YOLO-World Model¶
Class: YoloWorldModelBlockV1
Source: inference.core.workflows.core_steps.models.foundation.yolo_world.v1.YoloWorldModelBlockV1
Run YOLO-World, a zero-shot object detection model, on an image.
YOLO-World accepts one or more text classes you want to identify in an image. The model returns the location of objects that meet the specified class, if YOLO-World is able to identify objects of that class.
We recommend experimenting with YOLO-World to evaluate the model on your use case before using this block in production. For example on how to effectively prompt YOLO-World, refer to the Roboflow YOLO-World prompting guide.
Type identifier¶
Use the following identifier in step "type" field: roboflow_core/yolo_world_model@v1to add the block as
as step in your workflow.
Properties¶
| Name | Type | Description | Refs |
|---|---|---|---|
name |
str |
Enter a unique identifier for this step.. | ❌ |
class_names |
List[str] |
One or more classes that you want YOLO-World to detect. The model accepts any string as an input, though does best with short descriptions of common objects.. | ✅ |
version |
str |
Variant of YoloWorld model. | ✅ |
confidence |
float |
Confidence threshold for detections. | ✅ |
The Refs column marks possibility to parametrise the property with dynamic values available
in workflow runtime. See Bindings for more info.
Available Connections¶
Compatible Blocks
Check what blocks you can connect to YOLO-World Model in version v1.
- inputs:
Image Preprocessing,Anthropic Claude,Image Slicer,Dynamic Crop,Bounding Box Visualization,Absolute Static Crop,SIFT Comparison,Stitch Images,Stitch OCR Detections,OpenAI,Email Notification,Stability AI Inpainting,EasyOCR,Llama 3.2 Vision,Florence-2 Model,Roboflow Custom Metadata,Dynamic Zone,Auto Rotate on Edges,Keypoint Detection Model,Stability AI Outpainting,Model Comparison Visualization,Slack Notification,Line Counter Visualization,Camera Calibration,Single-Label Classification Model,Clip Comparison,VLM As Detector,CogVLM,Camera Focus,Corner Visualization,Ellipse Visualization,PP-OCR,Morphological Transformation,Detections List Roll-Up,Anthropic Claude,Roboflow Visual Search,Color Visualization,Instance Segmentation Model,OpenAI,Triangle Visualization,Image Contours,Image Threshold,Current Time,Roboflow Visual Search Classifier,QR Code Generator,OpenAI-Compatible LLM,Florence-2 Model,Polygon Zone Visualization,Stitch OCR Detections,Roboflow Asset Library Attributes,GeoTag Detection,Microsoft SQL Server Sink,VLM As Classifier,Camera Focus,Image Convert Grayscale,Label Visualization,Llama 3.2 Vision,Stability AI Image Generation,MQTT Writer,Roboflow Dataset Upload,Local File Sink,Identify Outliers,Google Gemini,Event Writer,Depth Estimation,Google Gemini,OpenAI,Trace Visualization,Twilio SMS Notification,PLC EthernetIP,LMM For Classification,Object Detection Model,Webhook Sink,Halo Visualization,Buffer,Mask Visualization,Pixelate Visualization,Twilio SMS/MMS Notification,MoonshotAI Kimi,Dot Visualization,Image Stack,Multi-Label Classification Model,OPC UA Writer Sink,Google Gemini,Keypoint Visualization,Dimension Collapse,LMM,Image Slicer,OCR Model,Circle Visualization,Contrast Enhancement,Relative Static Crop,Morphological Transformation,Email Notification,Halo Visualization,Clip Comparison,Cosmos 3,Polygon Visualization,Qwen-VL,PLC Writer,Google Gemma,Crop Visualization,Qwen 3.5 API,Model Monitoring Inference Aggregator,Size Measurement,Icon Visualization,Heatmap Visualization,Motion Detection,Google Gemma API,Detections Consensus,CSV Formatter,Image Blur,Background Color Visualization,Grid Visualization,Blur Visualization,GLM-OCR,Anthropic Claude,Reference Path Visualization,Classification Label Visualization,Google Vision OCR,Perspective Correction,Background Subtraction,Polygon Visualization,Contrast Equalization,SIFT,Qwen 3.6 API,Text Display,MoonshotAI Kimi,OpenRouter,Qwen3.5-VL,Roboflow Vision Events,Identify Changes,OpenAI,PLC ModbusTCP,S3 Sink,Roboflow Dataset Upload - outputs:
Trace Visualization,SAM 3 Interactive,Time in Zone,Dynamic Crop,Mask Area Measurement,Detections Filter,BoT-SORT Tracker,Bounding Box Visualization,Byte Tracker,Velocity,Path Deviation,Pixelate Visualization,Dot Visualization,Stitch OCR Detections,Frame Delay,Distance Measurement,OC-SORT Tracker,Track Class Lock,Florence-2 Model,Roboflow Custom Metadata,Detections Combine,Detections Transformation,Byte Tracker,Time in Zone,PTZ Tracking (ONVIF),Circle Visualization,Model Comparison Visualization,Detections Classes Replacement,Byte Tracker,SAM2 Video Tracker,ByteTrack Tracker,Per-Class Confidence Filter,SORT Tracker,Camera Focus,Ellipse Visualization,Corner Visualization,Crop Visualization,Model Monitoring Inference Aggregator,Detections List Roll-Up,Size Measurement,Heatmap Visualization,Icon Visualization,Color Visualization,Detections Consensus,Overlap Analysis,Triangle Visualization,Detection Event Log,Detections Stitch,Background Color Visualization,Detections Stabilizer,Segment Anything 2 Model,Time in Zone,Blur Visualization,Detections Merge,Florence-2 Model,Stitch OCR Detections,Path Deviation,GeoTag Detection,Perspective Correction,Label Visualization,Detection Offset,Line Counter,Roboflow Dataset Upload,Roboflow Vision Events,Overlap Filter,Event Writer,Line Counter,Roboflow Dataset Upload
Input and Output Bindings¶
The available connections depend on its binding kinds. Check what binding kinds
YOLO-World Model in version v1 has.
Bindings
-
input
images(image): The image to infer on..class_names(list_of_values): One or more classes that you want YOLO-World to detect. The model accepts any string as an input, though does best with short descriptions of common objects..version(string): Variant of YoloWorld model.confidence(float_zero_to_one): Confidence threshold for detections.
-
output
predictions(object_detection_prediction): Prediction with detected bounding boxes in form of sv.Detections(...) object.
Example JSON definition of step YOLO-World Model in version v1
{
"name": "<your_step_name_here>",
"type": "roboflow_core/yolo_world_model@v1",
"images": "$inputs.image",
"class_names": [
"person",
"car",
"license plate"
],
"version": "v2-s",
"confidence": 0.005
}