Flux 3 Image

Flux · Image · Text → Image

Generate and edit images with up to 10 references — multi-reference composition, precise local edits and text rendering, natively up to 4K.

Model ID: flux-3-imageWorkflow: bfl/v1/flux-3-image

Multi-Image Input4K

Try on Playground ↗

SDK API Advanced Usage Pricing

Authentication

Send your Picsart API key as a bearer token on every request.

Header

Authorization: Bearer <PICSART_API_KEY>

Make a request

One endpoint serves every model: POST to /workflows/v1/models/execute with the model id and its input in the body. The nesting is deliberate — the outer paramsis the envelope every workflow takes, and the inner one is this model's own input. Those inner names are the same unified ones the SDK takes, so a call translates one-to-one between the two — no per-vendor naming to learn.

cURL

curl -X POST 'https://api.picsart.com/workflows/v1/models/execute' \
  -H 'Authorization: Bearer $PICSART_API_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
  "params": {
    "model": "flux-3-image",
    "params": {
      "prompt": "A serene mountain lake at golden hour, ultra detailed",
      "aspectRatio": "auto",
      "resolution": "1k"
    }
  }
}'

Parameters

6 parameters, sent inside the inner paramsobject. Identical to the SDK's — one parameter set, whichever transport you use.

Parameter	Type	Required	Default	Details
`prompt` Prompt	`text`	yes	`—`	—
`aspectRatio`	`enum`	no	`auto`	auto, 21:9, 2:1, 16:9, 3:2, 7:5, 4:3, 5:4, 1:1, 4:5, 3:4, 5:7, 2:3, 9:16, 9:21, 1:2
`resolution`	`enum`	no	`1k`	768sq, 1k, 1.5k, 2k, 4k
`count`	`enum`	no	`1`	1, 2, 4, 6, 8, 10
`imageUrls` Reference Images	`file (image[])`	no	`—`	—
`safetyTolerance` Safety Tolerance	`range`	no	`2`	0–4

Response

The body arrives in the gateway's status envelope, so the output is at response.result — alongside the task id, its status and the credits charged. Asset models return url plus an items array; text models return text instead.

Response body

{
  "status": "success",
  "response": {
    "id": "task_abc123",
    "status": "COMPLETED",
    "result": {
      "url": "https://cdn.picsart.com/…/result",
      "items": [
        {
          "url": "https://cdn.picsart.com/…/result"
        }
      ],
      "model": "flux-3-image"
    },
    "usage": {
      "credits": 1
    }
  }
}