# FLUX 2 Edit API

> ᡥᡡᠯᠠᠨ ᡳ ᠵᠠᠰᠠᠨ ᡩᡝᠵᡳᠨ 4 ᡤᠠᠳᠠᠨ ᡩᡝ ᡝᠮᡤᡳ ᠠᠮᠪᡠᠯᠠᠮᡝ ᠵᠠᠰᠠᠮᠪᡳ

`image_urls` ᡳ 4 ᡤᠠᠳᠠᠨ ᡩᡝ ᡝᠮᡤᡳ ᡥᡡᠯᠠᠨ ᡳ ᠵᠠᠰᠠᠨ ᡩᡝᠵᡳᠨ ᠵᠠᠰᠠᠮᠪᡳ (ᡝᠮᡤᡳ ᠪᡝ ᠣᠮᠣᠯᠣᠮᡝ ᠠᠮᠪᡳ). `guidance_scale` 0 ᡩᡝ 20, inference ᠵᠠᠯᡠ 4 ᡩᡝ 50, ᡥᡡᠯᠠᠨ ᡳ ᠵᠠᠰᠠᠨ ᠪᡝ ᠵᠠᠪᠰᠠᠨᠠᠮᠪᡳ. `image_size` 512 ᡩᡝ 2048 ᠵᡠᠯᡝᠨ, 4 ᡤᠠᠳᠠᠨ, jpeg, png ᡠᠨᡩᡝ webp.

- Model id: `flux-2/edit`
- Made by: Black Forest Labs
- Category: Image Editing
- Output: image
- Price per megapixel: $0.012 / megapixel (cheapest run $0.012 (12 API credits))
- Run: `POST https://api.doitong.com/v1/run/flux-2/edit`
- Quote: `POST https://api.doitong.com/v1/quote/flux-2/edit`
- Docs page: https://doitong.com/mnc/developers/models/flux-2/edit

## Pricing

Price: **$0.012 / megapixel**. Price per megapixel: the input files are measured before the run (length, resolution, frame rate). The quote measures the same files and is exactly what the run charges.

The full example input below costs $0.024 = 24 API credits (2 MP × $0.012).

Prices are the upstream price in USD, paid from the API balance in API credits (1000 API credits = 1 USD). `POST https://api.doitong.com/v1/quote/flux-2/edit` with the same JSON body returns the exact price for that input; the quote is exactly what a run charges. Invalid input is never charged and failed or canceled requests are refunded automatically.

## Input parameters

Send either the canonical name or the native field name (not both). Canonical names are the same across models.

