Property-Guided Molecular Generation and Optimization via Latent Flows
This work addresses the challenge in molecular inverse design of simultaneously achieving desired properties, molecular validity, structural fidelity, and optimization stability. To this end, the authors propose MoltenFlow, a unified framework that integrates property-aligned representations, flow-matching generative priors, and gradient-guided optimization within a shared latent space. MoltenFlow is the first method to unify high-quality unconditional generation with controllable multi-objective conditional optimization. Experimental results demonstrate that, under a fixed evaluation budget, MoltenFlow significantly improves the validity, diversity, and optimization efficiency of generated molecules while maintaining robust stability and practical applicability.