Overview
Unlimited generation by plan
Which plan runs each resolution unlimited, at the model’s base settings. Gems means that setting always costs Gems on that plan.
Extra reference images on Seedream 5.5 and Seedream 5.0 Pro raise a run’s price, which may move it to a higher plan or to Gems.
What it supports on Mage
Best for
- Detailed scenes that keep every object you list
- Posters, signs, packaging, and menus with readable text
- Edits that change one thing and leave the rest of the image alone
- Fast drafts on Seedream 5.0 Flash, then a final pass on Seedream 5.5
- Photoreal skin and light, dense small text, and long chains of edits on Seedream 5.5
- 4K output on Seedream 4.5
An example prompt to start from
Limitations
- Strict Filter: before a run starts, Mage checks the prompt and the first image you attach. A request it refuses fails with a notice that says why and suggests other models to try, and any Gems it cost are refunded. ByteDance’s own content rules also apply.
- Seedream 5.5, Seedream 5.0 Pro, and Seedream 5.0 Flash top out at 2K. Seedream 5.0 Lite reaches 3K and Seedream 4.5 reaches 4K, both unlimited from Pro Plus, and the Image Enhancer app upscales any output afterwards.
- Seedream has no negative prompt field. If you need to exclude something specific, use Guava, which does.
- Characters and References work on every model except Seedream 4.0. Moodboards work on Seedream 4.5.
Use via API
Seedream is available through the Mage API as theseedream architecture, with model_id selecting the model. Its fields, tokens, defaults, and price are on its API reference page.