We’re excited to introduce Chai Discovery and release Chai-1, a new multi-modal foundation model for molecular structure prediction that performs at the state-of-the-art across a variety of tasks relevant to drug discovery. Chai-1 enables unified prediction of proteins, small molecules, DNA, RNA, covalent modifications, and more. https://lnkd.in/e4xGQw-2 The model is available for free via a web interface, including for commercial applications such as drug discovery. We are also releasing the model weights and inference code as a software library for non-commercial use, as well as a technical report covering the results. We tested Chai-1 across a large number of benchmarks, and found that the model achieves a 77% success rate on the PoseBusters benchmark (vs. 76% by AlphaFold3), as well as an Cα LDDT of 0.849 on the CASP15 protein monomer structure prediction set (vs. 0.801 by ESM3-98B). Unlike many existing structure prediction tools which require multiple sequence alignments (MSAs), Chai-1 can be run in single sequence mode without MSAs while preserving most of its performance. Chai-1 is the first model that’s able to predict multimer structures using single-sequences alone (without MSA search) at AlphaFold-Multimer level quality. In addition to its frontier modeling capabilities directly from sequences, Chai-1 can be prompted with new data, e.g. restraints derived from the lab, which boost performance by double-digit percentage points. Using even a handful of contacts or pocket residues (potentially derived from lab experiments) doubles antibody-antigen structure prediction accuracy. Our team comes from pioneering research and applied AI companies such as OpenAI, AI at Meta, Stripe, and Google. The majority of the team has been Head of AI at leading drug discovery companies, and has collectively helped advance over a dozen drug programs. Chai-1 is the result of a few months of intense work, and yet we are only at the starting line. Our broader mission at Chai Discovery is to transform biology from science into engineering. To that end, we'll be building further AI foundation models that predict and reprogram interactions between biochemical molecules, the fundamental building blocks of life. We’ll have more to share on this soon. We are grateful for the partnership of Dimension, Thrive Capital, OpenAI, Conviction, Neo, Lachy Groom, and Amplify Partners, as well as Greg Brockman, Blake Byers, Fred Ehrsam, Julia Hartz, Kevin Hartz, William Gaybrick, David Frankel, R. Martin Chavez, and many others. Read more about Chai Discovery in Bloomberg: https://lnkd.in/eFn3MzPw
Now this is real genetic and molecular engineering! Congratulations 🎊 מזל טוב. Great name for your company!
Wow this is amazing! Not only is the interface clean and simple to use, but you also made it open source and usable on a single GPU! This is going to make structure prediction much more accessible. I have a PhD in machine learning, genomics, and bioinformatics and I live in the Bay Area. How do I become a part of Chai Discovery?
This is a significant step forward for drug discovery. The potential to streamline and enhance molecular structure prediction will undoubtedly accelerate research and development in the field.
This is truly exciting news! AI is playing an increasingly important role in drug discovery, and the release of Chai-1 is undoubtedly a milestone. Congratulations to the Chai Discovery team on such a significant achievement. We look forward to seeing more great things from you!
Awesome, congrats and excited for your journey ahead! :)
This sounds amazing. I look forward to seeing more progress in the space from Chai!
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Founder, Code.org // Angel investor: Facebook, DropBox, airbnb, Uber, etc // Boards: Axon, MNTN.
4moCongrats!