About
William Bryk studied computer science and physics at Harvard, where he conducted machine learning research. He previously worked as a software engineer at machine learning startup Cresta before founding Exa.
Will Bryk @williambryk
Interned with SpaceX 10 years ago, and now full circle https://t.co/7cx9JIrVIw
Jul 24, 2026 Β· β₯ 116 Β· β 1
Will Bryk @williambryk
Cool independent result finding that simply adding Exa search to Fable, Sol, Grok, or Gemini increases accuracy over their native search. Particularly on finance tasks, which makes sense because finance is retrieval heavy. It took 5 years to build a search engine that passes https://t.co/YAlfDHCJ7w
Jul 23, 2026 Β· β₯ 110 Β· β 10
Will Bryk @williambryk
Today's release gives any AI agent SoTA retrieval over 300m+ research papers. Traditional tools like Google Scholar have very low recall -- you'll always have FOMO about papers you missed. Exa Publications fixes that. You or your agent can now be comprehensive about things https://t.co/GPHTuEtOt2
Jul 22, 2026 Β· β₯ 251 Β· β 26
co-founder/CEO at ExaYC S21
Intro paths
William went through Y Combinator (Summer 2021) β any YC alum in your network can reach them through the YC community.
Their group partner at YC was Nicolas Dessaigne, General Partner at Y Combinator β the partner who ran Exa's batch and knows the company first-hand. YC profile β
In turn, William can intro founders to Exa's investors below.
Exa's investors Β· 12
Co-founders at Exa
