The ATOM Project, short for American Truly Open Models, is an initiative advocating investment in leading, openly available AI models developed in the United States. It aims to reinvigorate American AI research and strengthen the country’s position in a field where the project says U.S. open models are losing ground in performance and adoption. ATOM focuses on open language models, which may provide downloadable model weights, training code, and, in some cases, training data for researchers and developers to use and adapt.

The project argues that access to these models and resources supports research, enables new AI products, and broadens participation beyond closed laboratories. Its central recommendation is to sustain multiple U.S. research labs focused on training open models with more than 10,000 advanced GPUs. ATOM also invites individuals to sign a public statement of support and offers email updates. The site presents the initiative’s rationale, data and methods, and a list of notable supporters from AI research, technology, academia, and investment.