Seedance V2.0 vs Veo 3.1

Which should you use?

Pick Veo 3.1 when the shot has to finish at 4K or carry synced dialogue; pick Seedance V2.0 when you need a clip longer than eight seconds, or when the gap between 15 and 25 credits decides how many takes you can afford.

Both return audio with the picture, so the usual first question — do I have to score this separately — is settled either way. What separates them is the delivery ceiling, the clip length, and what a take costs.

Veo 3.1 offers 720p, 1080p and 4K, at a fixed 4, 6 or 8 seconds, from 25 credits. Seedance V2.0 covers 480p, 720p and 1080p, takes any duration from 4 to 15 seconds, and starts at 15. So the two constraints point in opposite directions: Veo is the only one that reaches 4K, and Seedance is the only one that gets past eight seconds.

Beyond the specs, reviewers converge on the same split. Veo 3.1 is repeatedly credited with the stronger prompt adherence and with physically plausible motion — objects falling at the right acceleration, cloth responding to wind, an object picked up without clipping through the hand. Seedance V2.0 sits at or near the top of the with-audio arena boards and is singled out for its reference conditioning: give it a clip, a motion style or a template to follow and its temporal consistency is excellent. The same reviews note the flip side — with no reference input, fine detail like text, jewellery or patterned fabric can flicker past about the five-second mark.

The practical reading: Veo 3.1 for the finished shot, Seedance V2.0 for the twenty that come before it, and for anything driven by a reference you already have. Neither of those is a statement about which looks better in the abstract — they are different jobs.

Checked against both models on 2026-08-09.