Which pharmaceutical companies use Chai?

Chai has announced collaborations and licensing agreements with major pharmaceutical companies including Pfizer, Novartis, Eli Lilly, and argenx.

What kind of molecules does Chai design?

Chai specializes in designing complex biomolecules, particularly drug-like antibodies with atomic precision, to target specific biochemical interactions.

How does Chai's AI approach work technically?

Chai's models are trained to learn foundational principles of biochemical structure and interaction, allowing them to generate novel molecular designs from scratch based on desired properties.

Is there a public API or free trial for Chai?

Based on the homepage, access to Chai's platform appears to be through enterprise partnerships and collaborations; there is no indication of a public API or self-serve trial model.

Directory/Search/AI for Science/Chai Discovery

Chai Discovery

Chai Discovery builds a computer-aided design suite for molecules. Its AI models learn the foundational principles of biochemical structure and interaction, enabling scientists and pharmaceutical companies to design new medicines and antibodies with atomic precision directly on a computer. The platform is used by leading life science organizations to accelerate drug discovery and explore targets previously considered unreachable.

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Added on

Sep 22, 2026

AI Drug DiscoveryMolecular DesignAntibody EngineeringEnterprise Platform

Product information

Everything worth knowing about Chai Discovery

The complete picture — from everyday features to the technical detail builders and IT folks dig for.

Core features

What it actually does

AI-Driven Molecular Design

Computer-aided design suite for engineering molecules, enabling scientists to design new medicines on the computer.

Foundation Models for Biochemistry

Models learn the underlying principles of biological structure and interaction to design new molecules from scratch.

Targets Other Methods Can't Reach

Enables leading life sciences companies to pursue drug targets that were previously inaccessible.

Accelerated Drug Discovery Programs

Powers drug discovery programs at leading pharmaceutical companies, moving faster from research to candidate.

Technical capabilities

Atomic Precision Antibody Design

Develops drug-like antibodies against challenging targets with atomic precision.

Proprietary AI Platform

Integrated software platform for AI-driven discovery, licensed to enterprise pharmaceutical partners.

Must watch videos

AI Drug-Discovery Firm Chai Raises $130 Million Series B

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Tutorial6:50

AI Drug-Discovery Firm Chai Raises $130 Million Series B

Chai Discovery, an AI drug-discovery startup, raises a $130 million Series B at a $1.3 billion valuation, with plans to build a “computer-aided design suite” for molecules. Chai Discovery co-founder Joshua Meier and investor Elena Viboch, managing director at General Catalyst, join Caroline Hyde on “Bloomberg Tech.” -------- Like this video? Subscribe to Bloomberg Technology on YouTube: https://www.youtube.com/channel/UCrM7B7SL_g1edFOnmj-SDKg Watch the latest full episodes of "Bloomberg Technology" with Caroline Hyde and Ed Ludlow here: https://www.youtube.com/playlist?list=PLfAX25ZLrPGTygCwn55voYZ_LYyKjxokJ Get the latest in tech from Silicon Valley and around the world here: https://www.bloomberg.com/technology Connect with us on... X: https://twitter.com/technology Facebook: https://www.facebook.com/BloombergTechnology Instagram: https://www.instagram.com/bloombergbusiness/ Follow Ed Ludlow on X here: https://twitter.com/EdLudlow Follow Caroline Hyde on X here: https://twitter.com/CarolineHydeTV Listen to the daily Bloomberg Technology podcast here: https://www.bloomberg.com/podcasts/series/bloomberg-technology More from Bloomberg Business Connect with us on... X: https://twitter.com/business Facebook: https://www.facebook.com/bloombergbusiness Instagram: https://www.instagram.com/bloombergbusiness/ LinkedIn: https://www.linkedin.com/company/bloomberg-news/ TikTok: https://www.tiktok.com/@bloombergbusiness

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Tutorial2:30

Announcing Chai-2

Chai-2 is a breakthrough series of models that achieve unprecedented double-digit success rates in discovering de novo antibodies from scratch using computational methods. Learn more: https://www.chaidiscovery.com/news/introducing-chai-2

Drug-like antibody design against challenging targets with atomic precision with Chai-2

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Tutorial3:48

Drug-like antibody design against challenging targets with atomic precision with Chai-2

Today, we’re releasing new data showing that Chai-2 can design antibodies against challenging targets with atomic precision. In June, we introduced Chai-2, showing it could design antibodies zero-shot in a 24-well plate.

Who uses it

Real use cases, no hype

Antibody Therapeutic Design

Design drug-like antibodies against challenging disease targets with atomic-level precision.

Novel Target Exploration

Pursue biological targets previously considered 'undruggable' by other computational or experimental methods.

Pharmaceutical R&D Acceleration

Speed up the early-stage discovery pipeline for large pharma companies.

Molecule Engineering Suite

Use AI-powered computer-aided design for building and optimizing new molecular entities.

Immunology Breakthroughs

Advance research in immunology and immunology-related drug discovery programs.

What's great

Proven platform with major pharma partnerships (Pfizer, Novartis, Lilly).
Focus on difficult, novel targets other methods can't reach.
Massive $400M Series C for R&D and scaling.

Technical strengths

Specializes in antibody design with atomic precision.
Core models learn foundational biochemical structure/interaction principles.
End-to-end computer-aided design suite for molecules.

Where it falls short

Not a general-purpose tool; highly specialized for drug discovery.
Access appears to be through enterprise partnerships, not open self-serve.
Domain complexity requires significant in-house computational biology expertise.

Technical limitations

Technical details on model architectures (e.g., Chai-2-Mab specifics) are not public.
Evaluation is likely tied to specific, proprietary benchmarking suites.
Integration with standard MLops pipelines is undefined.

For technical folks

The deep-dive specs

FAQ

Includes technical Q&A

Chai Discovery is a platform that builds AI models to learn the principles of biological structure, enabling scientists to design new molecules and medicines on a computer.

Traffic Insights

Monthly Visits

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October 2026

Growth Rate

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Dominance

in Search

Top Country

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Top Countries Breakdown

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Growth Trend

Stable

Traffic has remained stable.

Pricing overview

Paid Pricing

Chai Discovery Pricing

Chai Discovery uses a paid pricing structure. Real-time rates, custom enterprise quotas, and plan details are managed directly on their official platform.

Check Pricing on Chai Discovery

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