Is Seedance 2.0 Pro's 4K real 4K?

Yes. The file is 3840 by 2160, and it carries about 15 times the fine detail of its own 1080p render stretched to that size, by our measure.

Should I render at 4K?

Only if the delivery is 4K or you plan to crop, stabilise or grade hard. For social, web and phone, 1080p shows the same picture, renders faster and costs less.

Why will my Seedance file not play in my editor?

Seedance 2.5 at 1080p and Seedance 2.0 Pro at 4K arrive as HEVC with 10-bit colour. Some browsers and editors do not open HEVC. Use a tool that does, or convert the file to H.264.

Is Kling v3's 4K real too?

Yes. It is 3840 by 2160 with about ten times the fine detail of its stretched 1080p render, and it is H.264, so it opens almost anywhere.

Blog / Comparison

Seedance 2.5 at 1080p or Seedance 2.0 Pro at 4K: what the files contain

Seedance 2.0 Pro's 4K and Kling v3's 4K are real 4K pictures. The extra detail is real too, and it is small.

7 min read
Updated September 30, 2026

What you make, in order. Tap one to jump to its step.

Seedance 2.5 tops out at 1080p. Seedance 2.0 Pro and Kling v3 sell a 4K tier. We wanted to know whether that 4K is a real 4K picture or a 1080p one stretched to fit, so we rendered the same prompt at both tiers and measured the files instead of eyeballing them.

What we rendered

One prompt full of fine texture, 16:9, 5 seconds, on the same morning from the same account, one render per tier: Seedance 2.5 at 1080p, Seedance 2.0 Pro at 1080p and at 4K, and Kling v3 at 1080p and at 4K. Seedance kept its default sound; Kling ran without sound on both tiers so the two matched.

The prompt, exactly as sent

A slow sideways camera move along the bow of an old wooden fishing boat pulled up on a pebble beach at sunrise. Peeling blue and white paint over weathered wood grain, rusted iron bolts, a coil of frayed hemp rope, a heap of green fishing net with small orange floats, wet pebbles and thin sea foam in the foreground, fine sea spray in the low golden light. Sharp, detailed, photorealistic. No people, no text, no logos.

Is the 4K picture real?

Yes, on both models. The pixel count is the easy part: both 4K files are 3840 by 2160. The harder question is whether those pixels carry detail a 1080p frame could not. We measured it on 8 frames of each clip: squeeze the frame to 1920 by 1080, stretch it back, and see how much of the picture was lost. A frame that is only a stretched 1080p picture loses almost nothing.

4K render	Detail above 1080p	Its 1080p render, stretched to 4K	Round trip, PSNR
Seedance 2.0 Pro, 4K	0.050%	0.0033%	44.5 dB, against 56.5 dB stretched
Kling v3, 4K	0.107%	0.011%	44.6 dB, against 54.5 dB stretched

Detail above 1080p is the share of the frame's brightness variation that does not survive a squeeze to 1080p and back. The stretched column is the same model's own 1080p render enlarged with a Lanczos filter, the control that shows the measure can fail. Lower PSNR means more was lost in the round trip.

Both 4K renders carry many times the fine detail of a stretched frame. Both numbers are also small in absolute terms: most of any natural picture lives at coarse scales. The drag slider shows what that looks like.

Peeling white paint and rust streaks on the boat's hull, a 320 by 180 pixel patch of Seedance 2.0 Pro's 4K frame shown three times larger, as delivered. — **Seedance 2.0 Pro, 4K.** A patch of hull at three times size, so each source pixel is visible. The fine cracks and grain are what 4K adds.

The same patch after the whole frame was squeezed to 1080p and stretched back: the cracks and grain are softer. — **Seedance 2.0 Pro, 4K.** A patch of hull at three times size, so each source pixel is visible. The fine cracks and grain are what 4K adds.

Frayed rope fibres in warm light, a 320 by 180 pixel patch of Kling v3's 4K frame shown three times larger, as delivered. — **Kling v3, 4K.** Rope fibres at three times size. The difference is in the edges of single fibres.

The same rope after the frame was squeezed to 1080p and stretched back: the fibre edges are softer. — **Kling v3, 4K.** Rope fibres at three times size. The difference is in the edges of single fibres.

Watch for this:Real detail, small gain. To our eyes, at normal viewing size on a laptop or phone, a 4K frame and its 1080p squeeze look the same. The 4K detail matters when you crop into the frame, stabilise, grade hard, or deliver to a 4K screen.

What the files contain

Measured with ffprobe on the files as delivered.

Render	Frame	Codec and colour	Video bitrate	Submit to finished
Seedance 2.5, 1080p	1920 by 1080, 24 fps	HEVC, 10-bit	16.8 Mb/s	170 s
Seedance 2.0 Pro, 1080p	1920 by 1080, 24 fps	H.264, 8-bit	9.0 Mb/s	184 s
Seedance 2.0 Pro, 4K	3840 by 2160, 24 fps	HEVC, 10-bit	26.2 Mb/s	421 s
Kling v3, 1080p	1920 by 1080, 24 fps	H.264, 8-bit	19.5 Mb/s	71 s
Kling v3, 4K	3840 by 2160, 24 fps	H.264, 8-bit	29.4 Mb/s	88 s

One render each. All started together except Seedance 2.0 Pro at 4K, which ran about forty minutes later. Render times vary with provider queues.

