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September 17, 2026

Inductive Launches Beacon-2, Making Human Dose Computable for Chemists and AI agents Across Biopharma

Chemists can now estimate which compounds will have the best human dose before making them in the lab.

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Chemists can now estimate which compounds will have the best human dose before making them in the lab.

NEW YORK—September 17, 2026 Inductive launched Beacon-2 today, a system that predicts the efficacious human dose of a small molecule directly from its chemical structure.

Dose is the number that decides whether a compound can become a drug. It accounts for both how potent a molecule is and what the body does to it. A drug that works at a lower dose also carries less risk of off-target toxicity.

Beacon-2 predicts the properties that determine dose (absorption, distribution, metabolism, excretion, and toxicity) and estimates potency, then combines them through mechanistic models of pharmacokinetics. The ADMET models underneath it have won three consecutive OpenADMET blind challenges, beating more than 750 competitors from leading AI and pharma companies. 

A technical post published today covers how Beacon-2 works and validates its projections across 20 real-world drug programs and 325 publicly available compounds from the ExpansionRx OpenADMET competition.

To test how Beacon-2 impacts agentic design workflows, Inductive gave its medicinal chemistry agent Indy a recently disclosed SARS-CoV-2 compound for optimization. Over 5 autonomous design cycles, Indy improved predicted human dose by 17x, which can be the difference between a drug program that gets killed and one that makes it to clinical trials.

"Chemists have always had to balance a dozen separate properties against each other to decide whether a compound is worth making," said Josh Haimson, co-founder and CEO of Inductive. "Dose is what those properties all add up to. Computing it from structure changes which compounds a team decides to make and helps them identify the highest quality compounds faster."

Beacon-2 is available to partners through Compass, where it is already running on live drug discovery programs.

About Inductive

Inductive is a chemical intelligence organization that embeds into drug programs and deploys frontier AI across experiment design and physical execution. Their chemical intelligence models, lab robotics, and expert chemists reason together about which experiments are scientifically valuable and which can be executed in the physical world, improving with every experiment. Inductive's models have placed first in three consecutive blind AI drug discovery benchmarks and support over 100 discovery programs with leading biopharma partners. For more information, please visit www.inductive.bio.

  • QC analytical reports (1H/13C/19F/2D NMR, chiral SFC)
  • Propose, visualize, and triage forward and retrosyntheses
  • Monitor the synthesis queue and flag stalled targets
  • QC assay data as it lands and flag suspicious results
  • Prioritize repeats and nominate compounds for downstream assays
  • Analyze SAR and identify data gaps
  • Evaluate IVIVC and suggest diagnostic experiments
  • Design, enumerate, and triage analogs
  • Launch and analyze physics-based workflows like docking and FEP
  • Project human PK and efficacious dose
  • Answer questions about a program’s history (what was learned and when)
  • Track team progress against the target candidate profile
  • Get new scientists up to speed on a program
  • Make meeting-ready slides and figures

Prompt: I’m attaching two files with activity data, one with new data from today and one with historical data. Can you look through the new data and identify any QC issues that I should be aware of? Create a csv where every compound + assay run pair is labeled with any relevant issues.

Prompt: Do a nitrogen walk around the core of this molecule: O=C(NCC1=CC=C(C)C(F)=C1)C2=CC=C3C=C(N4[C@H](C)CCCC4)C=CN32

Prompt: Do an OH walk around this whole molecule: O=C(NCC1=CC=C(C)C(F)=C1)C2=CC=C3C=C(N4[C@H](C)CCCC4)C=CN32

Prompt: Replace the core of this molecule with this set of 5,6-ring systems (file attached): O=C(NCC1=CC=C(C)C(F)=C1)C2=CC=C3C=C(N4[C@H](C)CCCC4)C=CN32

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