ByteDance

Seedance 1.5 Pro

ByteDanceSpecialized
Vision

About this model

ByteDance's next-generation audio-visual generation model with a 4.5B parameter Dual-Branch Diffusion Transformer architecture. Seedance 1.5 Pro generates video and audio simultaneously in a single unified pass — eliminating the timing...

Performance Tier

Specialized

Seedance 1.5 Pro is a specialized model from ByteDance : built for a specific domain.

Domain-specific model. Optimized for a particular task such as code generation, image creation, or web search.

Pricing

This model is included in Elosia plans
Premium

Highest cost level. A long conversation can quickly consume your monthly cap.

Capabilities

Context Length
Max Output Tokens
Inputtext, image
Outputvideo
Release DateMarch 23, 2026

Recommended Use Cases

Creative Writing

Strengths

  • Renders up to 1080p, resolution selectable per generation
  • Flexible 4 to 12 second durations across 480p, 720p and 1080p
  • Unified Dual-Branch Diffusion Transformer generates video and audio in a single pass
  • Audio can be turned off at generation time, for a silent render

Limitations

  • No 4K render path, resolution tops out at 1080p
  • Maximum duration of 12 seconds per generation

Frequently asked questions

Resources

This model may use your data for training

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