POST /fal-ai/flux-1/dev

Method: POSTEndpoint: /fal-ai/flux-1/dev

Image description text, describing the scene and content you want the model to generate. Required.

Request Parameters

Header Parameters

Content-Type
string
Optional
Example:
application/json
Authorization
string
Optional
Default Value:
Bearer {{YOUR_API_KEY}}

Body Parameters application/json

prompt
string
Required
Image description text, describing the scene and content you want the model to generate. Required.
num_images
integer
Optional
  // provider-specific example normalized for English documentation
image_size
Optional
  // provider-specific example normalized for English documentation
One of:
object
string
sync_mode
boolean
Optional
  // provider-specific example normalized for English documentation
guidance_scale
number
Optional
  // provider-specific example normalized for English documentation
num_inference_steps
integer
Optional
  // provider-specific example normalized for English documentation
seed
integer
Optional
  // provider-specific example normalized for English documentation
enable_safety_checker
boolean
Optional
  // provider-specific example normalized for English documentation
Example
{
"prompt"
:
"string"
,
"num_images"
:
0
,
"image_size"
:
{
}
,
"sync_mode"
:
true
,
"guidance_scale"
:
0
,
"num_inference_steps"
:
0
,
"seed"
:
0
,
"enable_safety_checker"
:
true
}

Example Request

Shell

curl --location --request POST '/fal-ai/flux-1/dev' \
--header 'Authorization: Bearer {{YOUR_API_KEY}}' \
--header 'Content-Type: application/json' \
--data-raw '{
    "prompt": "string",
    "num_images": 0,
    "image_size": {},
    "sync_mode": true,
    "guidance_scale": 0,
    "num_inference_steps": 0,
    "seed": 0,
    "enable_safety_checker": true
}'

Response

🟢 200 Success

Content Type: application/json

Response Schema

object

Example

{}