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Chai Discovery

Chai Discovery, Inc.
AI LabStartup
ChaiChai-Discovery

American AI drug discovery startup from San Francisco, founded 2024 by Joshua Meier (formerly Meta AI/FAIR, co-author of the ESM protein LM family). Building foundation models for biochemistry (Chai-1/2/3). Clients: Eli Lilly, Pfizer, Novartis. Series C $400M @ $3.8B valuation (July 2026).

Country of originUnited States
HQSan FranciscoUnited States
www.chaidiscovery.comLinkedInGitHub
01 · About

Chai Discovery

San Francisco, United States

Founders

  • Joshua Meier

    Co-founder & CEO (formerly Meta AI/FAIR - co-author of the ESM model family; former Chief AI Officer at Absci; Harvard graduate)

  • Jack Dent

    Co-founder

  • Matthew McPartlon

    Co-founder

  • Jacques Boitreaud

    Co-founder

02 · What they do

Domain of activity

3 areas · 5 technologies · 3 industries
What they do3Areas
  • Language models
  • Multimodal models
  • Simulation & training environments
How they do it5Technologies
  • Foundation Models
  • Generative AI
  • Multimodal AI
  • LLM
  • Fine-tuning
Who for3Industries
  • Pharma & biotech
  • Healthcare
  • Research & science
03 · Geography

Global presence

HQ San Francisco · 1 offices · 3 regions
USANorth AmericaGlobal
04 · Metrics

Scale & funding

growthdevelopment stage
Privatenot listed
operationalstatus
07 · Classification

Profile & metadata

4 classification · 3 external links

Classification

  • Statusoperational
  • Development stagegrowth
  • Listed onNoprivate
  • Organization typeAI Lab+ Startup

External links

08 · Related content

Articles

1 articles
Ex-OpenAI researcher raises $200M for AI drug discovery at $2B valuation
News16 July 2026

Ex-OpenAI researcher raises $200M for AI drug discovery at $2B valuation

Miles Wang, an OpenAI researcher focused on AI-accelerated biological discovery, is leaving to launch a drug discovery startup at a $2B valuation. On the same day, Chai Discovery announced a $400M round at a $3.8B valuation.