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Chai Discovery raises $130M Series B

Chai Discovery: Chai Discovery builds AI foundation models for predicting and designing molecules such as antibodies for drug discovery.

Round
Series B
Amount
$130M
Announced
Valuation
$1.3B
Lead investors
General Catalyst, Oak HC/FT
Also investing
Thrive Capital, OpenAI, Dimension, Menlo Ventures, Lachy Groom, Yosemite, Neo, SV Angel, Emerson Collective, Glade Brook
Headquarters
San Francisco, United States

Source

More: Chai Discovery funding history · rounds in December 2025 · rounds in United States

Other Chai Discovery rounds

  1. Chai Discovery raises $400M Series C, . AI models. Led by Index Ventures, Kleiner Perkins, Sequoia Capital, Dimension. Chai Discovery builds AI foundation models for predicting and designing molecules such as antibodies for drug discovery.
  2. Chai Discovery raises $70M Series A, . AI models. Led by Menlo Ventures. Chai Discovery builds AI foundation models for predicting and designing molecules such as antibodies for drug discovery.
  3. Chai Discovery raises $30M Seed, . AI models. Led by Thrive Capital, OpenAI, Dimension. Chai Discovery builds AI foundation models for predicting and designing molecules such as antibodies for drug discovery.