Chai Discovery

Company facts

• Founded

  2024

  ReportedSource for founded (opens in new tab)

• Headquarters

  United States (San Francisco, CA)

  ConfirmedSource for headquarters (opens in new tab)

• Total funding

  $630M

  ConfirmedSource for total funding (opens in new tab)

Latest funding round

Drug discovery partners

6 pharma. Pharma here means a company with approved products and roughly $1B or more in annual revenue.

• GSK Pharma

  Collaboration, Oct 9, 2026

  Terms not disclosed

  ConfirmedSource for GSK (opens in new tab)

• Bristol Myers Squibb Pharma

  Antibody discovery collaboration, Aug 20, 2026

  Terms not disclosed

  ConfirmedSource for Bristol Myers Squibb (opens in new tab)

• argenx Pharma

  Antibody discovery collaboration, Jul 15, 2026

  Terms not disclosed

  ConfirmedSource for argenx (opens in new tab)

• Novartis Pharma

  Expanded collaboration, Jul 13, 2026

  Terms not disclosed

  ConfirmedSource for Novartis (opens in new tab)

Big tech ties

Not counted as pharma partners.

• OpenAI

  Investor (Series C), Jul 20, 2026

  ConfirmedSource for OpenAI (opens in new tab)

Recent news

• Oct 9, 2026

  Collaboration with GSK after GSK wet-lab evaluation found binders to all tested targets

  ConfirmedSource (opens in new tab)

• Aug 20, 2026

  Collaboration with Bristol Myers Squibb on AI antibody discovery

  ConfirmedSource (opens in new tab)

• Jul 20, 2026

  $400M Series C led by Index Ventures; OpenAI among investors

  ConfirmedSource (opens in new tab)

• Jul 15, 2026

  Collaboration with argenx on antibody discovery (third agreement that week)

  ConfirmedSource (opens in new tab)

• Jul 13, 2026

  Expanded collaboration with Novartis after a year-long technical engagement

  ConfirmedSource (opens in new tab)