Kling 4.0 hands-on tests and comparisons

A Turkish user runs the same older Madara battle-scene prompt through Kling 4.0 and Wan 3 Prime, showing both outputs and sharing the full prompt.

A user joked that AI video looks perfect for 8 seconds before the character turns into someone else at 30 seconds, and thinks Kling 4.0's single-pass generation might fix it.

A side-by-side test pits Kling 4.0 against Seedance 2.5 with the same prompt and the same 15-second length, asking viewers which is better and posting the full prompt in a reply.

Kling 4.0 is now live on Higgsfield, with listed upgrades including 30-second scenes in one pass, audio generated with visuals, key-moment control and cross-generation character consistency.

The poster says most people only notice the 30-second length, but the real draw is keeping character, product and audio together in one generation, with 4K still promised.

The user says too many AI videos look great then fall apart midway, and Kling 4.0's one-pass 30-second generation is worth testing.

A user says setting the start, middle and end of a scene in Kling 4.0 shifts AI video from hoping to directing, and that the Higgsfield version delivers it best.

A user who tried most AI video models this year says faces drift after the first few seconds, and Kling 4.0 is the first to address that instead of just making clips longer.

A user notes Higgsfield's Kling 4.0 generates 30-second scenes with characters, objects and audio in one pass, controls start/middle/end frames, and native 4K is coming.

Higgsfield says Kling 4.0 is live with Omni Reference for characters, objects and audio, 30-second single-pass scenes, start/middle/end frame control, and native 4K coming.

Higgsfield adds Kling 4.0, listing 30-second single generations, characters/objects/audio in one pass, keyframe control and cross-generation character consistency.

A short user reaction noting that Kling 4.0 can produce 30 seconds in a single pass, remarking on how fast AI video is advancing.