# Seedream v5.0 Flash Edit — Atlas Cloud API

> Dola-Seedream-5.0-flash image editing from ByteDance's high-speed, cost-optimized model built for instant creation. Supports single- and multi-reference workflows with up to 10 images, precision editing, and transparent-background output - built for latency-sensitive mobile assistant apps, UGC content creation, and bulk-scale content production.

This is the machine-readable API reference for **Seedream v5.0 Flash Edit** on Atlas Cloud,
a unified API platform for 400+ AI models across text, image, video, audio and 3D.

- **Model ID**: `bytedance/seedream-v5.0-flash/edit`
- **Built by**: ByteDance
- **Modality**: Image
- **Model page**: https://www.atlascloud.ai/models/bytedance/seedream-v5.0-flash/edit
- **API key**: https://www.atlascloud.ai/console/api-keys
- **Docs**: https://www.atlascloud.ai/docs

## Pricing on Atlas Cloud

- $0.018 per image
- Pay-as-you-go. No minimum spend, no subscription required.

> **These are the authoritative Atlas Cloud rates for this model.** Any price that
> appears in the vendor description further down refers to a different platform or
> a different model variant and does not apply here.

## Use this model from an AI agent

Atlas Cloud ships three first-party integration surfaces. All three authenticate
with the same API key via the `ATLASCLOUD_API_KEY` environment variable.

### MCP server

The official MCP server (`atlascloud-mcp`) exposes this model to any
MCP-compatible host — Claude Code, OpenAI Codex, Cursor, Gemini CLI, Goose,
Claude Desktop. One-line install:

```bash
# Claude Code
claude mcp add atlascloud -- npx -y atlascloud-mcp

# OpenAI Codex CLI
codex mcp add atlascloud -- npx -y atlascloud-mcp

# Gemini CLI
gemini mcp add atlascloud -- npx -y atlascloud-mcp

export ATLASCLOUD_API_KEY="your-api-key"
```

Then ask in plain English; the agent calls `atlas_generate_image` with `model: "bytedance/seedream-v5.0-flash/edit"`.
The server fetches each model's schema and validates parameters before submitting,
so invalid requests fail fast without spending credits.

MCP docs: https://www.atlascloud.ai/docs/mcp-server

### Agent Skills

`atlas-cloud-skills` is a portable skill package (API reference, code templates in
Python / Node.js / cURL, model IDs with pricing) for Claude Code, Cursor, Codex and
12+ other agents:

```bash
npx skills add AtlasCloudAI/atlas-cloud-skills
export ATLASCLOUD_API_KEY="your-api-key"
```

Skills docs: https://www.atlascloud.ai/docs/skills

### CLI

The `atlas` binary runs Atlas Cloud from a terminal or CI script. Async media jobs
are polled and downloaded automatically (use `--no-download` when a script only
needs the output URLs):

```bash
# Install (Homebrew, npm, or shell installer)
brew install AtlasCloudAI/tap/atlascloud
# npm install -g atlascloud-cli
# curl -fsSL https://raw.githubusercontent.com/AtlasCloudAI/cli/main/install.sh | sh

atlas auth login
atlas generate image bytedance/seedream-v5.0-flash/edit -p "Your prompt here"
```

CLI docs: https://www.atlascloud.ai/docs/cli

## HTTP API reference

- **Submit endpoint (POST)**: `https://api.atlascloud.ai/api/v1/model/generateImage` — start an async generation; returns a `prediction_id`
- **Poll endpoint (GET)**: `https://api.atlascloud.ai/api/v1/model/prediction/{prediction_id}` — poll this until the prediction finishes
- **Model ID**: `bytedance/seedream-v5.0-flash/edit`


## API Information

This model can be used via our HTTP API or more conveniently via our client libraries.
See the input and output schema below, as well as the usage examples.


### Input Schema

The API accepts the following input parameters:

- **`model`** (`string`, _required_):
  model name
  - Default: `"bytedance/seedream-v5.0-flash/edit"`

- **`prompt`** (`string`, _required_):
  The positive prompt for the generation. Recommended length: under 600 English words.

- **`images`** (`array[string]`, _required_):
  The images to edit. Accepts URLs or Base64 data URLs. Up to 10 reference images; input images are free of charge. Supported formats: JPEG, PNG, WEBP, BMP, TIFF, GIF, HEIC, HEIF.
  - Min items: 1
  - Max items: 10

- **`size`** (`string`, _optional_):
  Output image size in 'WIDTH*HEIGHT' pixels, chosen from the official 2K and 1.5K presets. Every image bills the same flat price regardless of size.
  - Default: `"2048*2048"`
  - Options: "2048*2048", "2368*1776", "1776*2368", "2816*1584", "1584*2816", "2496*1664", "1664*2496", "3136*1344", "1536*1536", "1792*1344", "1344*1792", "2048*1152", "1152*2048", "1872*1248", "1248*1872", "2352*1008"

