Vision Analysis
Back to Leaderboard

YOLOX-S

yolox

one-stage detector with CSPDarknet backbone

Parameters9.0M
GFLOPs13.5
Input Size640px
Best mAP39.0%
LicenseApache-2.0

Architecture

Type

one-stage

Backbone

CSPDarknet

Neck

PAFPN

Head

Decoupled

Benchmark Results

Performance on COCO val2017 across different hardware configurations

HardwareRuntimemAP@50-95FPSLatencyVRAM
NVIDIA A100PyTorch FP3239.0%42.623.5ms87 MB

Speed Breakdown(NVIDIA A100)

5.9ms
8.9ms
8.7ms
Preprocess
Inference
Postprocess (NMS)

Usage with LibreYOLO

from libreyolo import LIBREYOLO

# Load model (auto-downloads from HuggingFace if not found locally)
model = LIBREYOLO("libreyoloXs.pt")

# Run inference
result = model("image.jpg", conf=0.25, iou=0.45)

# Process results
print(f"Found {len(result)} objects")
print(result.boxes.xyxy)   # bounding boxes (N, 4)
print(result.boxes.conf)   # confidence scores (N,)
print(result.boxes.cls)    # class IDs (N,)
anchor-freenmsPaper: 40.5% mAP