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Seedream 4.0 Blog

Seedream 4.0 API: Architecture, Benchmark performance & Access

Seedream 4.0 API: Architecture, Benchmark performance & Access

Seedream 4.0 — ByteDance’s newest image model — landed with a splash in the generative-AI world. It’s being hailed for professional-grade fidelity, unified

Seedream 4.0 API

Seedream 4.0 (model identifier doubao-seedream-4-0-250828) is ByteDance’s newest image-creation foundation model that unifies text→image generation and image editing in a single architecture. The model was announced in early September 2025 and is positioned for high-resolution (up to 4K) generation, multi-reference workflows, and fast inference for production use.

What changes will Seedream 4.0 bring to AI painting models?

What changes will Seedream 4.0 bring to AI painting models?

ByteDance’s Seed research team today announced the release of Seedream 4.0, the next generation of its image-creation models that the company says delivers