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POST
FLUX.1 Kontext Max
FLUX.1 Kontext [max] is a model with greatly improved prompt adherence and typography generation meet premium consistency for editing without compromise on speed.

Request Headers

string
required
Enum: application/json
string
required
Bearer authentication format, for example: Bearer {{API Key}}.

Request Body

string
required
The prompt to generate an image from.
string[]
The images to generate an image from. Limit to a maximum of 4 images.
integer
The random seed to use for the generation. Range [-1 ~ 2147483647].
number
The guidance scale to use for the generation. Default is 3.5. Range [1.0 ~ 20.0].
string
The safety tolerance level for the generated image. 1 being the most strict and 5 being the most permissive. Default is 2.
Enum: 1, 2, 3, 4, 5
string
The aspect ratio of the generated image.
Enum: 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16, 9:21

Response

string
required
Use the task_id to request the Task Result API to retrieve the generated outputs.
Last modified on September 12, 2025