Genentech uses an iterative AI model where an algorithm predicts an experiment, scientists run it in a wet lab, and the results are fed back to improve the model. This human-in-the-loop system has dramatically increased R&D productivity, cutting molecule design time from a typical 36 months down to just 10.

Moving beyond simulation, Genesis uses a cycle where their AI proposes molecules, a pharma partner synthesizes and tests them in a wet lab, and the experimental outcomes are used as feedback to retrain the generative model. This is akin to RLHF but with physical experiments.

Future progress in biology requires moving beyond static models. The new paradigm involves an AI that reasons over hypotheses, prioritizes experiments, learns from the empirical outcomes, and updates its internal world model. This creates a scalable, closed-loop system for scientific discovery.

The next leap in biotech moves beyond applying AI to existing data. CZI pioneers a model where 'frontier biology' and 'frontier AI' are developed in tandem. Experiments are now designed specifically to generate novel data that will ground and improve future AI models, creating a virtuous feedback loop.

The primary bottleneck for creating powerful foundation models in biology is the lack of clean, large-scale experimental data—orders of magnitude less than what's available for LLMs. This creates a major opportunity for "data foundries" that use robotic labs to generate high-quality biological data at scale.

Earli combines wet lab experiments with AI in a continuous feedback loop. They test massive libraries of synthetic DNA promoter sequences, feed the performance results into a Large Language Model (LLM), which then designs new, potentially more effective sequences. This iterative process rapidly optimizes their cancer-specific genetic switches.

AI models are trained on large lab-generated datasets. The models then simulate biology and make predictions, which are validated back in the lab. This feedback loop accelerates discovery by replacing random experimental "walks" with a more direct computational route, making research faster and more efficient.

Building biologically relevant AI is not a one-off process. It demands a continuous "lab in the loop" system where wet lab experiments generate proprietary data to train models, whose outputs are then physically tested in the lab. This iterative feedback cycle constantly refines the model's predictive accuracy.

A major frustration in genetics is finding 'variants of unknown significance' (VUS)—genetic anomalies with no known effect. AI models promise to simulate the impact of these unique variants on cellular function, moving medicine from reactive diagnostics to truly personalized, predictive health.