ByteDance Seedream 4.5
ByteDance's versatile image model with strong aesthetic quality and prompt fidelity.
Seedream 4.5 is a cloud image-generation model built by ByteDance. It generates images from a text prompt, and can take reference images to guide style or composition (image-to-image). It outputs up to 4K across 15 aspect ratios. Images can be saved as PNG, JPEG, and WebP. It runs through ByteDance, OpenRouter, Runware, and Replicate using your own API key, from about $0.04 per image.
- Released
- Dec 2025
- Pricing
- $0.04 per image
- Max resolution
- 4K
- Aspect ratios
- 1:1, 16:9, 9:16 +12 more
- Image-to-image
- Up to 14 reference images
- Output formats
- PNG, JPEG, WebP
- Text to image rank
- #35
- Image edit rank
- #27
Samples
Generated with Seedream 4.5 via Runware. The same three prompts run against every model in the catalog, first result kept, so the only thing that changes between two models’ tiles is the model.
Materials, reflections, macro detail
Skin texture, lighting, shallow depth of field
Text rendering, layout, flat colour
ByteDance
ByteDance's AI labs ship the Seedream image models and the Seedance video models, among other Doubao-branded research.
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