BiRefNet v1 Base – COD
Available with Zero Data RetentionThis BiRefNet variant is specialized for camouflaged object detection, targeting objects that closely blend with their surroundings. It enhances subtle boundary contrast and improves detection reliability in low-visibility and texture-confusing scenarios.

API Reference
INTEGRATE
Complete technical specification for integration
RequestResponse
Examples4
CODE
Ready-to-use code snippets for common workflows
remove-background
Barrel Sauna Seasonal Relight Cutout$0.0006~6s
import { createClient } from '@runware/sdk'
const client = await createClient({ apiKey: process.env.RUNWARE_API_KEY })
await client.connect()
const [result] = await client.run({
model: 'runware:112@2',
inputs: {
image: 'https://assets.runware.ai/assets/inputs/e156a61e-9ba8-4da5-b74e-cbcb5799e5c3.jpg'
}
})import asyncio
import os
from runware import Runware
async def main():
async with Runware(api_key=os.environ["RUNWARE_API_KEY"]) as client:
results = await client.run({
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/e156a61e-9ba8-4da5-b74e-cbcb5799e5c3.jpg"
}
})
asyncio.run(main())curl https://api.runware.ai/v1 \
-H "Authorization: Bearer $RUNWARE_API_KEY" \
-H "Content-Type: application/json" \
-d '[
{
"taskType": "removeBackground",
"taskUUID": "a5000b31-1dcc-4fa9-84d0-6ed3bc864028",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/e156a61e-9ba8-4da5-b74e-cbcb5799e5c3.jpg"
}
}
]'runware run runware:112@2 \
inputs.image=https://assets.runware.ai/assets/inputs/e156a61e-9ba8-4da5-b74e-cbcb5799e5c3.jpg{
"taskType": "removeBackground",
"taskUUID": "a5000b31-1dcc-4fa9-84d0-6ed3bc864028",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/e156a61e-9ba8-4da5-b74e-cbcb5799e5c3.jpg"
}
}Response
{
"taskType": "imageBackgroundRemoval",
"taskUUID": "a5000b31-1dcc-4fa9-84d0-6ed3bc864028",
"imageUUID": "3443be53-cf94-4b18-a53b-72119d6d712b",
"imageURL": "https://im.runware.ai/image/os/a04d20/ws/5/ii/3443be53-cf94-4b18-a53b-72119d6d712b.png",
"cost": 0.0006,
"inputImageUUID": "2c7b2a3c-4106-46c9-942f-bcd5f4a8ddbc"
}remove-background
Wetland Auditor Profile Portrait Cutout$0.0006~7s
import { createClient } from '@runware/sdk'
const client = await createClient({ apiKey: process.env.RUNWARE_API_KEY })
await client.connect()
const [result] = await client.run({
model: 'runware:112@2',
inputs: {
image: 'https://assets.runware.ai/assets/inputs/06fe2254-089d-4aae-93ad-4ad576c639f2.jpg'
}
})import asyncio
import os
from runware import Runware
async def main():
async with Runware(api_key=os.environ["RUNWARE_API_KEY"]) as client:
results = await client.run({
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/06fe2254-089d-4aae-93ad-4ad576c639f2.jpg"
}
})
asyncio.run(main())curl https://api.runware.ai/v1 \
-H "Authorization: Bearer $RUNWARE_API_KEY" \
-H "Content-Type: application/json" \
-d '[
{
"taskType": "removeBackground",
"taskUUID": "a43cbfe4-f985-43b2-bdb3-605de33ccfd4",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/06fe2254-089d-4aae-93ad-4ad576c639f2.jpg"
}
}
]'runware run runware:112@2 \
inputs.image=https://assets.runware.ai/assets/inputs/06fe2254-089d-4aae-93ad-4ad576c639f2.jpg{
"taskType": "removeBackground",
"taskUUID": "a43cbfe4-f985-43b2-bdb3-605de33ccfd4",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/06fe2254-089d-4aae-93ad-4ad576c639f2.jpg"
}
}Response
{
"taskType": "imageBackgroundRemoval",
"taskUUID": "a43cbfe4-f985-43b2-bdb3-605de33ccfd4",