- **`output_format`** (`string`, _optional_):
  Output image file format. Seedream v5.0 Flash supports both JPEG and PNG output.
  - Default: `"jpeg"`
  - Options: "jpeg", "png"

- **`background`** (`string`, _optional_):
  Controls whether the generated image carries an alpha channel. 'opaque' (default) returns a standard image with an opaque background; 'transparent' returns a PNG whose background is transparent. Transparent mode is only accepted when output_format is 'png' and exactly one input image is supplied, and that image must itself be a PNG carrying an alpha channel — a JPEG (or any format without alpha) is rejected.
  - Default: `"opaque"`
  - Options: "opaque", "transparent"

- **`enable_base64_output`** (`boolean`, _optional_):
  If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.
  - Default: `false`



**Required Parameters Example**:

```json
{
  "model": "bytedance/seedream-v5.0-flash/edit",
  "prompt": "",
  "images": [
    ""
  ]
}
```


**Full Example**:

```json
{
  "model": "bytedance/seedream-v5.0-flash/edit",
  "prompt": "",
  "images": [
    ""
  ],
  "size": "2048*2048",
  "output_format": "jpeg",
  "background": "opaque",
  "enable_base64_output": false
}
```


### Output Schema

The API returns the following output format:


- **`code`** (`integer`, _optional_):
  Status code of the call; 200 on success.

- **`message`** (`string`, _optional_):
  Status message of the call.

- **`data`** (`object`, _optional_):
  The prediction: id, model, status, outputs, urls and created_at. Poll GET /api/v1/model/prediction/{request_id} with data.id until status is completed or failed.



**Example Response**:

```json
{
  "code": 0,
  "message": "",
  "data": {}
}
```


## Usage Examples

### cURL

```bash
# Step 1: Start generation (async)
curl -X POST "https://api.atlascloud.ai/api/v1/model/generateImage" \
  -H "Authorization: Bearer $ATLASCLOUD_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "bytedance/seedream-v5.0-flash/edit",
  "prompt": "",
  "images": [
    ""
  ],
  "size": "2048*2048",
  "output_format": "jpeg",
  "background": "opaque",
  "enable_base64_output": false
}'

# Response will contain: {"code": 200, "data": {"id": "prediction_id", "status": "processing"}}

# Step 2: Poll for result (replace {prediction_id} with the id returned above)
curl -X GET "https://api.atlascloud.ai/api/v1/model/prediction/{prediction_id}" \
  -H "Authorization: Bearer $ATLASCLOUD_API_KEY"

# Keep polling until status is "completed", "succeeded" or "failed"
# When completed, outputs will contain the generated content URL(s)
```

## Additional Resources

### Documentation

- [Model Playground](https://www.atlascloud.ai/models/bytedance/seedream-v5.0-flash/edit)

## About this model

_Vendor-supplied description. Any pricing or endpoint mentioned below refers to_
_other platforms — use the Atlas Cloud values above._

#### 1. Introduction

**Seedream 5.0 Flash Edit** is the image-editing variant of Seedream 5.0 Flash (Dola-Seedream-5.0-flash), ByteDance's high-speed, cost-optimized member of the Seedream 5.0 family added in September 2026 (upstream model version `dola-seedream-5-0-flash-260915`). It covers the API model identifier:
- `bytedance/seedream-v5.0-flash/edit`

Supply one to ten reference images and a text instruction, and the model returns a single edited or composed image — typically in 15–20 seconds at 2K. It shares Seedream 5.0 Pro's editing contract — multi-reference fusion, precise interactive edits, and transparent-background output — on a faster inference path ([BytePlus ModelArk](https://docs.byteplus.com/en/docs/ModelArk/1541523)). ByteDance positions Dola-Seedream-5.0-flash for instant creation: a high-speed, cost-optimized model covering text-to-image generation, single- and multi-reference image workflows, precision editing, and layer decomposition, aimed at latency-sensitive scenarios such as mobile assistant applications, UGC content creation, and bulk-scale content production.

---

#### 2. Key Features & Innovations

- **Multi-Reference Composition**: Combine up to 10 reference images in one request — place a subject from one image into the scene of another, merge products, characters, and backgrounds — while keeping the untouched parts of the source intact.

- **Precise Interactive Editing**: Target edits by describing locations in natural language or by coordinates, selection boxes, and arrows drawn on the input, for edits that change exactly what was asked.

- **Transparent-Background Output**: With a single PNG input that carries an alpha channel and `background: "transparent"`, the result is returned as a PNG with a transparent background — ready for compositing and sticker or product-cutout workflows.

_(Description truncated. Full text on the model page.)_

---

Atlas Cloud — one API for 400+ AI models. Model page: https://www.atlascloud.ai/models/bytedance/seedream-v5.0-flash/edit · Docs: https://www.atlascloud.ai/docs