Kling 4.0 Flash is a fast video generation model from Kuaishou that produces 720p clips of 3 to 20 seconds from a text prompt or a starting image, in 16:9, 9:16, 1:1 or 21:9 aspect ratios.
$0.047
Share of requests served without a server error. Client errors (4xx) do not count.
Works with the OpenAI SDK pointed at our base URL. Every parameter is in the .
Length of video generated per day on NagaAI, counted since November 2026.
Kling 4.0 Flash is a fast video generation model from Kuaishou that produces 720p clips of 3 to 20 seconds from a text prompt or a starting image, in 16:9, 9:16, 1:1 or 21:9 aspect ratios.
On NagaAI, Kling Video 4.0 Flash costs $0.047 per second. You pay only for what you use, with no subscription.
It takes text and images as input and returns video.
Create an API key, copy the model ID from the top of this page and send requests with the OpenAI SDK pointed at NagaAI. The API section on this page has a ready example.
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