| Parameter | Canonical name | Type | Required | Default | Allowed values / range | Description |
|---|---|---|---|---|---|---|
| `prompt` |  | string | yes |  |  | ᡤᠠᠳᠠᠨ ᡳ ᡥᠠᠯᠠᠨ ᠪᡝ ᠰᠠᡵᡴᡳᠶᠠᡵᠠ ᡥᡡᠯᠠᠨ. |
| `guidance_scale` |  | number | no | `2.5` | 0 – 20 | ᠵᠠᠯᠠᠨ ᡳ ᡥᡡᠰᡠᠨ ᠪᡝ ᠮᠣᡩᡝᠯ ᡳ ᠨᡳᠶᠠᠯᠮᠠ ᡳ ᡤᠠᠳᠠᠨ ᠪᡝ ᡤᠠᡳᠮᡝ ᡤᠠᠯᡤᠠᠨᠠᠮᡝ. |
| `seed` |  | integer \| null | no |  |  | ᠪᡠᠶᡝᠮᡝ ᡳ ᠵᠠᠯᡳᠨ ᡳ ᡠᠯᡥᠠᠨ; ᡳᠯᡳᠪᡠᡴᡠ ᠣᠮᡳᠶᠠᠯᠠᠮᡝ ᠵᠠᠯᡳᠨ ᠪᡝ ᡩᠠᠯᠵᡳᠮᡝ ᠰᠣᠨᡩᠣᠮᡝ. |
| `num_inference_steps` |  | integer | no | `28` | 4 – 50 | ᠶᠠᠪᡠᠯᠠᡵᠠ ᡠᠯᡥᡳᠰᡠ ᠪᠣᡩᠣᡵᠣ ᠠᠯᡥᠠ ᡳ ᡨᠣᠨ. |
| `image_size` |  | object {width, height} \| enum (string) \| null | no |  | `square_hd`, `square`, `portrait_4_3`, `portrait_16_9`, `landscape_4_3`, `landscape_16_9` | ᡳᠯᡳᠪᡠᠮᡝ ᡤᠠᠳᠠᠨ ᡳ ᠵᡠᡵᡤᠠᠨ, 512 ᠠᠴᠠ 2048 ᠫᡳᡲᠰᡝᠯ ᡥᡝᠴᡝ. |
| `num_images` | `num_outputs` | integer | no | `1` | 1 – 4 | ᠪᡠᠶᡝᠮᡝ ᡩᡝ ᠵᡠᠴᡝᠨ ᡳ ᠵᡠᠰᡝ ᡳ ᡩᡠᠯᠠᠨ᠉ |
| `acceleration` |  | enum (string) | no | `regular` | `none`, `regular`, `high` | ᡤᠠᠳᠠᠨ ᠪᡠᠶᡝᠮᡝ ᡳ ᠵᠠᠯᡳᠨ᠉ |
| `enable_prompt_expansion` |  | boolean | no | `false` |  | ᡥᡡᠯᠠᠨ ᡳ ᠠᠮᠠᠯᡤᠠᠨ ᠵᠠᠯᠠᠨ: `auto` ᡥᡡᠯᠠᠨ ᠪᡝ ᠵᠠᠯᠠᠨ ᡳ ᠵᡠᠵᡝᠨ ᠪᡝ ᠵᠠᠯᠠᠨᠠᠮᡝ. |
| `enable_safety_checker` |  | boolean | no | `true` |  | ᠠᠮᡤᠠᠨᡳ ᠵᠠᠯᡳᠨᠠᠮᠪᡳ; ᠠᠮᡤᠠᠨ ᠪᡝ ᡠᠵᡠᠯᠠᠮᡝ ᡤᠠᠳᠠᠨ ᠪᡝ ᡴᠠᡵᠠ ᠪᡠᠶᡝᠮᡝᠮᠪᡳ᠉ true ᠪᡝ ᡠᠵᡠᠯᠠᠮᡝᠨᡳ ᡩᠠᠯᡳᠨ; false ᠪᡝ ᡩᠠᠯᡳᠨ ᠠᡴᡠᠯᠠᠮᠪᡳ᠂ ᠵᡠᠯᡝ ᠵᡠᠯᡝᠨᡳ ᠪᡝ ᠠᡴᡠᠯᠠᠮᠪᡳ᠉ |
| `output_format` |  | enum (string) | no | `png` | `jpeg`, `png`, `webp` | ᠪᡠᠶᡝᠮᡝ ᠵᡠᠴᡝᠨ ᡳ ᡶᡳᠯᡝ ᡳ ᠵᡠᠰᡝ᠉ |
| `image_urls` | `images` | array of image URL | yes |  |  | URL ᠴᡳ ᠣᠯᡥᠣᠪᡳ ᡤᠠᠳᠠᠨ ᠵᠠᠰᠠᡴᠠᠨ; ᡳᠯᠠᠨ 4 ᠵᡠᠯᡝ ᠪᡝ ᠠᠯᡳᠮᠪᡳ. |

File parameters (`images`) take a public `https://` URL, a `data:` URI up to 10 MB, or the `file_url` of an upload from `POST /files`.

