Make 720p video with Kling 4.0 Flash, the Kling 4.0 model built for speed and a lower price. Start from a prompt, a first frame, or reference images and videos; every clip comes with its own sound, from 3 to 20 seconds.
Both clips were made with Kling 4.0 Flash at 720p, 5 seconds, from the prompt alone. The previews start muted. Tap Recreate to put the same prompt into the generator above.
16:9 · 5sA golden retriever sprints along a beach at sunset, leaps and catches a red frisbee in mid-air, sand spraying, waves rolling in, ocean wind and a happy bark.
A dog sprints, leaps and catches a frisbee in one 5-second take, with waves and wind on the soundtrack. This clip took under two minutes from prompt to download.
9:16 · 5sVertical shot in a busy restaurant kitchen: a young chef wipes the rim of a plate, turns to the camera with a grin and says: "Tonight's special is ready." Pans clattering, kitchen noise.
Write the line in quotes and the chef says it, with the kitchen clattering behind. Flash makes audio with every clip and offers the same 16:9, 9:16, 1:1 and 21:9 shapes as Kling 4.0.
| Output | 720p only, MP4 |
|---|---|
| Clip length | 3 to 20 seconds, in whole seconds |
| Shapes | 16:9, 9:16, 1:1 and 21:9; a first-frame clip follows the frame |
| Sound | Native audio and speech with every clip; no off switch |
| Inputs | Text, a first frame, or up to 10 reference images and 5 reference videos (20 seconds in total) |
Same family, both on aiMakeVideo, and Kling 4.0 has its own page. Pick by what the shot needs:
| What differs | Kling 4.0 Flash | Kling 4.0 |
|---|---|---|
| Sharpest output | 720p | 1080p |
| Longest clip | 20 seconds | 30 seconds |
| Frame control | First frame only | First and last frames |
| Price per second | About 40% lower at 720p | Higher, and more again at 1080p |
Describe who moves, how the camera follows and what we hear. Put any spoken words in quotes.
Use no image for text to video, add one first frame to start from your picture, or switch to Reference for up to 10 images and 5 videos, named @Image1 or @Video1 in the prompt.
Pick 3 to 20 seconds; the exact cost appears on the Generate button. Keep the take you like, or re-run it on Kling 4.0 when you need 1080p.
Vertical 9:16 videos for feeds, where many takes matter more than 1080p.
Test camera moves and timing at a lower price, then re-render the winner with Kling 4.0.
Reference images and short videos keep a product or a character looking the same.
Pick the plan that matches your pace
Subscribers get +20% extra credits at the same price
≈ 18 videos5s · 480p each
Subscribers receive: 1,080
≈ 38 videos5s · 480p each
Subscribers receive: 2,280
≈ 110 videos5s · 480p each
Subscribers receive: 6,600
≈ 240 videos5s · 480p each
Subscribers receive: 14,400
Subscriptions renew automatically at the price shown until you cancel, and we'll tell you before any price change. Cancel anytime in Settings → Billing; you keep access until the paid period ends. Credit packs are one-time and expire 180 days after grant. Prices include any tax collected at checkout. Refunds & Billing · Terms · Privacy Policy · Contact Us · Pricing
aiMakeVideo is an independent AI video platform and is not affiliated with the model providers.
Kling 4.0 Flash is the fast, lower-cost model in Kuaishou's Kling 4.0 family. It makes 720p clips of 3 to 20 seconds with sound from text, a first frame, or reference images and videos.
Credits, billed per second of video; adding reference videos raises the price. You see the exact cost on the Generate button before you start, and credits are refunded automatically if a run fails for a technical reason.
Flash stops at 720p and 20 seconds and starts from a first frame only, but each second costs less. Kling 4.0 adds 1080p, clips up to 30 seconds and a last frame.
Yes. Every clip without a reference video comes with native audio: ambience, effects and speech, and there is no switch to turn it off. When you add a reference video, that video's own sound is not kept.
Yes. Add one image as the first frame, or switch to Reference for up to 10 images and 5 short videos (20 seconds combined). Only use material you own or have permission to use.
Not on aiMakeVideo. Even a 3-second Flash clip costs more than the free signup credits cover, so it needs a plan or credit pack. The free trial, where offered, makes one short Seedance 1 Pro Fast video with no account.
No. Kling is Kuaishou's model, and the name belongs to its owner. aiMakeVideo is an independent platform, not affiliated with or endorsed by Kuaishou; it lets you run Kling 4.0 Flash in the browser next to other video models.