The codec changes with the tier. Seedance 2.5 at 1080p and Seedance 2.0 Pro at 4K arrive as HEVC (H.265) with 10-bit colour. Seedance 2.0 Pro at 1080p and both Kling files are H.264, 8-bit. HEVC is not supported by every browser, editor or upload form, so check yours before you plan a delivery around it.
Seedance 2.5's 1080p file is the richer 1080p. It carries nearly twice the bitrate of Seedance 2.0 Pro's 1080p file, in 10-bit colour, which holds up better under a strong grade.
4K takes longer on Seedance. Seedance 2.0 Pro at 4K took 421 seconds, two and a half times Seedance 2.5 at 1080p. Kling's 4K came back in 88 seconds, 17 seconds slower than its 1080p.

Watch them

These play re-encoded to 960 pixels wide so they load on a phone, which hides the 4K detail; the zooms above are from the files as delivered. Nothing loads until you press play.

An old wooden fishing boat with peeling blue and white paint on a pebble beach at sunrise, with rope, a green net and orange floats, rendered by Seedance 2.5 at 1080p. — **Seedance 2.5, 1080p.** Backlit, with a flare from the low sun.

An old wooden fishing boat with peeling blue and white paint on a pebble beach at sunrise, with rope, a green net and orange floats, rendered by Kling v3 at 4K. — **Kling v3, 4K.** Close on the rope and net.

Which to pick

Your job	Pick	Why
Edit or extend a clip you already have	Seedance 2.5 at 1080p	The catalog lists edit and extend for Seedance 2.5 and not for Seedance 2.0 Pro.
A 4K master, or room to crop and reframe	Seedance 2.0 Pro or Kling v3 at 4K	Both return real 3840 by 2160 detail, measured above.
4K without HEVC	Kling v3 at 4K	Its 4K file is H.264, and it came back in under a minute and a half.
Social, web or phone delivery	any 1080p tier	At phone size we could not see the 4K detail, and 1080p is faster and cheaper.

Seedance 2.5Pro and up
Per 5s clip
480p 26 credits · 720p 56 credits · 1080p 137 credits
1080p renders at 16:9 and 9:16
Seedance 2.0 ProPro and up
Per 5s clip
720p 43 credits · 1080p 105 credits · 4K 218 credits
Kling v3Pro and up
Per 5s clip (audio on by default)
720p 35 credits · 1080p 47 credits · 4K 117 credits

Read live from the catalog when this page loads. Every price is shown before you generate. See every rate.

Each tier's rate is read live from the price list for a 5 second clip; a longer clip costs proportionally more. The 4K tiers are the premium rows.

Method and limits

One render per tier. The resolution and codec come from the tier, so they will repeat; the detail numbers depend on the picture and will move from render to render.
Different renders of one prompt are different pictures, so we never compare detail across two renders. Each 4K clip is compared with itself squeezed to 1080p, and with its own model's 1080p render stretched to 4K as the control.
The detail measure is the variance of the frame minus its 1080p round trip (area squeeze, bicubic stretch) over the variance of the frame, on 8 frames, median reported, on 16-bit greyscale decodes. It shows the detail is there. It cannot show whether the provider drew it at 4K or added it with a detail enhancing upscaler.
When we started, every Seedance 2.0 Pro request at the 4K tier was refused before rendering, with nothing charged. The cause was on our side, in how the tier was passed to the provider, and it was fixed the same morning. The 4K render here came after the fix.

Questions and answers

Is Seedance 2.0 Pro's 4K real 4K?: Yes. The file is 3840 by 2160, and it carries about 15 times the fine detail of its own 1080p render stretched to that size, by our measure.
Should I render at 4K?: Only if the delivery is 4K or you plan to crop, stabilise or grade hard. For social, web and phone, 1080p shows the same picture, renders faster and costs less.
Why will my Seedance file not play in my editor?: Seedance 2.5 at 1080p and Seedance 2.0 Pro at 4K arrive as HEVC with 10-bit colour. Some browsers and editors do not open HEVC. Use a tool that does, or convert the file to H.264.
Is Kling v3's 4K real too?: Yes. It is 3840 by 2160 with about ten times the fine detail of its stretched 1080p render, and it is H.264, so it opens almost anywhere.

Render your keeper at the tier you need

Open Seedance 2.0 Pro

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September 30, 2026 · 9 min read

Comparison

One prompt, six video models, nine measured checks

One prompt with nine checkable details, sent to six AI video models twice each, and every clip measured with a detector, text reading and camera tracking.

September 30, 2026 · 12 min read

Model

Seedance 2.5 at 1080p, with reference, edit and extend

Seedance 2.5 renders 1080p in 16:9 and 9:16, takes up to ten reference videos and ten audio tracks, and can reference, edit or extend a clip of yours.

September 30, 2026 · 5 min read