## Example input

Required parameters only:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "images": [
    "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  ]
}
```

A fuller example:

```json
{
  "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
  "image_urls": [
    "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
  ]
}
```

## Run it

Set `DOITONG_API_KEY` to a key from https://doitong.com/developers/dashboard#keys. `?wait=20` returns the finished request in the same call when it is ready within 20 seconds; otherwise poll `GET /requests/{id}` (it also accepts `?wait=`), or pass `webhook_url`.

### curl

```bash
# Run the model; wait up to 20 s for the finished result in the same call
curl -X POST "https://api.doitong.com/v1/run/flux-2/edit?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "image_urls": [
      "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
    ]
  }'

# Still "queued" or "running"? Poll with the id from the response:
curl "https://api.doitong.com/v1/requests/REQUEST_ID?wait=20" \
  -H "Authorization: Bearer $DOITONG_API_KEY"
```

### JavaScript

```javascript
const API = "https://api.doitong.com/v1";
const headers = {
  "Authorization": "Bearer " + process.env.DOITONG_API_KEY,
  "Content-Type": "application/json",
};

// Run the model; wait up to 20 s for the finished result in the same call
let res = await fetch(API + "/run/flux-2/edit?wait=20", {
  method: "POST",
  headers,
  body: JSON.stringify({
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "image_urls": [
      "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
    ]
  }),
});
let request = await res.json();
if (!res.ok) throw new Error(request.error.code + ": " + request.error.message);

// Not finished yet: long-poll until it is
while (request.status === "queued" || request.status === "running") {
  res = await fetch(API + "/requests/" + request.id + "?wait=20", { headers });
  request = await res.json();
}
if (request.status !== "succeeded") throw new Error(JSON.stringify(request.error));
console.log(request.outputs.map((o) => o.url), request.cost.credits + " API credits ($" + request.cost.usd + ")");
```

### Python

```python
import os
import requests

API = "https://api.doitong.com/v1"
headers = {"Authorization": "Bearer " + os.environ["DOITONG_API_KEY"]}

payload = {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "image_urls": [
        "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg",
    ],
}

# Run the model; wait up to 20 s for the finished result in the same call
r = requests.post(API + "/run/flux-2/edit", params={"wait": 20}, json=payload, headers=headers)
request = r.json()
if not r.ok:
    raise RuntimeError(request["error"]["code"] + ": " + request["error"]["message"])

# Not finished yet: long-poll until it is
while request["status"] in ("queued", "running"):
    request = requests.get(API + "/requests/" + request["id"], params={"wait": 20}, headers=headers).json()
if request["status"] != "succeeded":
    raise RuntimeError(request["error"])
print([o["url"] for o in request["outputs"]], request["cost"]["credits"], "API credits", "$" + request["cost"]["usd"])
```

### MCP

The MCP server at `https://api.doitong.com/v1/mcp` exposes the tools `search_models`, `get_model`, `quote`, `run`, `get_request`, `cancel_request`, `list_requests`, `create_upload` and `get_account`. A `run` call for this model:

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "run",
    "arguments": {
      "model_id": "flux-2/edit",
      "input": {
        "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
        "image_urls": [
          "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
        ]
      },
      "wait_seconds": 20
    }
  }
}
```

