Bytedance family
# Seedream 4.5 Advanced generative AI for immersive visual storytelling. ## Overview Seedream 4.5 represents a significant leap forward in generative AI, developed by Bytedance to provide high-fidelity image and video generation capabilities. Unlike standard diffusion models, Seedream 4.5 is engineered with a deep focus on spatial understanding and world knowledge, allowing it to maintain structural integrity and thematic consistency across complex prompts. Whether you are generating a single high-resolution asset or a sequence of related visual scenes, this model excels at interpreting abstract concepts and translating them into polished, professional-grade visuals. What sets Seedream 4.5 apart is its ability to handle multi-reference inputs and sequential generation. By leveraging its enhanced spatial awareness, the model can synthesize information from multiple reference images to create cohesive variations or narrative-driven sequences. This makes it an essential tool for creative teams who need to maintain brand identity or character consistency while exploring diverse artistic directions. Its robust architecture ensures that even the most ambitious conceptual prompts are rendered with precision and depth. ## Use Cases * **Storyboarding for Ad Campaigns:** Generate consistent character variations across multiple scenes to visualize a full commercial narrative before production. * **High-Resolution Brand Assets:** Create 4K immersive visuals for digital billboards, website hero sections, and high-impact social media advertisements. * **Conceptual Art Iteration:** Rapidly prototype visual concepts for product launches by inputting reference sketches and refining them into polished, high-fidelity imagery. * **Multi-Reference Style Transfer:** Apply specific brand aesthetics or artistic styles from existing assets to new, generated imagery to ensure visual uniformity. * **Dynamic Social Media Content:** Use the sequential generation feature to produce a series of related images that tell a micro-story, perfect for carousel ads or Instagram Stories. ## Parameters Seedream 4.5 offers a suite of customizable parameters designed to give creative teams granular control over the output. From resolution settings (2K or 4K) to aspect ratio adjustments and sequential generation modes, users can tailor the model to fit specific project requirements. Please refer to the configuration panel in the Pixloop interface for the full list of adjustable settings, including image input handling, safety checker toggles, and generation limits. ## Tips for Best Results * **Leverage Multi-Reference:** When seeking character or style consistency, provide at least 3-5 reference images to help the model anchor its spatial understanding. * **Use Sequential Mode for Narratives:** Enable 'auto' in the sequential_image_generation setting when you need a series of images that follow a logical progression or theme. * **Prioritize 4K for Print:** Always select the 4K resolution option for assets intended for physical print or large-format digital displays to ensure maximum detail retention. * **Refine with Aspect Ratios:** Match your aspect ratio to your final delivery platform (e.g., 9:16 for TikTok/Reels, 16:9 for YouTube) to avoid unnecessary cropping and composition loss. * **Iterative Prompting:** Start with a high-level conceptual prompt and refine it by adding specific lighting, texture, or environmental details based on the initial output results. ## About Seedream 4.5 is a state-of-the-art generative model developed by Bytedance, integrated into the Pixloop platform via Replicate. It builds upon the lineage of previous Seedream iterations, incorporating advanced spatial reasoning and world knowledge to push the boundaries of AI-driven creative production. Designed for high-performance workflows, this model is optimized for professional marketing and advertising environments where quality and consistency are paramount.
Model input reference derived from preset schema.
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
| size | select | No | "2K" | Image resolution: 2K (2048px) or 4K (4096px). Note: 1K resolution is not supported in Seedream 4.5. |
| prompt | string | Yes | null | Text prompt for image generation |
| max_images | integer | No | 1 | Maximum number of images to generate when sequential_image_generation='auto'. Range: 1-15. Total images (input + generated) cannot exceed 15. |
| image_input | image | No | [] | Input image(s) for image-to-image generation. List of 1-14 images for single or multi-reference generation. |
| aspect_ratio | select | No | "match_input_image" | Image aspect ratio. |
| sequential_image_generation | select | No | "disabled" | Group image generation mode. 'disabled' generates a single image. 'auto' lets the model decide whether to generate multiple related images (e.g., story scenes, character variations). |