Seedance 2.5 is token-priced: 30 s is $8.06, $17.33 or $42.65

Seedance 2.5 is priced per 1,000 video tokens in the catalog, so a 30 s clip is not seconds times a published rate: it is $8.06 at 480p, $17.334 at 720p and $42.6465 at 1080p for 9:16. The same 30 s clip costs 2.15x more going from 480p to 720p and 2.46x more going from 720p to 1080p.

Totals from the price tool

The pricing code for Seedance estimates video tokens from resolution, aspect ratio and length, then multiplies by the token rate. The catalog gives only the rate, so a client that wants a total must use an estimate from Sume or a measured per-second figure.

At 9:16 and 720p the tool returned $2.3112 for 4 s and $17.334 for 30 s, which is the same $0.5778 per second, so a flat per-second figure was usable at that resolution and ratio. 16:9 at 720p gave the same 30 s total.

A quote helper with measured rates

Use this only as a pre-check and replace the constants whenever you re-run the price tool. The poll's usage.cost stays the source of truth.

from decimal import Decimal

# billable USD per second, 9:16, measured 2026-10-09
PER_SECOND = {
    "480p": Decimal("0.268677"),
    "720p": Decimal("0.5778"),
    "1080p": Decimal("1.42155"),
}

def quote(res, seconds):
    if not 4 <= seconds <= 30:
        raise ValueError("seedance-2.5 takes 4 to 30 s")
    return PER_SECOND[res] * seconds

print(quote("720p", 30))  # 17.3340

Gotchas

The measured per-second figures hold for the ratios and lengths tested; do not assume they hold for 1:1 or 21:9 without running the tool. The catalog example in the docs shows a 4-decimal token rate string, and its value can change, which is why the constants above carry a date.

Seedance 2.5 runs 4 to 30 s at 480p, 720p and 1080p. For a cheaper 30 s clip, Wan 3.0 is $3.75 at 720p.