Chai Discovery launches, open-sources Chai-1, lands deals with seven big pharma firms

chaitjo · x · 2026-11-06

Zavain Dar announces the launch of Chai Discovery and open-sources Chai-1, a frontier model for biomolecular interactions, with funding co-led by Thrive and OpenAI alongside Dimension Capital. In just one year the startup has signed deals with Lilly, Pfizer, BMS, Argenx, GSK, Novartis and Roche — what he calls biopharma business physics being broken by breakthrough AI.

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