Seedream 5.5 API for Realistic Images and Transparent PNG Generation

Key Features of Seedream 5.5 API

• Photographic Detail: Create portraits with natural expressions and proportions, tactile product materials, and lighting that gives subjects a convincing place in the scene.
• Native Transparent Assets: Generate assets with an alpha channel, including partially transparent details, for use in layouts and compositing.
• Clear Small Text and Multilingual Typography: Render headings, product labels, and dense supporting copy with accurate character shapes and readable layouts, including Chinese and English text.
• Expressive Lettering: Make text the main visual by describing its material, texture, shape, and color, from yarn lettering to sculptural display type.
• Prompt-Based Art Direction: Specify the subject, setting, composition, lighting, and style to explore different interpretations of a creative brief.
• Flexible Output Settings: Select a resolution up to 2K and supported square, portrait, landscape, or wide proportions, with automatic, transparent, or opaque backgrounds.

How to Use Seedream 5.5 API on Best Image AI

• Input: Describe the intended use, subject, composition, materials, and lighting. For a poster or information graphic, specify the positions and visual hierarchy of the title, main image, and supporting information.
• Text and Layout: Put the exact wording in quotation marks and specify line breaks, alignment, and relative text sizes. For charts and diagrams, supply the data and explain how labels relate to the graphic elements.
• Output Settings: Choose a supported aspect ratio and resolution for each request. For standalone assets, select a transparent background and describe which areas should remain visible or partially transparent; a glass subject alone does not imply a transparent background.
• Output: Each completed task returns one PNG image through Best Image AI's image-task workflow, including when transparency is selected.
• Iteration: Revise the prompt to explore another direction. To modify an existing result using image input, use Seedream 5.5 Edit.
• Billing: Generation is charged per output image according to the selected resolution.

Best Use Cases for Seedream 5.5 API Integration

• Product and Lifestyle Concepts: Explore studio settings, surface materials, and photographic compositions before planning a shoot.
• Transparent Design Elements: Create stickers, decorative lettering, and isolated illustrations for placement over other visuals.
• Posters and Information Graphics: Develop recruitment posters, livestream announcements, product labels, and presentation graphics with a clear hierarchy of headings and small print.
• Campaign Exploration: Turn a brief into alternative visual directions for banners, social posts, and promotional artwork, including material-based lettering as the central visual.
• Film and Storyboard Concepts: Explore shot compositions, character expressions, and scene lighting in still images before production.
• Creative Applications: Add prompt-based PNG generation to design tools and content-production workflows.

Note Use prompts that comply with ByteDance's safety guidelines. If a request fails, check the inputs and returned error before retrying.

Seedream 5.5 vs Competitors: Comparative Analysis

• Seedream 5.5 vs. Seedream 5.0 Pro

  Seedream 5.5 improves realism and text rendering over Seedream 5.0 Pro and adds native RGBA generation. It supports workflows that combine photographic visuals, text-rich layouts, and reusable transparent assets.

• Seedream 5.5 vs. ChatGPT Images 2.5 Flare

  On Best Image AI, ChatGPT Images 2.5 Flare offers separate quality settings alongside resolution controls. Seedream 5.5 provides background selection with PNG output. Choose based on the controls your application needs and compare results using representative prompts.