Auto3D v2.2 Released with AIMNet2 Integration

Major update brings faster conformer generation powered by AIMNet2 neural network potentials

Announcement

Auto3D v2.2 Released with AIMNet2 Integration

We are excited to announce the release of Auto3D v2.2, featuring full integration with AIMNet2 neural network potentials for faster and more accurate 3D molecular structure generation.

What’s New

AIMNet2 as Default Engine

Auto3D now uses AIMNet2 as the default neural network potential, replacing the previous ANI models. This brings significant improvements:

  • Broader Coverage: Support for 14 elements covering >90% of drug-like molecules
  • Charged Species: Accurate handling of ions and charged molecules
  • Improved Accuracy: Better energy rankings for conformer selection

Performance Improvements

  • 5× faster geometry optimization with GPU acceleration
  • Lower memory footprint for batch processing
  • Parallel processing for high-throughput workflows

New Features

  • Tautomer enumeration and ranking
  • Improved command-line interface
  • Better integration with RDKit and ASE
  • Support for periodic boundary conditions

Installation

pip install --upgrade auto3d

Quick Example

from auto3d import Auto3D

# Generate conformers from SMILES
result = Auto3D("CCO")  # Ethanol
conformers = result.get_conformers()

print(f"Found {len(conformers)} low-energy conformers")

Resources

Acknowledgments

This work was supported by NSF and NIH grants. We thank all contributors and users who provided feedback to improve Auto3D.


Try the new Auto3D and let us know what you think!