FLUX.1 Kontext Pro Image Generation

Context-aware image generation and editing that preserves subjects and visual style across changes.

Provider

Black Forest Labs

Model ID

flux-kontext-pro

Endpoint

POST /api-platform/v1/generations

Open model playground Create API key

Model notes

For editing, include at least one referenceImages URL.

Request parameters

Parameter	Type	Required	Description
`model`	string	Yes	Stable PixMind model ID. Use `flux-kontext-pro`. Allowed values: `flux-kontext-pro`
`prompt`	string	Yes	Natural-language generation or editing instructions.
`aspectRatio`	string	No	Requested output aspect ratio. Allowed values: `1:1`, `16:9`, `4:3`, `9:16`, `3:4`, `3:2`, `2:3`, `21:9` Default: `1:1`
`referenceImages`	string[] (URI)	No	Reference image URLs used for editing, composition, subject, or style guidance.

Request example

cURL

curl https://aihub-admin.aimix.pro/api-platform/v1/generations \
  -H "Authorization: Bearer $PIXMIND_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "flux-kontext-pro",
  "prompt": "Replace the background with a warm modern kitchen while keeping the product unchanged",
  "aspectRatio": "4:3",
  "referenceImages": [
    "https://example.com/source.jpg"
  ]
}'

JavaScript

const response = await fetch("https://aihub-admin.aimix.pro/api-platform/v1/generations", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.PIXMIND_API_KEY}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
  "model": "flux-kontext-pro",
  "prompt": "Replace the background with a warm modern kitchen while keeping the product unchanged",
  "aspectRatio": "4:3",
  "referenceImages": [
    "https://example.com/source.jpg"
  ]
})
});

const task = await response.json();

Accepted task response

Generation is asynchronous. Save taskId and poll GET /api-platform/v1/tasks/{taskId} until status is ready or failed.

200 OK

{
  "code": 1000,
  "data": {
    "id": "img_44160",
    "taskId": 44160,
    "type": "image",
    "model": "flux-kontext-pro",
    "status": "processing"
  }
}

API pricing

Configuration	Price
API price not published	—

API pricing uses the apiPlatform role and is separate from PixMind Studio credits. The accepted task response is the final pricing snapshot.