seedinteger
The seed to use for the generation. If not provided, a random seed will be used.
Flux 2 Flash Edit
bfl/flux-2/flash/editFlux 2 Flash Edit is BFL's intelligent image editing model. Transform, retouch, and reimagine existing images using text prompts - from background replacement to artistic style conversion.
Try the model
Playground
Input
The prompt to edit the image.
Additional Settings More
Customize your input with more control.
PNG, JPEG, WebP, or GIF · 20 MiB maximum each
The URLs of the images for editing. A maximum of 4 images are allowed, if more are provided, only the first 4 will be used.
020
Guidance Scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you. Range: 0 to 20.
The format of the generated image. Allowed values: jpeg, png.
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.
The seed to use for the generation. If not provided, a random seed will be used.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "prompt": "Remove the meat from the hamburger" }
Human preference
Arena
Elo ratings from blind side-by-side votes, compared with other image and video models.
Rankings sourced from Artificial Analysis Arena
- Leaderboard
- Image Editing
- Rank
- #45 of 77
- Elo
- 1012 ±18
- Gap to #1
- −187
Image-editing arena: people pick the better of two edits of the same image and instruction, without seeing the model names.
- #40Seedream 4.51043±13
- #41Wan 2.71042±13
- #42HunyuanImage 3.0 (Tencent Cloud)1029±16
- #43FLUX.2 [dev] Turbo1019±18
- #44FLUX.2 [klein] 9B1015±13
- #45FLUX.2 [dev] Flash1012±18
- #46FLUX.2 [pro]1012±15
- #47Step Image Edit 21009±13
- #48FLUX.2 [dev]1000
- #49FLUX.2 [max]999±13
Flux 2 Flash Edit
FLUX.2 Flash, the fastest, lowest-cost FLUX.2 variant. Edit or combine images with an instruction.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Text instruction. |
images | image URL[] | — | Images to edit or combine, Image 1, Image 2, … |
guidance_scale | number 0–20 | 2.5 | How strictly to follow the prompt. |
output_format | jpeg / png | png | Output file format. |
aspect_ratio | 21:9 / 16:9 / 3:2 / 4:3 / 5:4 / 1:1 / 4:5 / 3:4 / 2:3 / 9:16 | — | Output shape. |
seed | integer | random | Fix it to compare prompt changes. |
Billing
$0.03 per output image, plus $0.005 for each input image after the first.
| Inputs | Price |
|---|---|
| 1 input image | $0.03 |
| 2 input images | $0.035 |
| 4 input images | $0.045 |
Failed runs are not charged.
Prompting
- Say which image is the base and what each other image contributes.
- List what must not change.
Limits
- One output image per request.
Also on SandBase
Other FLUX.2 endpoints: bfl/flux-2/max/edit, bfl/flux-2/pro/edit, bfl/flux-2/flex/edit, bfl/flux-2/dev/edit, bfl/flux-2/flash.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "bfl/flux-2/flash/edit",
"images": [
"https://static.sandbase.ai/examples/bfl/flux-2/flash/edit/output_url_0.png"
],
"prompt": "Remove the meat from the hamburger",
"output_format": "png",
"guidance_scale": 2.5
}
SANDBASE_JSON
)
run_id=$(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"2. Authentication
Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep the key on your server. Do not expose it in browser code or commit it to a repository.
3. Queue
Submit a request
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
Fetch request status and result
Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.
curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
-H "Authorization: Bearer $SANDBASE_API_KEY"4. Files
Hosted files
Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.
Uploading images
Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.
5. Schema
Input
imagesarray
The URLs of the images for editing. A maximum of 4 images are allowed, if more are provided, only the first 4 will be used.
promptstringrequired
The prompt to edit the image.
aspect_ratiostring
The aspect ratio of the generated image.
Possible values: "21:9", "16:9", "3:2", "4:3", "5:4", "1:1", "4:5", "3:4", "2:3", "9:16"
output_formatstring
The format of the generated image.
Default: "png"
Possible values: "jpeg", "png"
guidance_scalenumber
Guidance Scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you.
Default: 2.5
Minimum: 0
Maximum: 20
{
"model": "bfl/flux-2/flash/edit",
"images": [
"https://static.sandbase.ai/examples/bfl/flux-2/flash/edit/output_url_0.png"
],
"prompt": "Remove the meat from the hamburger",
"output_format": "png",
"guidance_scale": 2.5
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"source": "BFL/FLUX schema mirror",
"source_url": "https://docs.bfl.ai/flux_2/flux2_overview",
"url": "https://static.sandbase.ai/examples/cd008e59-0aab-4dc0-985d-24d220d7579d/output/af4eb736-e4b2-403b-8e66-9e30533ab4cf.png"
}
]