FLUX.1 [dev] Redux

bfl/flux-1/dev/redux

Flux 1 Dev Redux by BFL - AI-powered image editing, style transfer, and transformation. Edit photos with natural language instructions, remove backgrounds, change styles, and enhance images effortlessly.

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Base price: $0.03USD / run
Execution: async
Model type: image
Input fields: 6

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Playground

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Input

Image URL(string)

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PNG, JPEG, WebP, or GIF · 20 MiB maximum

The URL of the image to generate an image from.

This field is required.

Output Format(string)

The format of the generated image. Allowed values: jpeg, png.

Aspect Ratio(string)

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.

Seed(integer)

The same seed and the same prompt given to the same version of the model will output the same image every time.

Guidance Scale(number)

120

Range: 1 to 20.

Num Inference Steps(integer)

150

Range: 1 to 50.

OutputReady

Your output will appear here

Complete the inputs, then click Run.

Model card

Specifications

Pricing

Base price: $0.03 / run

Context & modalities

Input: Schema-defined
Output: image

Capabilities

Chat: Not supported
Vision: Not supported
Reasoning: Not supported
Structured output: Not supported
Function calling: Not supported
Audio input: Not supported

Access

Provider: BFL
Model ID: bfl/flux-1/dev/redux
Execution: async
Base URL: https://api.sandbase.ai
API: Unified Run API
Endpoint: /v1/run

API README

FLUX.1 [dev] Redux

FLUX.1 [dev] Redux adds Redux reference-image guidance to the open development model, extracting high-level aesthetic and compositional cues from a source and using them to generate a related visual. It offers a research-friendly way to study reference conditioning and build visual-variation tools around FLUX.1.

Use references that clearly express the palette, layout, texture, or mood worth transferring. This model fits mood-board expansion, source-related concept generation, and custom reference pipelines where creators want new content that remains aesthetically connected to an existing image.

Highlights

Open reference conditioning. Exposes Redux-style visual guidance through the development model.
Composition and mood transfer. Carries high-level structure, palette, texture, and atmosphere from a source.
Fresh visual derivation. Creates related imagery without performing a pixel-level copy.
Custom reference experimentation. Supports local research and adapted reference-to-image workflows.

Pricing

Billing unit	Price
Per request	$0.025

When to Use

✅ Good fit	❌ Consider alternatives
The model's named workflow matches the source material and intended output	A different input modality or model route is required
A managed asynchronous result is suitable for the production pipeline	A synchronous, interactive editor is essential
The documented controls cover the required duration, framing, or format	The project needs controls outside this endpoint's schema
Creative iteration benefits from a repeatable request structure	Exact deterministic pixels, frames, geometry, or samples are mandatory
A finished downloadable media asset is the desired deliverable	Editable source layers or a native project file are required

Prompt Guide

For image-conditioned generation, state the intended result first, then add the subject or source treatment, progression, style, and delivery constraints. Keep one creative variable per phrase, use the documented field names for controls, and change one setting at a time when comparing results.

{
  "aspect_ratio": "21:9",
  "image": "https://example.com/start-frame.png",
  "output_format": "jpeg"
}

Technical Specs

Spec	Value
Model ID	`bfl/flux-1/dev/redux`
Inputs	aspect_ratio, guidance_scale, image, num_inference_steps, output_format, seed
Required inputs	image
Output fields	content_type, url
Execution	Async (submit, then poll for result)
Aspect Ratio	21:9 / 16:9 / 3:2 / 4:3 / 5:4 / 1:1 / 4:5 / 3:4 / 2:3 / 9:16
Output Format	jpeg / png

Related Models

bfl/flux-1/dev — Compare this concrete local family route.
bfl/flux-1/dev/edit — Compare this concrete local family route.
bfl/flux-1/dev/image-to-image — Compare this concrete local family route.

Start building

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

Production API

Unified Run API endpoint

https://api.sandbase.ai/v1/run

Model ID

bfl/flux-1/dev/redux

# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
  -X POST "https://api.sandbase.ai/v1/run" \
  -H "Authorization: Bearer $SANDBASE_API_KEY" \
  -H "Content-Type: application/json" \
  --data-binary @- <<'SANDBASE_JSON'
{
  "model": "bfl/flux-1/dev/redux",
  "image": "https://static.sandbase.ai/examples/bfl/flux-1/dev/redux/input_image_0.png",
  "output_format": "jpeg",
  "guidance_scale": 3.5,
  "num_inference_steps": 28
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
  status=$(printf '%s' "$result" | jq -r .status)
  case "$status" in completed|failed|timeout) break ;; esac
  sleep 2
  result=$(curl --fail-with-body --silent \
    -H "Authorization: Bearer $SANDBASE_API_KEY" \
    "https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"

Choose your model

Compare models

All image & video models

Model	Type	Default price	Released
FLUX.1 [dev] ReduxThis model `BFL`	Image	$0.03 / run	Jun 2, 2025
Flux 3 Text to Image `BFL`	Image	$0.05 / run	Oct 1, 2026
Flux 3 Edit `BFL`	Image	$0.05 / run	Oct 1, 2026
Flux 2 Klein 4B Edit `BFL`	Image	$0.02 / run	Jan 15, 2026
Flux 2 Klein 9B Edit `BFL`	Image	$0.02 / run	Jan 15, 2026
Flux 2 Klein 9B Text to Image `BFL`	Image	$0.01 / run	Jan 15, 2026

Questions

FAQ

How do I call BFL FLUX.1 [dev] Redux through SandBase?

Create a SandBase API key, then send requests with the model ID "bfl/flux-1/dev/redux" to Unified Run API (/v1/run) at https://api.sandbase.ai. The request examples on this page show the exact payload.

Do I need a separate BFL account?

No. One SandBase API key and balance gives you access to BFL FLUX.1 [dev] Redux and the other models in the catalog; you do not need to sign up with BFL separately.