"imageUUID": "d4b4ae7b-99ea-4916-8255-c9f2d1c0cfb5",
"imageURL": "https://im.runware.ai/image/os/a04d20/ws/5/ii/d4b4ae7b-99ea-4916-8255-c9f2d1c0cfb5.png",
"cost": 0.0006,
"inputImageUUID": "1eb12dd6-03a0-4a06-a653-80242f781f73"
}remove-background
Field Recordist Editorial Cutout$0.0006~8s
import { createClient } from '@runware/sdk'
const client = await createClient({ apiKey: process.env.RUNWARE_API_KEY })
await client.connect()
const [result] = await client.run({
model: 'runware:112@2',
inputs: {
image: 'https://assets.runware.ai/assets/inputs/b35112b8-6003-4261-8159-040daee5c2c5.jpg'
}
})import asyncio
import os
from runware import Runware
async def main():
async with Runware(api_key=os.environ["RUNWARE_API_KEY"]) as client:
results = await client.run({
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/b35112b8-6003-4261-8159-040daee5c2c5.jpg"
}
})
asyncio.run(main())curl https://api.runware.ai/v1 \
-H "Authorization: Bearer $RUNWARE_API_KEY" \
-H "Content-Type: application/json" \
-d '[
{
"taskType": "removeBackground",
"taskUUID": "e787b11f-b76b-4f7c-a838-2ea05bc473c4",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/b35112b8-6003-4261-8159-040daee5c2c5.jpg"
}
}
]'runware run runware:112@2 \
inputs.image=https://assets.runware.ai/assets/inputs/b35112b8-6003-4261-8159-040daee5c2c5.jpg{
"taskType": "removeBackground",
"taskUUID": "e787b11f-b76b-4f7c-a838-2ea05bc473c4",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/b35112b8-6003-4261-8159-040daee5c2c5.jpg"
}
}Response
{
"taskType": "imageBackgroundRemoval",
"taskUUID": "e787b11f-b76b-4f7c-a838-2ea05bc473c4",
"imageUUID": "68ac650b-39b3-4097-bdc6-6d2735bec043",
"imageURL": "https://im.runware.ai/image/os/a07dlim3/ws/5/ii/68ac650b-39b3-4097-bdc6-6d2735bec043.png",
"cost": 0.0006,
"inputImageUUID": "bbfb9641-e14a-4c03-a8a7-3372cf5f3996"
}remove-background
Alpine Snowcat Twilight Relight Cutout$0.0006~7s
import { createClient } from '@runware/sdk'
const client = await createClient({ apiKey: process.env.RUNWARE_API_KEY })
await client.connect()
const [result] = await client.run({
model: 'runware:112@2',
inputs: {
image: 'https://assets.runware.ai/assets/inputs/96892244-c939-473c-834d-9350a9695be1.jpg'
}
})import asyncio
import os
from runware import Runware
async def main():
async with Runware(api_key=os.environ["RUNWARE_API_KEY"]) as client:
results = await client.run({
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/96892244-c939-473c-834d-9350a9695be1.jpg"
}
})
asyncio.run(main())curl https://api.runware.ai/v1 \
-H "Authorization: Bearer $RUNWARE_API_KEY" \
-H "Content-Type: application/json" \
-d '[
{
"taskType": "removeBackground",
"taskUUID": "9779e0bc-8327-4936-9b30-634938e7bac6",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/96892244-c939-473c-834d-9350a9695be1.jpg"
}
}
]'runware run runware:112@2 \
inputs.image=https://assets.runware.ai/assets/inputs/96892244-c939-473c-834d-9350a9695be1.jpg{
"taskType": "removeBackground",
"taskUUID": "9779e0bc-8327-4936-9b30-634938e7bac6",
"model": "runware:112@2",
"inputs": {
"image": "https://assets.runware.ai/assets/inputs/96892244-c939-473c-834d-9350a9695be1.jpg"
}
}Response
{
"taskType": "imageBackgroundRemoval",
"taskUUID": "9779e0bc-8327-4936-9b30-634938e7bac6",
"imageUUID": "04bf9bde-7839-4e0d-9522-75c3473d40b2",
"imageURL": "https://im.runware.ai/image/os/a02d21/ws/5/ii/04bf9bde-7839-4e0d-9522-75c3473d40b2.png",
"cost": 0.0006,
"inputImageUUID": "ca20c049-d526-44f9-802b-7a84e110649f"
}