Seedream 5.5 Uncensored by ByteDance

Overview

Seedream 5.5 Uncensored is an image generation and instruction-based editing model from ByteDance’s Seed team. It can generate a new image from your description or apply targeted changes to a provided image.

The model is tuned for multi-turn editing. It aims to keep unedited regions pixel-stable across many successive edits. It also supports native RGBA output, which makes real transparent-background assets without background removal.

What you can build

• Product cutouts, stickers, and icons with real transparency for design tools
• Multi-round art direction workflows where you refine one image step by step
• Marketing creatives with small, legible text and consistent layout
• Character and object assets you can place on new backgrounds without matting
• Before/after edits like outfit swaps, prop changes, relighting, and scene changes

Inputs

• A required written prompt that describes what to generate or how to change the image
• An optional single input image to edit; if you don’t provide one, it generates from the prompt
• A required output resolution choice (1K, 1.5K, or 2K)
• An optional aspect ratio choice (or auto), used to shape the final frame
• An optional background mode: automatic, fully opaque, or transparent
• An optional output file format choice: JPEG or PNG
• An optional watermark toggle that adds an “AI generated” mark in the corner

Outputs

The model returns 1 generated image file.

• If you choose JPEG, you get an opaque image.
• If you choose PNG, you can get either an opaque PNG or an RGBA PNG with an alpha channel.
• If you request a transparent background, the output includes real transparency, including semi-transparent edges.
• The image matches your selected resolution tier and aspect ratio choice.

Limitations

• Output size is constrained by a pixel-area budget. Extreme aspect ratios may be rejected or forced into a supported range.
• Transparent-background output requires PNG. If you request transparency with JPEG output, it won’t work.
• Multi-turn edits can still drift over time. Fine details may soften after many revisions.
• Small text is improved, but it can still misspell words or alter characters. Proofread any text.
• Hair, fur, smoke, lace, and glass edges can show halos in transparent PNG output. Inspect edges before production use.
• Low-quality inputs increase failure risk. Heavy JPEG artifacts, motion blur, screenshots with UI clutter, and scanned images can cause unwanted changes.

Safety & compliance

• “Uncensored” does not mean unmoderated. Provider-side and platform-side rules can still block some requests.
• Content involving minors, or anyone who could be under 18, is never allowed.
• Do not create sexual content involving minors, exploitative content, or non-consensual content.
• Don’t upload images you don’t have rights to use. You’re responsible for consent and permissions.
• Avoid requests that impersonate real people or create deceptive deepfakes, especially for sexual content or harassment.