We’re pleased to announce the 2026 OpenFF Virtual Workshops! Please join us in March and April for workshops on: - Simulating Post-Translationally Modified Proteins with the OpenFF Rosemary Alpha - Fitting a SMIRNOFF Force Field with PyTorch Details linked: docs.openforcefield.org/en/latest/wo...

Check out the recent webinar that our own Alyssa Travitz gave to @sbgrid.bsky.social, introducing our software! youtu.be/nCvg13F9Pco

Join our software webinar on February 10th to hear from Alyssa Travitz of the @omsf.io on @openfree.energy: An Open Source Ecosystem for Calculating Free Energies. Tuesday, February 10, 2026 - 12:00pm ET Register here: buff.ly/N7AYdjp #SBGrid #Webinars #StructuralBiology

Hey folks, @omsf.io is hiring a UX Engineer, our first in the org! We are looking for someone to work with us to build new experiences for computational chemists on a part-time contract basis! If this sounds cool, please apply! We would love to have you! omsf.io/community/jo...

What if you could tap into the computational power of thousands of volunteers worldwide to accelerate your drug discovery efforts? That’s what we’ve done by integrating alchemiscale and @openfree.energy with Folding@Home! Read more: alchemiscale.org/advancements... #openscience #drugdiscovery

In October of 2025 we released alchemiscale v0.7.0, and followed this up with v0.7.1 and v0.7.2. We wanted to take a moment to highlight these releases, and the improvements they bring for @openfree.energy users! alchemiscale.org/advancements... #compchem #opensource #alchemistry #openscience

OpenBind is a new open science effort to dramatically increase the number of protein:ligand structures in the PDB, pairing this with high-quality affinity data to enable a new generation of predictive structure and affinity models for drug discovery. Check it out: openbind.ai

Exciting news! We have a new website: omsf.io/alchemistry Your one-stop shop for everything related to our conference community. 🎉 BTW, registration is now open, so head over to secure your spot! We'll be sharing updates and details about the event. Bookmark it as there's plenty more to come!

OpenFE is ready for production! chemrxiv.org/engage/chemr... In collaboration with our industry partners, we ran benchmarking simulations of our hybrid-topology RBFE protocol on a large collection of both public and private protein-ligand binding datasets. #compchem

Jeff Wagner and Jen Clark ran a workshop at the @mdanalysis.bsky.social UGM in Arizona last week, in coordination with the @openfree.energy team.

Our command line interface (CLI) is designed to provide easy access to our tested, production-ready workflow. But if you are developing new methods or pioneering workflows, you may need the power and flexibility of our application programming interface (API) in #Python. #compchem

We've just released openfe v1.7, which includes includes new protocols for Separated Topologies and Absolute Binding Free Energies, as well as up to 2x faster simulations using the default settings. openfree.energy/science/upda...

We tested Sage 2.3.0rc2 from @openforcefield.org in RBFE benchmarks and found it improves accuracy on some of our benchmark systems like p38. Can't wait to see the GNN charge model become default!

We’re pleased to announce Sage 2.3.0 Release Candidate 2 (rc2)! Sage 2.3.0 will be the first OpenFF force field to use the AshGC neural network charge model, which was trained to AM1BCC ELF10 charges, and allows for rapid charge assignment for molecules with hundreds or thousands of heavy atoms.

Save the date, my fellow computational alchemists! The upcoming '26 Workshop on Free Energy Methods in Drug Design will be held in Barcelona, Spain, on May 4-6, 2026. The registration link will be sent soon!

OpenFE is being used to predict affinity of molecular glues! Check out the new preprint from the team at Ternary Therapeutics: chemrxiv.org/engage/chemr...

Did you know you can use custom force field parameters in OpenFE? Try out this cookbook to learn more! docs.openfree.energy/en/latest/co... #compchem

Alchemical free energy simulations will remain a crucial step in teh drug design process for their accuracy and reliability, especially in binding pockets that rearrange to accommodate different ligands. www.deepmirror.ai/post/boltz-2... #opensource #compchem #boltz2

It's exciting to see our software used as a benchmark for cutting-edge AI methods!

This poster illustrates the substantial flexibility of the open source @openfree.energy ecosystem, enabling unconventional approaches for applying free energy methods. As this ecosystem continues to evolve, I'm excited to see what users do with the advancements we make!

If you weren't at @feworkshop.bsky.social in Boston last week, you missed Hannah Baumann giving the first sneak peek at results from our partner benchmarking study! Fortunately for you, Josh Horton wrote up a blog post about the early results: blog.omsf.io/the-free-ene... #compChem

Aniket Margakar from Boehringer demonstrated how they use @omsf.io tools in house, praising both the tools and teams -- that's what we like to hear! He highly recommends NAGL and bespokefit for fast charge assignment and parameterization, and @openfree.energy for FE calcs

@jenkescheen.bsky.social showcased his work on @asapdiscovery.bsky.social and more recently with CharmTx, combining ML and more traditional free energy calculations. A lot, if not all, of his work is based on @openfree.energy, #openforcefield, and #alchemsicale. Read his papers for more details!

The Ecosystem Infrastructure team at @omsf.io (@ethanholz.com and David Swenson) built a tool for running github actions on self-hosted runners. Not the first such tool anyone's ever built, but designed to meet the particular needs of our community, and they delivered! blog.omsf.io/introducing-...

We just dropped a new minor release of the openfe software, v1.4.0! It adds several quality-of-life improvements to the command line interface, especially to the `gather` command. openfree.energy/release/2025... #opensource #compchem

in his blog, our very own Mike Henry demonstrates a powerful, useful skill - CONTAINERIZING. if you are looking for a good how-to on packaging tools, look no further.

Researchers at Charm Therapeutics have developed a hybrid framework for small molecule lead optimization in early-stage #DrugDiscovery. It incorporates both an #AI co-folding method and our protocol for calculating relative binding free energies. chemrxiv.org/engage/chemr...

Ready to start using OpenFE? Our documentation includes tutorials on how to use different aspects of our tooling: docs.openfree.energy/en/stable/tu... #opensource #compchem

#OpenFold was highlighted in the #ProteomicsPlaybook from Front Line Genomics. You can hear from our co-founder, @lucasnivon.bsky.social, and our business manager, Mallory Tollefson, to learn about why our consortium began and where we are going. frontlinegenomics.com/proteomics-p...

New minor release of our software! openfe v1.3.0 includes a number of quality-of-life enhancements, including new CLI features and reduced file size for saved trajectories. doi.org/10.5281/zeno... #openSource #compChem

Our colleagues at Datryllic, LLC lead the development of Alchemiscale, a distributed execution system for our protocols. They just released a roadmap for how to get to a feature-complete v1.0.0 release this year! alchemiscale.org/roadmaps/alc...

Our partnership with @boehringerglobal.bsky.social has been very productive. Last year, Benjamin Ries published scientific papers describing two different tools for setting up alchemical simulations, that he built as a contributor to our team. These tools are now integral to our RBFE protocol.

if you didn't see it before, you're seeing it now - we are back for OMSF 2025! and this year, we're in Boston. you can register now!

We're changing the field of #compchem by creating free and open-source software for performing alchemical free energy calculations. Our flagship protocol calculates relative binding free energies of protein-ligand systems. Try it out in your browser: colab.research.google.com/github/OpenF...