Kling 4.0 Guide: Settings, Credits and Video Creation

Kling 4.0 is available in the homepage generator through APIMart’s kling-v4. Select Kling 4.0 explicitly: the default generator may use another model. This guide describes our current integration, not every feature a supplier may offer.

Choose your settings

For image-to-video, upload the first frame before adding middle or last frames. A prompt is optional with a first-frame image; text-only generation needs a prompt. Middle images follow their displayed order. Omni accepts up to 10 images, five videos totaling no more than 30 seconds, and three audio clips of 5–30 seconds, with 15 references in total. Edit uses one 3–30 second source video and optional images. Extend adds 3–30 seconds to one source video, with an optional last frame. Flash, 4K, 120-second generation, Elements and Kling Image 4.0 are not integrated.

For editing and generation with reference video, the approved input tier is 16.92 credits per billable second at 720p or 25.38 at 1080p. Billable time is output seconds plus the greater of output seconds and total input-video seconds rounded up. The order total is rounded up once. Extension uses the ordinary output rate and charges only for the added segment. Review the live quote before submitting.

Generate your video

Describe the subject, one clear action, camera movement and sound. Select Kling 4.0, add your own frame images if needed, and choose duration and resolution. Sign in and check the full credit quote before selecting Generate. Follow the task in Create, then watch and download the completed video. Reusing a result restores a draft; it does not submit a new paid task by itself.

Credits and results

Kling 4.0 requires enough paid-source credits for the whole order. Current examples: 720p 3 seconds costs 85 credits, 720p 5 seconds 142, and 1080p 5 seconds 212. Longer videos and higher resolutions cost more; the live quote is authoritative. Eligible daily rewards can be used with other models within free-cost limits, not Kling 4.0. Free credits expire at 00:00 UTC; paid credits do not expire. See plans and billing.

Three 720p, 3-second production checks passed for text, first-frame and first/middle/last-frame inputs. That does not establish quality across every setting. Gallery clips have unverified original models and are creative inspiration, not Kling 4.0 proof. Adapt ideas from the prompt guide.