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Kling 4.0 vs Kling 4.0 Flash

Kling 4.0 and Kling 4.0 Flash, both by Kuaishou, side by side: what each does, what a run costs in credits, and when to pick which. Both run on Kinoseed with one plan.

Try Kling 4.0Try Kling 4.0 Flash

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Kling 4.0 Prompt: A matte black perfume bottle stands on a dark stone plinth in a black studio, the camera slowly orbits it, a fine mist drifts across and a single hard light catches the edge of the glass, monochrome, the soft hiss of the spray and a low ambient hum
Kling 4.0 Flash Prompt: A brushed silver wristwatch lies on a matte white stone slab in a soft grey studio, the camera glides in slowly as a band of light sweeps across the steel case and the second hand ticks, black and white, the quiet ticking of the watch and a soft low hum

Side by side

FeatureKling 4.0Kling 4.0 Flash
Made byKuaishouKuaishou
What it doestext or image to video, 5, 10 or 15 second clips, up to 1080ptext or image to video, 5, 10 or 15 second clips, up to 720p
Text to videoYesYes
Start imageYesYes
End imageYes, optionalNo
Clip length5, 10 or 15 seconds5, 10 or 15 seconds
Resolution720p or 1080p720p
SoundIncluded in the priceIncluded in the price
Price for the benchmark clip150 credits (5 seconds at 720p)90 credits (5 seconds)
Cheapest run150 credits for a 5-second clip at 720p90 credits for a 5-second clip

Prices are the credits a run spends, from the same rates the studio and the API charge.

Which to pick

  • Kling 4.0 Flash costs less per clip: 90 credits for 5 seconds, against 150 for 5 seconds at 720p on Kling 4.0.
  • Kling 4.0 takes an end image too, so you can fix the first and the last shot.

About Kling 4.0

Kling 4.0 is the fourth major version of Kling, the video model from Kuaishou. In Kinoseed it works from a text prompt alone, or from a start image with an optional end image, so you can fix the first and the last shot and let the model move between them.

Clips are 5, 10 or 15 seconds long in 16:9, 9:16 or 1:1, at 720p or 1080p. There is no sound switch: the model makes sound with the picture, and it is part of the price.

Kling 4.0: prices and examples

About Kling 4.0 Flash

Kling 4.0 Flash is the faster, lower-cost tier of Kling 4.0, the video model from Kuaishou. It takes a text prompt or a start image and renders at 720p.

Clips are 5, 10 or 15 seconds long. From text you choose 16:9, 9:16 or 1:1; from an image the clip follows the picture's shape. Sound is made with the picture and is part of the price.

Kling 4.0 Flash: prices and examples

Questions

What is the difference between Kling 4.0 and Kling 4.0 Flash?
Kling 4.0 is the fourth major version of Kling, the video model from Kuaishou. In Kinoseed it works from a text prompt alone, or from a start image with an optional end image, so you can fix the first and the last shot and let the model move between them. Kling 4.0 Flash is the faster, lower-cost tier of Kling 4.0, the video model from Kuaishou. It takes a text prompt or a start image and renders at 720p.
Which is cheaper, Kling 4.0 or Kling 4.0 Flash?
Kling 4.0 starts at 150 credits for a 5-second clip at 720p; Kling 4.0 Flash at 90 credits for a 5-second clip. Runs spend credits from a plan.
Should I use Kling 4.0 or Kling 4.0 Flash?
Kling 4.0 Flash costs less per clip: 90 credits for 5 seconds, against 150 for 5 seconds at 720p on Kling 4.0. Kling 4.0 takes an end image too, so you can fix the first and the last shot.

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