Kling 4.0 hands-on tests and comparisons

A user's Kling 4.0 fight clip impressed most for a mid-punch camera push from wide shot to tight close-up, keeping motion intact and both fighters' faces and uniforms consistent under motion blur.

Kuaishou put Yu Yue in charge of Kling AI and detailed Kling 4.0's October launch: 4K/1080p 10-bit HDR, up to 10 images, 5 clips and 7 subjects per task, and clips up to 30 seconds.

The author posted a side-by-side Seedance 2.5 and Kling 4.0 comparison video asking viewers which is better, without stating a conclusion.

A creator with early Kling 4.0 access made a decades-spanning dance video to an original song, calling the model nearly idiot-proof.

An early-access user generated a 20-second eagle's-eye history of progress video in two minutes using a single YAML prompt covering visuals, text, music and narration.

A user tried Kling 4.0 early access with a high-contrast black-and-white reference image and Omni Reference, generating a 20-second video with music in about a minute on the first attempt, praising the aesthetics.

A beta tester reports Kling 4.0 Flash charges only 120 credits for a 20-second video with a reference image, calling it cheap and planning more tests.

A user tests Kling 4.0 on a school hallway confrontation, finding facial expressions, micro-reactions, and lip sync surprisingly natural, with character consistency and clothing details holding up across the clip.

An AI visuals roundup says Kuaishou's Kling team shared footage of the full 4.0 model before its October launch, emphasizing realism and narrative scenes, after Flash rolled out to Ultra yearly subscribers.

Testing Flash on a one-take booth performance, the author found clean details, smooth movement and lip sync that stayed accurate even as delivery sped up.

The same prompt was run for 15 seconds at 720p through Kling 4.0 Flash and Seedance 2.0, with both clips posted for viewers to judge.

A full Kling 4.0 prompt for a 20-second sushi chef film that locks identity, hair, hands and outfit to a reference image and specifies actions and camera moves by timecode.