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POST
FLUX.2 klein 9B

Headers

Authorization
string

Body

application/json
prompt
string
required

Text prompt describing the image.

Required string length: 1 - 2000
image_list
object[]

Optional reference images, e.g. [{"url": "https://..."}]. When provided, runs image-to-image.

Required array length: 1 - 9 elements
ratio
enum<string>

Aspect ratio of the generated image. Defaults to the model's own default when omitted.

Available options:
1:1,
2:3,
3:2,
4:3,
3:4,
16:9,
9:16
custom_callback_url
string<uri>

Optional. A publicly accessible HTTPS URL. When the task status changes (processing / success / failed), GoEnhance sends a POST request to this URL. The request body is identical to the response of GET /api/v1/jobs/detail. If your server does not respond with HTTP 200, the notification is retried up to 3 times, with a 3-second timeout per attempt.

Example:

"https://your-server.com/goenhance/callback"

Response

code
integer
required
msg
string
required
data
object
required