Start building
SandBase

Appearance

Flux 2 Lora Gallery

POST/v1/run

Flux 2 Lora Gallery Add Background by BFL - AI-powered image editing, style transfer, and transformation. Edit photos with natural language instructions, remove backgrounds, change styles, and enhance images effortlessly.

Request body

Submit an async generation request. The model field selects the model; other fields are model-specific input parameters.

stringmodelrequired

Model identifier. Set to bfl/flux-2/lora-gallery/add-background.

Default: bfl/flux-2/lora-gallery/add-background

stringpromptrequired

The prompt describing the background to add. Must start with 'Add Background' followed by your description.

Default: Add Background forest

Optional<array<string>>images

The URLs of the images. Provide an image with a white or clean background.

Optional<string>output_format

The format of the output image

Allowed values: png, jpeg

Default: png

Optional<number>lora_scale

The strength of the add background effect.

Range: 0 to 2

Default: 1

Optional<string>aspect_ratio

The aspect ratio of the generated image.

Allowed values: 21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16

Optional<integer>seed

Random seed for reproducibility. Same seed with same prompt will produce same result.

Optional<integer>num_inference_steps

Number of denoising or inference steps to run when supported.

Range: 4 to 50

Default: 40

Optional<number>guidance_scale

Request parameter supported by this model.

Range: 0 to 20

Default: 2.5

Response Schema

The submit endpoint returns a run response. If its status is pending or running, poll GET /v1/run/{id} with the returned opaque ID until it reaches a terminal state.

stringidrequired

Opaque SandBase run identifier. Use it exactly as returned; no prefix is guaranteed.

stringstatusrequired

Current public run status.

Allowed values: pending, running, completed, failed, timeout

Optional<string>model

Public SandBase model name used for this run.

Optional<array<object>>outputs

Present only for completed runs. Each object is capability-specific; inspect the selected model schema for its fields.

Optional<object>error

Present only for failed or timeout runs. Contains a public error type and sanitized message.

Optional<string>error.type

Stable public error category.

Optional<string>error.message

Sanitized error message safe to show to clients.

Optional<object>usage

Usage details when available.

Model capabilities

array<string>capability_tagsrequired

Capabilities declared by the model registry.

Default: image-to-image

stringexecution_moderequired

Execution mode declared by the model registry.

Default: async