## Response

Every call returns a request object. `status` is one of `queued`, `running`, `succeeded`, `failed`, `canceled`. `outputs` lists the generated files with URLs on our storage (kept forever, or 7 days with `?storage=temporary`; `storage` says which); `output` is the model's own result object with the same URLs.

```json
{
  "id": "req_8k2m4q7x1z9c3v5b6n0p2r4t",
  "object": "request",
  "model": "flux-2/edit",
  "status": "succeeded",
  "created_at": "2026-10-20T12:00:00Z",
  "started_at": "2026-10-20T12:00:02Z",
  "completed_at": "2026-10-20T12:00:09Z",
  "queue_position": null,
  "cost": {
    "credits": 24,
    "usd": "0.024",
    "charged": 24,
    "refunded": 0
  },
  "input": {
    "prompt": "A red fox trots through fresh snow at sunrise, soft golden light, shallow depth of field",
    "image_urls": [
      "https://content.doitong.com/images/showcase/v3/gen_fox_cartoon.jpg"
    ]
  },
  "output": {
    "images": [
      {
        "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
        "content_type": "image/jpeg",
        "file_name": "0-output.jpeg",
        "file_size": 1843200,
        "width": 1024,
        "height": 768
      }
    ],
    "timings": {},
    "seed": 42,
    "has_nsfw_concepts": [
      false
    ],
    "prompt": "string"
  },
  "outputs": [
    {
      "type": "image",
      "url": "https://content.doitong.com/dev-api/2026/10/20/req_8k2m4q7x1z9c3v5b6n0p2r4t/0-output.jpeg",
      "content_type": "image/jpeg",
      "file_size": 1843200,
      "width": 1024,
      "height": 768,
      "stored": true
    }
  ],
  "error": null,
  "metrics": {
    "inference_seconds": 6.8
  },
  "urls": {
    "self": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t",
    "cancel": "https://api.doitong.com/v1/requests/req_8k2m4q7x1z9c3v5b6n0p2r4t/cancel"
  }
}
```

### Output fields (`output`)

| Field | Type | Description |
|---|---|---|
| `images` | array of object {url, content_type, file_name, file_size, width, height} | ᠵᠠᠰᠠᡴᠠᠨ ᡳ ᠪᡠᠶᡝᠮᡝ ᡤᠠ᳉ᠠᠨ. |
| `timings` | object |  |
| `seed` | integer | ᠪᡠᠶᡝᠮᡝᠨᡳ ᠰᡝᠨᡩᡝᠨᡳ ᠵᠠᠯᡳᠨ; ᡳᠨᡠ ᠪᡳᠰᡳᡵᡝᠨ ᠪᡝ ᠵᠠᠯᡳᠨᠠᠮᠪᡳ᠉ |
| `has_nsfw_concepts` | array of boolean | ᠪᡠᠶᡝᠮᡝᠨᡳ ᠤᠯᡥᠠᠨ ᠤᠨᠠᠰᡳᠨ ᠩᡝᠮᡝ ᠪᡳ ᠰᡝᠮᡝ ᠵᠠᠯᡳᠨᠠᠮᠪᡳ᠉ |
| `prompt` | string | ᠪᡠᠶᡝᠮᡝᠨᡳ ᡥᡡᠯᠠᠨ᠉ |

## Related models

- [FLUX 2 Flash](https://doitong.com/developers/models/flux-2/flash.md) (`flux-2/flash`): $0.005 / megapixel
- [FLUX 2 Lora](https://doitong.com/developers/models/flux-2/lora.md) (`flux-2/lora`): $0.021 / megapixel
- [FLUX 2 Turbo](https://doitong.com/developers/models/flux-2/turbo.md) (`flux-2/turbo`): $0.008 / megapixel
- [FLUX.2 \[dev\]](https://doitong.com/developers/models/flux-2.md) (`flux-2`): $0.012 / megapixel
- [FLUX.2 \[pro\]](https://doitong.com/developers/models/flux-2-pro.md) (`flux-2-pro`): $0.015 / megapixel of output image
- [FLUX 2 Flash Edit](https://doitong.com/developers/models/flux-2/flash/edit.md) (`flux-2/flash/edit`): $0.005 / megapixel
- [FLUX 2 Lora Edit](https://doitong.com/developers/models/flux-2/lora/edit.md) (`flux-2/lora/edit`): $0.021 / megapixel
- [FLUX 2 Pro Edit](https://doitong.com/developers/models/flux-2-pro/edit.md) (`flux-2-pro/edit`): $0.105 / run

## Links

- HTML page: https://doitong.com/developers/models/flux-2/edit
- All models and guides for AI agents: https://doitong.com/developers/llms.txt
- OpenAPI 3.1 with this model's typed request body: https://doitong.com/developers/openapi.json?model=flux-2/edit
- Errors: https://doitong.com/developers/docs/errors
- Model details as JSON: https://api.doitong.com/v1/models/flux-2/edit