Molecular render representing Boltz-2

Boltz-2

Co-folding with built-in binding affinity prediction

Boltz-2 co-folds proteins with ligands, nucleic acids and cofactors while predicting micromolar binding affinities alongside structures. Trained on PDB complexes with affinity labels, it returns docked poses, confidence scores and estimated IC50 values. Useful for rapid triage of binder designs and virtual screening hitlists.

Boltz-2 is live on MolPilot — paste a sequence and press Fold.

At a glance

Input
Sequences and ligands (FASTA, SDF)
Output
Poses with affinity (mmCIF)
Developed by
MIT
Published
Passaro et al., 2025 · 2025
#co-folding#affinity#diffusion