bfl/flux-1/krea/image-to-image
Flux 1 Krea by BFL - AI-powered image editing, style transfer, and transformation. Edit photos with natural language instructions, remove backgrounds, change styles, and enhance images effortlessly.
PNG, JPEG, WebP, or GIF · 20 MiB maximum
Example output — click Run to generate your own
Send your first request
OpenAI-compatible endpoint with unified authentication and usage tracking.
https://api.sandbase.ai/v1/runbfl/flux-1/krea/image-to-imageInput Schema
7 parameters · 2 required · 5 optional
| Parameter | Type | Required | Description |
|---|---|---|---|
image | string | Required | The URL of the image to generate an image from. |
prompt | string | Required | The prompt to generate an image from. |
seed | integer | Optional | The same seed and the same prompt given to the same version of the model will output the same image every time. |
strength | number | Optional | The strength of the initial image. Higher strength values are better for this model. · Min: 0.01 · Max: 1 · Default: 0.95 |
output_format | string | Optional | The format of the generated image. · Options: jpeg, png · Default: "jpeg" jpegpng |
guidance_scale | number | Optional | Min: 1 · Max: 20 · Default: 4.5 |
num_inference_steps | integer | Optional | Min: 10 · Max: 50 · Default: 40 |
Output Schema
| Field | Type | Description |
|---|---|---|
id | string | Unique identifier for the generation task |
status | string | Task status: pending, running, completed, failed, timeout |
model | string | Model used for the generation |
outputs | array | Array of output items |
outputs[].url | string | URL of the generated artifact |
outputs[].content_type | string | MIME type (e.g. image/png, video/mp4) |
error | object | null | Error details if failed, null on success |
error.type | string | Machine-readable error type code |
error.message | string | Human-readable error description |
Async Workflow
This model uses asynchronous execution. Submit a request and poll for the result.
- Submit — POST to /v1/run, receive an
id - Poll — GET /v1/run/{id} until status is
completed,failed, ortimeout - Retrieve — Read
outputsfrom the completed response
Code Examples
Ready-to-run snippets
# Step 1: Submit
curl -X POST https://api.sandbase.ai/v1/run \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{
"model": "bfl/flux-1/krea/image-to-image",
"image": "https://static.sandbase.ai/examples/bfl/flux-1/krea/image-to-image/input_image_0.png",
"prompt": "A cat dressed as a wizard with a background of a mystic forest.",
"strength": 0.95,
"output_format": "jpeg",
"guidance_scale": 4.5,
"num_inference_steps": 40
}'
# Step 2: Poll result (replace <id>)
curl https://api.sandbase.ai/v1/run/<id> \
-H "Authorization: Bearer YOUR_API_KEY"API README
FLUX.1 Krea [dev]
FLUX.1 Krea [dev] applies the Krea-tuned FLUX aesthetic to source-conditioned generation. The supplied image anchors subject or composition, while the model reinterprets style, material, color, lighting, and atmosphere into a new polished visual rather than merely filtering the original pixels.
Choose it for art-direction upgrades, campaign variations, restyling, and reference-led concept development. State which source features must remain recognizable and describe the desired Krea-like presentation in terms of composition, lighting, texture, palette, and photographic or illustrative language.
Highlights
- Krea aesthetic transformation. Reinterprets a source through the model’s polished visual tuning.
- Source composition anchoring. Keeps useful subject and layout cues connected to the original image.
- Material and lighting restyling. Rebuilds surfaces, color, and illumination as part of the new treatment.
- Creative image-to-image variation. Produces a fresh designed result instead of a superficial filter effect.
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.
{
"image": "https://example.com/start-frame.png",
"output_format": "jpeg",
"prompt": "A cat dressed as a wizard with a background of a mystic forest."
}
Technical Specs
| Spec | Value |
|---|---|
| Model ID | bfl/flux-1/krea/image-to-image |
| Inputs | guidance_scale, image, num_inference_steps, output_format, prompt, seed, strength |
| Required inputs | prompt, image |
| Output fields | content_type, url |
| Execution | Async (submit, then poll for result) |
| Output Format | jpeg / png |
Related Models
bfl/flux-1/krea— Compare this concrete local family route.bfl/flux-1/krea/redux— Compare this concrete local family route.bfl/flux-1/dev— Compare this concrete local family route.