Seedance 1.5 Pro

ByteDance / Seedance 1.5 Pro — Text to Video (seedance-1.5-pro)

Seedance 1.5 Pro is ByteDance\

Highlights

• •Enhanced Motion Quality – Generates smoother, more natural movements with improved physics simulation and realistic motion dynamics.
• •Superior Temporal Consistency – Maintains visual coherence across frames, eliminating flickering and ensuring stable subject appearance throughout the video.
• •Start/End Frame Control – Advanced feature allowing precise control over the beginning and ending frames of your video for seamless loops or specific compositions.
• •Flexible Duration – Generate videos from 2 to 12 seconds with fine-grained control over the exact length.
• •Audio Generation – Optional audio synthesis to complement your video content, creating a complete multimedia experience.
• •Multiple Resolutions – Support for both 480P and 720P output to balance quality and processing time.

Parameters

• •prompt* – Text description of the video to generate
• •negative_prompt – Things to avoid in the video
• •aspect_ratio – Video aspect ratio
  • • 16:9 (Landscape)
  • • 9:16 (Portrait)
  • • 1:1 (Square)
  • • 4:3
  • • 3:4
• •duration – Video duration in seconds (4-12)
• •resolution – Video resolution
  • • 480P
  • • 720P
• •generate_audio – Generate audio for the video (2x cost)
• •seed – Random seed for reproducibility

Pricing

How to Use

1. 1.Write a detailed prompt describing the scene, action, and visual style you want.
2. 2.Select the aspect ratio that best fits your use case (16:9 for landscape, 9:16 for portrait/mobile, 1:1 for social media).
3. 3.Choose the video duration between 2-12 seconds based on your content needs.
4. 4.Select resolution (720P recommended for quality, 480P for faster generation).
5. 5.Optionally enable audio generation if you want synchronized sound.
6. 6.Click generate and wait for your video to be created.

Pro Tips

• •For best motion quality, describe the movement explicitly: "slowly walking", "gently swaying", "rapidly spinning".
• •Include camera movement in your prompt: "camera pans left", "slow zoom in", "tracking shot following subject".
• •Use negative prompts to avoid common issues: "static, frozen, glitchy, distorted, blurry, low quality".
• •For cinematic results, add style keywords: "cinematic lighting", "film grain", "anamorphic lens", "shallow depth of field".
• •Longer durations (8-12s) work best for scenes with gradual changes; shorter durations (2-4s) for dynamic action.
• •Enable audio generation for videos with natural sounds (water, wind, footsteps) to enhance immersion.

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