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.

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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.

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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.

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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

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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.

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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.