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b12 Labs

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Chemical Copilot for Pharma and Biotech

Summer 2025Founded 20252 peopleSan Francisco, CA, USA
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About

b12 is an AI copilot that plans how to create and test new molecules for chemists. We're like a GPS for chemistry, helping pharma companies plan the recipes for new drugs, accelerating early-stage drug discovery from years to months. Andres built the first AI agent that can autonomously think and make molecules in a robotic lab, published in Nature Machine Intelligence (750+ citations), and won the best paper award at the NeurIPS AI for Science conference. Zlatko is a 3x National Chemistry Olympiad champion, competed at IChO level, and medicinal chemist who has worked at Roche and leading lab robotics companies. He has an extensive network of hundreds of chemists across Europe. We are publishing a groundbreaking paper in Nature demonstrating our AI's ability to optimally plan chemical recipes. We run paid pilots with big pharma companies showing that our platform planned a set of experiments that achieved full conversion in a single attempt, eliminating the usual 8-12 iteration cycle.

Founders Β· 2

Zlatko Jončev
Zlatko JončevFounder

at b-12 we are developing AI agents for automated workflows in chemistry and pharma R&D, as a way of manifestating chemical super intelligence in physical world. our long-term goal is to create autonomous labs that can perform complex, multistep syntheses with minimal human intervention.

Andres Bran
Andres BranFounder

Before b-12, Andres built the first AI agent to plan and make molecules in a robotic lab (750+ cites in Nature Machine Intelligence, and Best Paper at NeurIPS AI for Science), along with several other works in agents and LLMs for chemistry (1100+ citations). He was an Intern at Max Planck (Math in Science), and PhD at EPFL (AI+Chemistry). Automation is the future of chemistry, but integration and human operability is the hidden demon nobody talks about. We're fixing that at b-12.

HealthcareDrug Discovery and DeliveryAI-powered Drug DiscoveryRobotics

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