EfficientDet vs Detectron2 vs RF-DETR: Object Detection Comparison (2026)
Quick answer. EfficientDet (a detector built on the EfficientNet backbone) and Detectron2 remain accurate but both are effectively unmaintained in 2026. For new object-detection projects, YOLO26 and RF-DETR beat both on speed and accuracy. Keep EfficientDet only for existing TFLite pipelines; keep Detectron2 for legacy research or panoptic segmentation. Last