# Chai Discovery

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/chai-discovery

- Industry: Healthcare IT
- Headquarters: San Francisco, US
- Website: www.chaidiscovery.com/
- Total disclosed funding: $620M
- Latest round: Series C (Jul 14, 2026)
- Investors on record: 25

## About

Based in California, US, and founded in 2024 by co-founders Joshua Meier (CEO) and Jack Dent, Chai Discovery, Inc. Chai Discovery, Inc. operates as a provider of an AI-based platform that delivers advanced molecular structure prediction models to research institutions and pharmaceutical companies. In July 2026, Chai Discovery, Inc. raised USD 400 million in series C funding co-led by Index Ventures, Kleiner Perkins, Sequoia and Dimension Management, with participation from Bain Capital, Battery Ventures, Baillie Gifford, BDT & MSD Partners, Sapphire Ventures, Avra, Thrive Capital, OpenAI, Oak HC/FT, Menlo Ventures, General Catalyst Partners, Glade Brook Capital Partners, Avenir Growth Capital and Yosemite Management. The company provides an artificial intelligence platform that offers advanced molecular structure prediction to biotech firms. The platform services include prediction of proteins, small molecules, DNA, RNA, and covalent modifications. Moreover, the firm offers solutions such as the Chai-1 model for both commercial and non-commercial use, technical reports, model weights, and inference code for research purposes. Additionally, the firm also provides web-based access and GitHub repository support for the Chai-1 model. 

The company will use the July 2026 funding to support the further development of its AI-Driven molecular design.

## Funding rounds

- Series C, Jul 14, 2026, $400M — Battery Ventures, Index Ventures, Kleiner Perkins, Menlo Ventures, Bain Capital, Sequoia, General Catalyst Partners, Sapphire Ventures, Thrive Capital, Glade Brook Capital Partners, Oak HC/FT, BDT & MSD Partners, Avenir Growth Capital, Baillie Gifford, OpenAI, Dimension Management, Yosemite Management, Avra
- Series B, Dec 15, 2025, $130M — Menlo Ventures, General Catalyst Partners, SV Angel, Thrive Capital, Glade Brook Capital Partners, Oak HC/FT, OpenAI, Dimension, Yosemite Management, Emerson Collective
- Series A, Aug 6, 2025, $70M — Menlo Ventures, Dimension Capital Management, SV Angel, DST Global, DCVC, Thrive, Avenir Growth Capital, OpenAI, Yosemite Management
- Seed, Sep 9, 2024, $20M — Dimension Capital Management, Thrive, OpenAI

## Investors

- Dimension Capital Management (https://capitalatlas.ai/funds/dimension-capital-management) — Seed, Series A
- Thrive (https://capitalatlas.ai/funds/thrive) — Seed, Series A
- OpenAI — Seed, Series A, Series B, Series C
- Menlo Ventures (https://capitalatlas.ai/funds/menlo-ventures) — Series A, Series B, Series C
- SV Angel (https://capitalatlas.ai/funds/sv-angel) — Series A, Series B
- DST Global (https://capitalatlas.ai/funds/dst-global) — Series A
- DCVC (https://capitalatlas.ai/funds/dcvc) — Series A
- Avenir Growth Capital (https://capitalatlas.ai/funds/avenir-growth-capital) — Series A, Series C
- Yosemite Management (https://capitalatlas.ai/funds/yosemite-management) — Series A, Series B, Series C
- General Catalyst Partners (https://capitalatlas.ai/funds/general-catalyst-partners) — Series B, Series C
- Thrive Capital (https://capitalatlas.ai/funds/thrive-capital) — Series B, Series C
- Glade Brook Capital Partners (https://capitalatlas.ai/funds/glade-brook-capital-partners) — Series B, Series C
- Oak HC/FT (https://capitalatlas.ai/funds/oak-hc-ft) — Series B, Series C
- Dimension — Series B
- Emerson Collective — Series B
- Battery Ventures (https://capitalatlas.ai/funds/battery-ventures) — Series C
- Index Ventures (https://capitalatlas.ai/funds/index-ventures) — Series C
- Kleiner Perkins (https://capitalatlas.ai/funds/kleiner-perkins) — Series C
- Bain Capital (https://capitalatlas.ai/funds/bain-capital) — Series C
- Sequoia (https://capitalatlas.ai/funds/sequoia) — Series C
- Sapphire Ventures (https://capitalatlas.ai/funds/sapphire-ventures) — Series C
- BDT & MSD Partners (https://capitalatlas.ai/funds/bdt-msd-partners) — Series C
- Baillie Gifford (https://capitalatlas.ai/funds/baillie-gifford) — Series C
- Dimension Management (https://capitalatlas.ai/funds/dimension-management) — Series C
- Avra (https://capitalatlas.ai/funds/avra) — Series C