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Chai Discovery

San Francisco, US · founded 2021 · ~20 employees · Software Publishers · Crunchbase rank #682 · chai-research.com

Chai Discovery develops artificial intelligence models and software for protein engineering and molecular design. Its platform enables researchers to design antibodies, miniproteins, and other biomolecules from target structures or sequences while supporting different antibody formats, framework sequences, epitope selection, and molecular design criteria. The company’s technology is used to predict molecular interactions, generate de novo protein designs, and support therapeutic research by reducing experimental screening and accelerating candidate evaluation. Chai Discovery also provides controlled access to its AI models for commercial and academic research through a web-based platform.

Funding

1
Every round, secondary, debt facility or acquisition involving Chai Discovery that AI Lounge tracks, newest first. Latest: Series C on Jul 15, 2026.

Timeline · 2

Jul 15, 2026
Round
Series C · $400M at $3.8B · Index Ventures
Jul 15, 2026
Deal

In the news

1
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