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tech 21 June 2026

Building Reliable Agentic AI Systems

Discover how Bayer and Thoughtworks transformed pharmaceutical research with PRINCE, an agentic AI platform that enhances data accessibility and research efficiency.

Article inspired by the original source
Building reliable agentic AI systems ↗ martinfowler.com

Introduction

In a world where AI is advancing at a breakneck speed, building reliable agentic AI systems has become crucial for companies looking to stay competitive. The example of the PRINCE platform, developed by Bayer in collaboration with Thoughtworks, illustrates how AI can revolutionize the pharmaceutical sector by improving data accessibility and research efficiency.

The Challenge: Navigating the Preclinical Data Maze

The pharmaceutical sector faces a significant challenge: the immense volume of data generated by safety and toxicology studies. These data need to be accessible and usable for researchers, which is not always the case with traditional keyword-based search methods.

The Solution: PRINCE - An Evolutionary Platform

PRINCE is a cloud-based platform that uses Retrieval-Augmented Generation (RAG) and multi-task agents to transform how data are integrated and used. PRINCE enables complex questions to be answered and regulatory documents to be drafted through specialized agents that clarify user intent, reflect on the process, validate data, and synthesize answers.

System Architecture: Engineering a Reliable Agentic RAG System

Clarifying User Intent

One of the first challenges in an agentic system is understanding what the user really wants. This requires an agent capable of asking the right questions and reformulating queries for better understanding.

Think & Plan: Process Reflection

Once the intent is clarified, the system must think about how to process the request. This involves evaluating available data and planning the necessary steps to arrive at a precise and useful conclusion.

The Researcher Agent

The researcher agent plays a crucial role in accessing databases and retrieving relevant information. This agent must be capable of navigating through complex and often poorly structured data.

The Reflection Agent: Data Validation and Sufficiency

Data validation is essential to ensure that the information used is reliable and sufficient to draw conclusions.

The Writer Agent: Answer Synthesis and Formatting

Finally, the writer agent compiles the information and presents it in a coherent and readable format, tailored to the user's needs.

Building Trust in a Production LLM System

Transparency and explainability are at the heart of trust in AI systems. PRINCE incorporates mechanisms to ensure that each step of the decision-making process is traceable and understandable for users.

Evaluation and Monitoring

To maintain system reliability, continuous evaluation and monitoring are necessary. This includes error handling and recovery to prevent service interruptions.

Enhancing Data Quality

Techniques such as named entity recognition and annotation improve data quality by providing more precise and actionable information.

Conclusion

The development of agentic AI systems like PRINCE demonstrates the transformative potential of AI in the pharmaceutical sector. By integrating orchestration, recovery, and observability, Bayer and Thoughtworks have created a robust solution that significantly improves research efficiency.

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Agentic AI RAG Pharmaceutical AI Data Accessibility AI Transparency
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