Daniel Gross was born in 1991 in Jerusalem. He attended a mechina before enlisting in the Israel Defense Forces.
In 2010 he and Robby Walker started Greplin, a search tool for personal data. It was renamed Cue in 2012. Apple acquired Cue in 2013, and Gross became an Apple director focused on machine learning.
He became a Y Combinator partner in 2017, with a focus on AI. In August 2018 he created Pioneer, an early-stage remote accelerator and fund. He also co-founded the venture firm NFDG with Nat Friedman, and in 2024 he led a founding round in Perplexity AI.
In June 2024 he co-founded Safe Superintelligence Inc. with Ilya Sutskever and Daniel Levy. He left in July 2025 to join Meta Superintelligence Labs.