Background removal you steer with a prompt. Starts from the same clean cut as Bria RMBG, then adds, drops or isolates objects from plain words like "the person with the mat and the plant" or "only the chair". Original pixels, real alpha, nothing repainted.
Bria Guided Remove Background (bria/guided-remove-background) is a image model from Bria. Pricing via AIgateway: $0.030 per image. Call it via https://api.aigateway.sh/v1/images/generations — set model="bria/guided-remove-background".
curl https://api.aigateway.sh/v1/images/generations \
-H "Authorization: Bearer $AIGATEWAY_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"bria/guided-remove-background","prompt":"a serene cyberpunk city at dusk"}'{
"model": "bria/guided-remove-background",
"prompt": "A cyberpunk cat at sunset, cinematic lighting",
"n": 1,
"size": "1024x1024",
"response_format": "url" // or "b64_json"
}{
"created": 1776947082,
"data": [
{ "url": "https://media.aigateway.sh/img/abc123.png" }
// or { "b64_json": "iVBORw0KGgoAAAANSUhEU..." }
]
}from openai import OpenAI
client = OpenAI(base_url="https://api.aigateway.sh/v1", api_key="sk-aig-...")
r = client.images.generate(
model="bria/guided-remove-background",
prompt="a cyberpunk cat at sunset",
size="1024x1024",
)
print(r.data[0].url)