LiteFold Launches LiteMol-1, a Multi-Molecule Diffusion Foundation Model for Drug Design

anshulkundaje · x · 2026-08-21

LiteFold introduces LiteMol-1, its first foundation model: a multi-molecule diffusion language model pre-trained from scratch.

Structure-based design models (BoltzGen, O-Design, RFdiffusion) are now the de facto standard for biomolecule design, but they are expensive at scale — campaigns often generate tens of thousands of designs and filter down to a handful. They are also optimized mainly around binding, ignoring ADME, toxicity, drug-likeness, membrane permeability, synthesizability, and selectivity.

With a single set of weights, LiteMol-1 can conditionally generate small molecules, peptides, cyclic peptides and more.

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