Seedance 1.5 Pro Settings for TikTok Viral Video

As of February 14, 2026, our stable default lane remains doubao-seedance-1-5-pro-251215 for production consistency.

This guide explains how to configure Seedance 1.5 Pro for faster TikTok iteration while keeping export quality high.

Recommended defaults

• Model: doubao-seedance-1-5-pro-251215
• Resolution: 720p test, 1080p publish
• Duration: 8s test, 10s final
• Aspect ratio: 9:16
• First pass strategy: Pattern Interrupt

Use these in /ai-video-generator for day-to-day generation.

Why 8s first, 10s later

• 8s: cheaper and faster for hook experiments
• 10s: better room for proof + CTA

This two-step loop usually improves output-per-credit.

Prompt structure for Seedance 1.5

Create a TikTok viral video opening for [topic].
Strong visual interrupt in first 2 seconds,
readable captions, one social-proof cue,
and one CTA before ending.

Change only one variable each run:

1. Hook strategy
2. Creative lane
3. Duration

About Seedance 2.0

Current product messaging includes Seedance 2.0 roadmap notes, but 1.5 Pro remains the stable default for now.

For rollout context and timeline notes, read: /blog/seedance-2-0-tiktok-viral-video-playbook.

Quick QA checklist

• Captions readable on mobile brightness 50%
• First frame communicates category
• CTA appears before final second
• Export naming includes date + angle + variant

That is enough to run disciplined weekly testing.