Skip to main content
POST
Flux 2 Flex Image-to-Image
Edit images using Black Forest Labs’ FLUX.2 Flex model. Key Features:
  • Adjustable Quality-Speed Tradeoff - Control generation steps to balance quality and speed
  • Superior Text Rendering - Industry-leading text generation for posters and product images
  • Multi-Reference Blending - Blend up to 10 reference images while maintaining style consistency
  • High Resolution Editing - Supports up to 4MP resolution with excellent detail preservation

Authorizations

Authorization
string
header
required

Please use your API Token for authentication

Body

application/json

Task parameters

input_urls
string[]
required

Input image URL list (required, 1-8 images)

Required array length: 1 - 8 elements
Example:
prompt
string
required

Prompt (required, 3-5000 characters)

Required string length: 3 - 5000
Example:

"Replace the can in image 2 with the can from image 1"

aspect_ratio
enum<string>
default:auto

Aspect ratio (optional, default auto)

Available options:
1:1,
4:3,
3:4,
16:9,
9:16,
3:2,
2:3,
auto
Example:

"auto"

resolution
enum<string>
default:1K

Resolution (optional, default 1K)

Available options:
1K,
2K
Example:

"1K"

Response

OK

task_id
string
required

Task ID

Example:

"01234567-89ab-cdef-0123-456789abcdef"