# Seedream v5.0 Flash Text-to-Image — Atlas Cloud API > Dola-Seedream-5.0-flash, ByteDance's high-speed, cost-optimized image generation model built for instant creation. Generates a single image from a text prompt in seconds at 1K, 1.5K, or 2K - well suited to latency-sensitive scenarios such as mobile assistant apps, UGC content creation, and bulk-scale content production. This is the machine-readable API reference for **Seedream v5.0 Flash Text-to-Image** 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/text-to-image` - **Built by**: ByteDance - **Modality**: Image - **Model page**: https://www.atlascloud.ai/models/bytedance/seedream-v5.0-flash/text-to-image - **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/text-to-image"`. 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/text-to-image -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/text-to-image` ## 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/text-to-image"` - **`prompt`** (`string`, _required_): The positive prompt for the generation. Recommended length: under 600 English words. - **`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" - **`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/text-to-image", "prompt": "" } ``` **Full Example**: ```json { "model": "bytedance/seedream-v5.0-flash/text-to-image", "prompt": "", "size": "2048*2048", "output_format": "jpeg", "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/text-to-image", "prompt": "", "size": "2048*2048", "output_format": "jpeg", "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/text-to-image) ## 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** (Dola-Seedream-5.0-flash) is ByteDance's high-speed, cost-optimized member of the Seedream 5.0 image generation family, added in September 2026 (upstream model version `dola-seedream-5-0-flash-260915`). This README covers the API model identifier: - `bytedance/seedream-v5.0-flash/text-to-image` Seedream 5.0 Flash shares Seedream 5.0 Pro's request contract, resolution envelope, and multilingual prompt support, but is tuned for latency and volume: a single 2K image typically completes in 10–20 seconds. 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. ([BytePlus ModelArk](https://docs.byteplus.com/en/docs/ModelArk/1541523)) --- #### 2. Key Features & Innovations - **Fast Single-Image Generation**: Returns one image per request, typically in 10–20 seconds at 2K and faster at 1K/1.5K, without a slow deep-thinking pass — well suited to interactive tools and on-demand pipelines. - **Pro-Class Resolution Envelope**: Output from 921,600 (1280×720) to 4,624,220 total pixels with any aspect ratio from 1:16 to 16:1, including official 2K presets such as 2048×2048, 2816×1584 (16:9), and 3136×1344 (21:9). - **Multilingual Prompts**: Beyond Chinese and English, prompts are understood in Russian, Arabic, Filipino, Thai, Turkish, Korean, Malay, Spanish, Portuguese, Indonesian, French, German, Vietnamese, and Japanese. - **Clean Typography**: Inherits the Seedream 5.0 family's text-rendering strength for signage, posters, and labels rendered directly into the image. - **PNG and JPEG Output**: Choose lossless PNG for design handoff or compact JPEG for web delivery; results are returned as hosted URLs or Base64. --- _(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/text-to-image · Docs: https://www.atlascloud.ai/docs