Skip to main content
All posts
Guide

How to Generate Your First 30-Second Video with Seedance 2.5

A step-by-step guide to creating your first native 30-second, one-pass video on Seedance2Pro.

Seedance 2.5 generates a full 30 seconds in a single pass — consistent from the first frame to the last, with no stitching. This guide walks you through creating your first clip on Seedance2Pro, from picking a mode to exporting an MP4 with native audio.

Step 1: Choose your mode

Start by deciding how the shot begins:

  • Text-to-Video — describe the scene in words and let the model build it from scratch. Best when you have no source footage.
  • Image-to-Video — upload a still and animate it. Best when you already have a character, product, or frame you want to keep consistent.

Pick one on the generation page. You can switch later and reuse the same prompt.

Step 2: Write your prompt in beats

A 30-second shot has room for a small story, so write it as a sequence of beats instead of one long sentence. Each beat is a moment the camera moves through:

Beat 1 (0-8s): wide shot, a lone surfer paddles out on a glassy dawn ocean
Beat 2 (8-18s): camera pushes in as the wave builds behind her
Beat 3 (18-30s): she drops in, spray backlit by the rising sun

Beats keep motion, camera, and lighting readable across the full duration. Seedance 2.5 lands roughly 20% higher prompt adherence than Seedance 2.0, so specific verbs and camera language pay off.

Step 3: Add references (up to 50)

Seedance 2.5 accepts up to 50 multimodal references — images, video, or audio — in a single generation. Use them to lock down what words can't:

  • Images — a character's face, a product, a color palette, or an art style.
  • Video — a motion or camera move you want echoed.
  • Audio — a voice or track the model syncs to natively in the same pass.

Add only the references that matter. A handful of strong, on-topic references beats a large pile of loosely related ones.

Step 4: Generate

Set your aspect ratio (1:1, 3:4, 4:3, 16:9, 21:9, or 9:16), confirm the 30-second length, and generate. Because the model produces the whole clip in one latent pass, the result is coherent end to end and arrives in near real time — no stitching, no drift between segments.

Step 5: Fix one area with region editing

If most of the shot is right but one detail is off — a hand, a logo, a sign in the background — use region editing instead of regenerating the whole video. Select the region, describe the fix, and Seedance 2.5 re-renders only that area while everything else stays exactly as it was. This keeps the parts you already liked and saves credits.

Step 6: Export MP4 with native audio

When the clip looks right, export it as an MP4. Native audio is baked in during the same generation pass — dialogue, effects, or music stay in sync with the motion, so there's no separate track to line up afterward.

Next steps

  • Try the same prompt in both Text-to-Video and Image-to-Video to see which starting point fits your idea.
  • Reuse your best references across shots to keep a character or product consistent.
  • Check your plan — Free, Pro, or Studio — for how many credits each 30-second generation costs.