LinkedIn webinar teaser, 15 seconds: Seedance 2.5 vs Wan 3.0 cost

A 15-second teaser for a LinkedIn webinar costs about $4.03 on seedance-2.5 at 480p and $1.88 on wan-3.0 at 720p. Wan 3.0 is the cheaper way to get a watchable 15 seconds; Seedance 2.5 is the pick when the teaser leans on many reference images or a reference video.

Both ids take 15 seconds in one job. Seedance 2.5 accepts 4 to 30 seconds and Wan 3.0 accepts 2 to 30 (video router docs).

The price side by side

Sume bills provider list times 1.25. Wan 3.0 is priced per second by resolution. Seedance 2.5 is priced per video token, which works out to roughly $0.269 per second at 480p 16:9 on Sume (864x496 px at 24 fps, $0.0214 per 1,000 video tokens list, times 1.25): a 4-second clip is $1.08, a 15-second one $4.03 and a 30-second one $8.06.

What a teaser needs

A webinar teaser is usually a title, a speaker photo and a hook line. That is an image-to-video job: send the speaker photo as a first frame and keep the prompt about motion. Both models accept first and last frames and reference images, video and audio (video generation docs).

Where Seedance 2.5 earns the extra price is control. ByteDance describes it as better at understanding reference videos, including their framing and cinematic language, and says a single generation can run up to 30 seconds (read 2026-10-07, Seed). If your brand has a house motion style on file as a short video, a reference video is how you pass it in.

A simple rule for the choice

Use Wan 3.0 at 720p when you want a clean talking-point teaser from one photo and a sentence of motion. Use Seedance 2.5 when you have a reference clip, several brand images, or a music bed you want the cut to follow.

Do not put speech you need to be exact into either model. Add the title and the date as an overlay or caption after generation, because generated on-screen text is the first thing to check on every take.

Budget for a campaign

Three teaser variants on Wan 3.0 at 720p is $5.64. The same three on Seedance 2.5 at 480p is about $12.09. Run the cheap tier first, keep the winner, and spend the higher tier only on the one you will promote.

Practical notes

One more point on format: LinkedIn plays video in a feed, mostly muted and often square or vertical. Ask for the aspect ratio in the request, check it against supported_aspect_ratios from GET /v1/videos/models for the id you chose, and add burned-in captions in your editor.

If you only run one test, run it on Wan 3.0 at 720p for $1.88. It gives you a usable result and a baseline for deciding whether Seedance 2.5's price difference is worth paying on the next round.