Kling 4.0 hands-on tests and comparisons

A user tested Kling 4.0 Flash on a kids' rabbit-and-carrot animation plus anime, motion graphics, realistic and action styles, saying action and animation impressed most.

A Portuguese-speaking user notes Kling 4.0 generates 30-second clips directly, mocking creators still stitching fragmented AI shots in CapCut.

A user waiting on Kling 4.0 says Seedance looks great but is too expensive for regular use, and asks for an ETA.

Topview uses Kling 4.0 on its Canvas to swap an AI video into a new character, outfit and setting while keeping the delivery in sync, with a side-by-side comparison.

Third-party API platform Runware says Kling 4.0 will arrive in October on its existing unified endpoint for Kling models.

A roundup of official Kling 4.0 details: Flash is live, the full model ships in October, and it supports 4K, HDR, stereo audio, tighter lip sync, 15 references, 10 keyframes and 30-second clips.

A user generates a 3D animated creature-waking-up clip with Kling 4.0 Flash and shares the full multi-shot prompt.

A user pitted Kling 4.0 Flash against Seedance 2.5 in an AI breakdance battle, awarding the floor-sparks effect to one side.

The author had Claude split the MV into blocks, write prompts, run Kling 4.0 Omni Reference, check every cut and edit back to the original timing, finding Claude's cut timing surprisingly accurate.

A user asks whether the only way to try Kling 4.0 Flash is buying the roughly 11,000-yuan annual membership, or if other access channels exist.

A user tests Kling 4.0 Flash for text-to-video, says it works better there, and shares the prompt.

The author says Claude designed the lighting layers and scene geometry before Kling 4.0 handled camera dynamics and atmosphere, producing a fantasy cinematic shot in under 12 minutes for under $17.