> ## Documentation Index
> Fetch the complete documentation index at: https://tikway.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 图片生成

> Seedream 使用 `/v1/images/generations`。`model` 和 `prompt` 必填，`response_format` 可选。

| 模型 | 尺寸 | 其他参数 |
| --- | --- | --- |
| `volcengine/doubao-seedream-5.0-pro` | 2K、3K 或合规 `WIDTHxHEIGHT` | `output_format`、`background`、`response_format`、`watermark`、`optimize_prompt_options` |
| `volcengine/doubao-seedream-4.5` | 2K、4K 或合规 `WIDTHxHEIGHT` | `response_format`、`watermark`、`optimize_prompt_options`；透明背景能力以账户上游为准 |

透明背景必须同时使用 `output_format=png`。当前规范没有暴露组图控制和参考图字段。



## API Specification

The full API specification for this endpoint is available in the [documentation index](https://tikway.mintlify.site/llms.txt).