Kling 4.0 Guide

Start with the model directory

Kling 4.0 is available on SeaDance. Open the model directory, select the model in the generator, and check the live quote in the generator before submitting. This guide deliberately leaves its price, duration options and output resolution to that live interface. A capability described by the manufacturer does not establish a purchasable SeaDance setting.

If you already have a scene brief, save it before choosing any options. State the subject, setting, visible action and endpoint in separate sentences. Then add a camera direction and the intended sound. This makes it easier to see whether a generation missed your story or whether the request itself left the story undecided.

What Kuaishou has actually described

According to Kuaishou’s official announcement, Kling 4.0 emphasizes steadier large-scale motion, more complex camera work, and flexible visual references. Its announcement includes character sheets among the supported reference types. These are developer claims about the model, not a SeaDance benchmark or a guarantee of the same result for every scene.

According to Kuaishou’s Kling 4.0 launch overview, audiovisual improvements include closer coordination between dialogue and visible performance. Its broader keyframe and extended creative controls are not available on SeaDance. Use the ordinary scene and image inputs shown in the generator rather than assuming the manufacturer’s complete creation interface has been reproduced.

These claims make moving subjects and a clearly staged performance suitable subjects for a test. They do not establish that this model is the right choice for every product or character. Define the outcome you need, then judge the generated take against that outcome rather than against the excitement of a launch announcement.

Build a small request you can evaluate

Choose a scene with a clear beginning and end. A person opening a letter, a courier stopping outside a shop, or a ceramic cup turning toward the light is easier to diagnose than an entire advertisement with several locations. Keep the visible action readable and give the camera a reason to move.

In the generator, select the intended text or image workflow, check the displayed input options, and read the quote. For an image-based scene, use an approved image that agrees with the written clothing, lighting and setting. Do not attach a bright outdoor portrait while demanding that every feature of a dim indoor opening remain unchanged.

Check the resulting scene from beginning to end. Inspect the moment an object is touched, any face turn, the spoken line and the final pose. If the beginning looks appealing but the final object has changed shape, record that defect. The output should solve your brief, not merely supply an attractive opening still.

A known baseline: Kling 3.0 on SeaDance

All dollar equivalents allocate prepaid credits at the Basic monthly rate: $29.90 for 149 credits, or approximately $0.2007 per credit. They are not separate checkout prices. See pricing for plans and packs. New accounts start with 0 credits. Each new attempt is charged again, including a completed take you dislike; a failed generation returns its generation credits. That is different from a refund of a subscription payment. See the refund policy.

The baseline above uses text-only generation. Kling 3.0 also accepts a single first frame on SeaDance, with no separate Reference mode. Video output is 16:9, and sound stays enabled in the live workflow. Its known settings make it a useful existing comparison when the same creative task can be represented with those controls.

How to make the choice without inventing a ranking

Kling 4.0 suits a deliberate test when your brief centers on the motion or reference handling highlighted by Kuaishou. Check the live quote in the generator, save the chosen options, and compare the result with your existing baseline. A newer label alone is not evidence that a particular face, line or ending will improve.

Choose the existing baseline when its documented image input and output settings already fit the assignment and you want a predictable budget. For a fair comparison, keep the same action, intended framing and sound instructions. If the available controls differ, write down the difference instead of describing the experiment as perfectly matched.

Budget for the actual number of attempts, not just the eventual selected clip. A completed take you reject remains charged. If the quote makes repeated experimentation unsuitable, reduce the creative scope before trying again. A small test of the difficult moment is often more informative than another entire scene with several unresolved requirements.

Prompt a camera move with a destination

Original example: “A courier in an olive jacket walks along a quiet covered arcade carrying a plain paper parcel. The camera tracks beside the courier. At the closed bookshop, the courier stops, lifts the parcel toward the door slot, and pauses. Soft footsteps and distant rain. End with the parcel still visible beside the slot.”

The action and camera path are separate, and the endpoint names a visible object. If the parcel disappears, simplify the hand movement. If the camera passes the doorway, describe the doorway as the final composition. Avoid adding an orbit, a sudden aerial angle and a dramatic close-up to the same short action unless those transitions are essential.

For a speaking scene, name the speaker and put the line in quotation marks. Describe everyone else as listening while the line is delivered. A prompt can request a quiet background or a particular speaking language, but it cannot guarantee perfect pronunciation or exact lip synchronization. Review the spoken words before approving the visual performance.

Treat references as evidence with a purpose

According to Kuaishou’s Kling 4.0 user guide, reference assets should have explicit roles. For image use, say which image defines appearance and which defines the setting. This is a prompting principle, not permission to use every input type in the manufacturer’s guide; SeaDance does not support uploading an audio file.

Use clean, compatible stills and preserve their filenames with your prompt. A character image should agree with the scene’s outfit, while a setting image should not silently redefine the person. If the output imports an unwanted background, replace the confusing reference rather than surrounding it with an expanding list of prohibitions.

Frequently asked questions

Sources

Official background checked November 5, 2026. SeaDance settings and billing in this article follow its current product configuration, rather than the full range of manufacturer features.

• Kuaishou: official model announcement
• Kuaishou: launch overview
• Kuaishou: user guide

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