seedinteger
The seed to use for the generation.
bfl/flux-2/max/editFlux 2 Max 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
Customize your input with more control.
PNG, JPEG, WebP, or GIF · 20 MiB maximum each
Select an example to load its inputs and result into the playground.
{
"prompt": "A high-fashion magazine cover featuring an android in an avant-garde geometric cloth dress, with logo prints from @Image1. The backdrop is an eye-catching scenery. The title text 'FAL MAGAZINE' spans the top in bold white serif font. Overlay text at the bottom right reads 'THE FUTURE OF AI' in a sleek, thin sans-serif font."
}Human preference
Elo ratings from blind side-by-side votes, compared with other image and video models.
Rankings sourced from Artificial Analysis Arena
Image-editing arena: people pick the better of two edits of the same image and instruction, without seeing the model names.
FLUX.2 [max], BFL's highest-quality FLUX.2 tier, with the best prompt following and detail. Edit or combine images with an instruction.
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Text instruction. |
images | image URL[] | — | Images to edit or combine, Image 1, Image 2, … |
output_format | jpeg / png | jpeg | 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. |
$0.10 per image.
| Request | Price |
|---|---|
| One image | $0.10 |
Failed runs are not charged.
Other FLUX.2 endpoints: bfl/flux-2/pro/edit, bfl/flux-2/flex/edit, bfl/flux-2/dev/edit, bfl/flux-2/turbo/edit, bfl/flux-2/max.
Start building
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "bfl/flux-2/max/edit",
"images": [
"https://static.sandbase.ai/examples/bfl/flux-2/max/edit/input_images_0.jpg"
],
"prompt": "A high-fashion magazine cover featuring an android in an avant-garde geometric cloth dress, with logo prints from @Image1. The backdrop is an eye-catching scenery. The title text 'FAL MAGAZINE' spans the top in bold white serif font. Overlay text at the bottom right reads 'THE FUTURE OF AI' in a sleek, thin sans-serif font.",
"output_format": "jpeg"
}
SANDBASE_JSON
)
run_id=$(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"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.
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
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"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.
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.
seedintegerThe seed to use for the generation.
imagesarrayList of URLs of input images for editing
promptstringrequiredThe prompt to generate an image from.
aspect_ratiostringThe 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_formatstringThe format of the generated image.
Default: "jpeg"
Possible values: "jpeg", "png"
{
"model": "bfl/flux-2/max/edit",
"images": [
"https://static.sandbase.ai/examples/bfl/flux-2/max/edit/input_images_0.jpg"
],
"prompt": "A high-fashion magazine cover featuring an android in an avant-garde geometric cloth dress, with logo prints from @Image1. The backdrop is an eye-catching scenery. The title text 'FAL MAGAZINE' spans the top in bold white serif font. Overlay text at the bottom right reads 'THE FUTURE OF AI' in a sleek, thin sans-serif font.",
"output_format": "jpeg"
}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/dcc744ea-18b7-46e5-b2de-bafdb1626ed6/output/0aeca521-0c58-4f3b-adcc-45cc7c336148.jpg"
}
]