# Seedream 5.0 Flash

ID: bytedance/seedream-v5-flash
Type: image generation
Vendor: ByteDance
Description: Seedream 5.0 Flash is ByteDance Seed’s fast, lower-cost image model for text-to-image and multi-reference editing, capped at a 2K pixel area.

## Modes and inputs
- Text → Image (`txt->img`)
  - Prompt only, no input images
- Image → Image (`img->img`)
  - any image: up to 10

## Output
- Aspect ratios: 1:1, 4:3, 3:4, 16:9, 9:16, 3:2, 2:3, 21:9. Other ratios snap to the closest one. Without `size` (or with `"auto"`), Mynth picks a ratio for the prompt.
- 4K: no
- Negative prompt: not supported (dropped, no error)

## Pricing (USD)
- Per image: $0.027
- Per input image: Free, charged once for each image it goes into
- Only successful results are charged.

## Usage
Set the request's `model` field to `bytedance/seedream-v5-flash`. Always pass it explicitly.

TypeScript SDK, Text → Image:

```ts
import Mynth from "@mynthio/sdk";

const mynth = new Mynth();

const task = await mynth.image.generate({
  model: "bytedance/seedream-v5-flash",
  prompt: "A lighthouse at dusk, 35mm film",
  size: "16:9",
});

console.log(task.urls[0]);
```

REST (cURL), Text → Image:

```bash
curl https://api.mynth.io/image/generate \
  -H "Authorization: Bearer $MYNTH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance/seedream-v5-flash",
    "prompt": "A lighthouse at dusk, 35mm film",
    "size": "16:9"
  }'
```

CLI, Text → Image:

```bash
npx @mynthio/cli image generate \
  -m bytedance/seedream-v5-flash \
  -p "A lighthouse at dusk, 35mm film" \
  -s 16:9
```

TypeScript SDK, Image → Image:

```ts
import Mynth from "@mynthio/sdk";

const mynth = new Mynth();

const task = await mynth.image.generate({
  model: "bytedance/seedream-v5-flash",
  prompt: "The same lighthouse, now in heavy fog",
  inputs: ["https://cdn.example.com/lighthouse.png"],
});

console.log(task.urls[0]);
```

REST (cURL), Image → Image:

```bash
curl https://api.mynth.io/image/generate \
  -H "Authorization: Bearer $MYNTH_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "bytedance/seedream-v5-flash",
    "prompt": "The same lighthouse, now in heavy fog",
    "inputs": ["https://cdn.example.com/lighthouse.png"]
  }'
```

CLI, Image → Image:

```bash
npx @mynthio/cli image generate \
  -m bytedance/seedream-v5-flash \
  -p "The same lighthouse, now in heavy fog" \
  -i https://cdn.example.com/lighthouse.png
```

## Links
- Model page: https://mynth.io/models/bytedance%2Fseedream-v5-flash
- Playground: https://mynth.io/playground?_m=bytedance%2Fseedream-v5-flash
- Vendor page: https://fal.ai/models/bytedance/seedream/v5/flash/text-to-image
- API docs (image generation request): https://docs.mynth.io/reference/image-generation-request
- Quickstart: https://docs.mynth.io/quickstart
- SDK (JS/TS): https://docs.mynth.io/sdk/js-ts/overview
- This page as JSON: https://mynth.io/models/bytedance%2Fseedream-v5-flash.json

## More from ByteDance
- Seedance 2.0 Mini [bytedance/seedance-2.0-mini]: https://mynth.io/models/bytedance%2Fseedance-2.0-mini.md
- Seedream 5.0 Lite [bytedance/seedream-5.0-lite]: https://mynth.io/models/bytedance%2Fseedream-5.0-lite.md
- Seedream Pro [bytedance/seedream-pro]: https://mynth.io/models/bytedance%2Fseedream-pro.md

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