relbench

Kapso by Leeroo: an engine that runs experiments toward an objective, deploys the best solution on your stack and learns from every run into a bank of lessons with a credence score and a boundary. First on RelBench and ALE-Bench, top open-source on MLE-Bench, above every human contestant at IOAI 2026.

A relational, explainable recommendation engine, built on Relational Deep Learning (the approach Kumo.ai and NVIDIA build on: predicting directly over a multi-table relational database, treated as a graph, instead of hand-built features).

Feature engineering vs relational deep learning vs tabular foundation models on RelBench rel-f1

Do GNNs on a relational database beat a flat model? A controlled ablation on RelBench rel-hm sales forecasting (Telecom Paris team project)

Ablation study of relational GNNs on RelBench: directionality, heterogeneity, encoders, depth (StructML 236605 final project)