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Higgsfield's two Kling 4.0 pages give the model two different resolution ceilings

One page promises 4K with 10-bit HDR, the other caps the same model at 1080p and repeats that cap in its FAQ.

By Daniel Ochoa · 25 October 2026

Higgsfield is selling the same model on two pages with two different resolution ceilings. Its Kling 4.0 landing page says the full model will "export in 4K 10-bit HDR with stereo audio" and lists 4K alongside thirty seconds, keyframes and references as what separates the full tier from the Flash tier. Its blog page for the same model, on the same domain, puts the model at 3 to 30 seconds at up to 1080p, and the FAQ at the bottom of that page answers the length question with "From 3 to 30 seconds in a single generation, at 720p or 1080p."

That is not a rounding difference. 4K with 10-bit HDR and 1080p with 8-bit output are different deliverables, different render costs and, on most platforms, different credit charges. It is also the single spec that the full Kling 4.0 tier is being differentiated on, since the Flash variant already covers quick drafts at 720p.

The 10-bit HDR mode has been listed as not yet shipped since the model launched, which makes the 1080p figure the more cautious of the two numbers and the 4K HDR line on the landing page the one a buyer would have to verify before planning a delivery around it.

What the 30-second claim actually changes

The length number is the easier one to pin down, and both Higgsfield pages agree on it. Kling 4.0 generates 3 to 30 seconds in a single pass, against the 3 to 15 second range on Kling 3.0, and the platform's comparison table makes clear that the jump is about avoiding stitching rather than about raw duration. The control surface moved with it: Kling 3.0 accepted a first and last frame, while 4.0 accepts up to 10 keyframes placed across the clip, plus up to 15 references in a single generation, counted as a combined limit of 10 images, 5 videos and 7 subjects.

Video editing is listed separately and carries its own arithmetic. Higgsfield's settings table allows up to 5 input clips, one of them designated as the main clip, each between 3 and 30 seconds, with a combined length that still cannot exceed 30 seconds.

In our benchmark, the two Kling generations score like this across the full category set:

Keyframes are a claim about continuity, not about pixels

Ten keyframes across a 30-second take is a promise that the model will hit specified states at specified points, which is a harder thing to measure than resolution and a more useful thing to know. Continuity across a cut is where longer single-pass generations usually fail, and it is what the keyframe and reference controls exist to fix.

None of the length or control numbers are in dispute between Higgsfield's pages. The resolution is, and it is the number that decides what the full tier is for. Until the two pages agree, the defensible assumption for anyone scheduling a deliverable is the lower one: 1080p, 8-bit, with 4K and HDR treated as unshipped until a render comes back carrying them.

Sources: Higgsfield, Higgsfield Blog.

Daniel Ochoa: Covers model launches, shutdowns and pricing changes as they happen. Reads deprecation notices for a living so you do not have to.