id,date,date_precision,status,transaction_type,round,amount_usd_low,amount_usd_high,lead_or_buyer,co_leads,valuation_usd_low,valuation_usd_high,valuation_basis,valuation_to_run_rate_multiple,multiple_bound,multiple_basis,step_up_vs_prior_closed,price_per_share_usd_low,price_per_share_usd_high,shares,source,source_url,other_source_urls,notes,last_updated
series-b-2025-12-15,2025-12-15,day,Closed round,primary_equity,Series B,130000000,130000000,General Catalyst,With: Oak HC/FT,1300000000,1300000000,Reported (TechCrunch),,,,,,,,"TechCrunch, 15 Dec 2025",https://techcrunch.com/2025/12/15/openai-backed-biotech-firm-chai-discovery-raises-130m-series-b-at-1-3b-valuation/,https://www.chaidiscovery.com/news/series-b,Raised from General Catalyst and Oak HC/FT with Thrive Capital and others participating (Chai Discovery).,2026-11-14
series-a-2025-08-06,2025-08-06,day,Closed round,primary_equity,Series A,70000000,70000000,Menlo Ventures,,,,,,,,,,,,"Chai Discovery, 6 Aug 2025",https://www.chaidiscovery.com/news/series-a-announcement,https://menlovc.com/perspective/revolutionizing-antibody-design-with-ai-why-were-backing-chai-discovery/,"Including Menlo’s Anthology Fund, a partnership with Anthropic.",2026-11-14
seed-2024-09-09,2024-09-09,day,Closed round,primary_equity,Seed,30000000,30000000,Thrive Capital,"With: OpenAI, Dimension Capital",,,,,,,,,,,"Chai Discovery, 9 Sep 2024",https://www.chaidiscovery.com/news/seed-announcement,,,2026-11-14