-o1 |
720p, 1080p | 3, 5, 8, 10 s | Yes, no extra cost | First or last frame, or up to 7 images and elements plus 1 video |
kling-2.6 |
720p, 1080p | 5, 10 s | 1080p only, +100% | First frame, first and last frame, or one image and one video |
kling-2.5-turbo |
720p, 1080p | 5, 10 s | No | First frame |
All six offer 16:9, 9:16 and 1:1.
Price per second
| Model | 720p | 1080p | 4K |
|---|---|---|---|
kling-2.5-turbo |
$0.03822 | $0.0637 | — |
kling-2.6 |
$0.03822 | $0.0637 | — |
kling-3.0 |
$0.07644 | $0.10192 | $0.3822 |
kling-3.0-omni |
$0.07644 | $0.10192 | $0.3822 |
kling-o1 |
$0.07644 | $0.10192 | — |
kling-3.0-turbo |
$0.10192 | $0.1274 | — |
Kling 3.0 Turbo costs a third more than Kling 3.0 at 720p and a quarter more at 1080p. The two 2.x models cost half as much as the 3.0 family at 720p.
Audio and reference videos
Three models change rate with options:
| Model | Option | 720p | 1080p | 4K |
|---|---|---|---|---|
kling-3.0 |
Generate audio | $0.11466 | $0.15288 | $0.3822 |
kling-3.0-omni |
Generate audio | $0.10192 | $0.1274 | $0.3822 |
kling-3.0-omni |
Reference video | $0.11466 | $0.15288 | $0.3822 |
kling-o1 |
Reference video | $0.11466 | $0.15288 | — |
kling-2.6 |
Generate audio | — | $0.1274 | — |
kling-2.6 |
Audio with a specified voice | — | $0.15288 | — |
At 4K, Kling 3.0 and 3.0 Omni charge the same with or without these options. Kling O1 has an audio switch that does not change its price. Kling 2.5 Turbo bills at least 5 seconds.
What a 5-second clip costs
| Model | 720p | 720p + audio | 1080p | 1080p + audio | 4K |
|---|---|---|---|---|---|
kling-2.5-turbo |
$0.19 | — | $0.32 | — | — |
kling-2.6 |
$0.19 | — | $0.32 | $0.64 | — |
kling-3.0 |
$0.38 | $0.57 | $0.51 | $0.76 | $1.91 |
kling-3.0-omni |
$0.38 | $0.51 | $0.51 | $0.64 | $1.91 |
kling-o1 |
$0.38 | $0.38 | $0.51 | $0.51 | — |
kling-3.0-turbo |
$0.51 | — | $0.64 | — | — |
The final charge follows the length the provider reports for the finished clip, so treat these as the Studio's estimate for the length you request.
How the models differ
Kling 3.0: the all-rounder
Kling 3.0 covers the widest range: 720p to 4K, 3 to 15 seconds, and optional audio. With one reference image and one reference video it does motion control: the character from the image performs the movement from the video. It can also start from a first frame, or a first and a last frame.
Kling 3.0 Omni and Kling O1: many references
Omni and O1 accept up to seven references in one request, mixing images and elements with up to one reference video. That is the choice when a shot needs several characters or props to stay recognisable. Omni adds 4K, 15-second clips and up to six storyboard shots. O1 stops at 1080p and 10 seconds and does not do multi-shot. On both, audio has to be off when a reference video is attached.
Kling 3.0 Turbo: simple inputs, higher rate
Turbo takes a prompt, or a prompt with a first frame, and nothing else. It has no audio switch and stops at 1080p, but supports prompts written as up to six shots. Choose it when you like its results for a shot, not to save money.
Kling 2.6 and 2.5 Turbo: the budget pair
Both render 5 or 10 seconds at half the 3.0 family's 720p rate. Kling 2.6 adds native audio at 1080p and the same motion control as Kling 3.0. Kling 2.5 Turbo is text-to-video or first frame only, with no audio.
Which Kling to use
- Cheapest usable clip: Kling 2.5 Turbo or 2.6 at 720p, $0.19 for 5 seconds.
- Cheapest 1080p with sound: Kling O1, whose audio switch adds nothing: $0.51 for 5 seconds, against $0.64 on Kling 2.6 or 3.0 Omni and $0.76 on Kling 3.0.
- 4K: Kling 3.0 or 3.0 Omni at $0.3822 a second.
- Several consistent characters or props: Kling 3.0 Omni, or O1 if 1080p and 10 seconds are enough.
- Copy a movement onto a character: Kling 3.0, or Kling 2.6 for less.
FAQ
Is Kling 3.0 Turbo faster or cheaper than Kling 3.0?
Castaly does not publish speed figures. On price it is more expensive: $0.10192 a second at 720p against $0.07644.
Which Kling models render 4K?
Kling 3.0 and Kling 3.0 Omni, at $0.3822 a second with or without audio.
Does turning on audio change the price?
On Kling 3.0 it adds 50%, on 3.0 Omni 25% to 33%, and on Kling 2.6 it doubles the 1080p rate. Kling O1's audio switch costs nothing. Kling 3.0 Turbo and 2.5 Turbo have no audio.
What is the difference between Omni and O1?
Both accept up to seven references. Omni adds 4K, 15-second clips and multi-shot storyboards; O1 is limited to 1080p and 10 seconds.