b12 Labs

Chemical Copilot for Pharma and Biotech

Y CombinatorSummer 2025ActiveHealthcareDrug Discovery and DeliveryAI-powered Drug DiscoveryRobotics

What they do

Problem

Early-stage drug discovery is slow and costly because planning synthesis routes and experiments for new molecules is complex and iterative.

Solution

b12 Labs provides an AI chemistry copilot that designs and optimally plans how to synthesize and test new molecules, potentially integrating with robotic labs.

Who it's for

Pharma and biotech medicinal chemists and R&D teams planning and executing early-stage molecule discovery.

Founders

Zlatko Jončev

Founder

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.

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Andres Bran

Founder

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.

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