Chan Zuckerberg Initiative's Tabula Sapiens Maps One Million Cells and Hundreds of Cell Types

The Chan Zuckerberg Biohub's Tabula Sapiens project has analysed about one million cells and identified 600 to 700 cell types, roughly twice the number found in textbooks, and it has since evolved into CELLxGENE Census, described as the largest open repository of single-cell data. Speakers in a Biohub discussion framed virtual cell models, protein language models and single-cell foundation models as tools to accelerate life science research. The talk outlined CZI's investment philosophy in AI and biology without releasing model weights or benchmarks.