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Models · ByteDance

Seedream 5.0

Model family: seedream

ByteDance's proprietary text-to-image model — high-detail output up to 2K native (4K enhanced) with strong long-text rendering, delivered through CapCut and Volcano Engine rather than as downloadable weightsThe numerical values inside a trained model that encode everything it has learned. A model is, functionally, a giant list of weights — tens of billions of numbers for a mid-sized model, hundreds of billions for a frontier model. "Open-weight" means those numbers are published. "Downloading the weights" means getting the actual file you'd need to run the model yourself..

Listing Notes

Accessed through ByteDance consumer/creator products (CapCut, Jianying, Xiaoyunque) and Volcano Engine; pricing is per-generation rather than per-tokenThe basic unit of text a model reads and writes. Tokens are roughly three-quarters of a word in English — so 100 tokens is about 75 words. Models don't see letters or words directly; they see tokens. Pricing is almost always quoted per million tokens, and context windows are measured in tokens rather than words.. A "5.0 Lite" variant also exists.

Identity

Creator
ByteDance
Model family
seedream
Release date
2026-02-09
Version history
  • 4.5 · 2025-12-04T00:00:00.000Z — Prior image-generation release.
  • 5.0 · 2026-02-10T00:00:00.000Z — 2K native output (4K via enhancement); improved prompt understanding; retrieval-grounded generation.

Technical specs

Parameter count
Undisclosed; a proprietary image-generation model. Not self-hostable — accessed through ByteDance apps (CapCut/Jianying, Xiaoyunque) and Volcano Engine.
Context window
Modalities
  • Image Output
  • Text
Primary capabilities
  • Image Generation

License

License
ByteDance Proprietary Terms (CapCut / Volcano Engine)
Commercial use
  • Conditional

Output usage is governed by the terms of the ByteDance product used to generate it (CapCut/Jianying, Volcano Engine, etc.); commercial-use rights and any content/region restrictions vary by product and plan. Review the applicable product terms before commercial use.

Terms
  • Modification ✗
  • Redistribution ✗
  • Attribution ✗

Access

Openness
  • Closed Api
Access methods
  • Api First Party
  • Hosted Chat Ui
Cost tier
  • Paid Api

Sources

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