Source Grounded Generation

Source Grounded Generation refers to AI systems that produce new content—such as presentations, documents, or analyses—based directly on provided source materials. Rather than generating from general training data alone, these systems maintain explicit references to input documents, enabling outputs that are traceable to specific sources and customized to particular user-provided information. This approach addresses a key limitation of standard generative AI: the ability to ground outputs in user-specific context rather than producing generic responses.

How It Works

In source grounded generation, the AI system receives both user instructions and reference materials—typically documents, data, or existing content provided by the user. The system then generates new content while maintaining connections to these sources, either through explicit citations, structural dependencies, or content derived directly from the provided materials. This ensures that outputs remain relevant to the specific information and context the user has supplied, rather than relying on potentially outdated or generalized training data.

Implementation in NotebookLM

Google’s NotebookLM uses Gemini to implement source grounding by allowing users to upload documents, PDFs, or notes that serve as the foundation for content generation. When users request outputs—such as customized presentation designs, summaries, or analyses—Gemini generates content that directly references and builds upon the uploaded materials. This enables the creation of professional, tailored outputs without requiring users to switch to separate design tools like Canva, as the system can produce presentation structures and layouts grounded in the specific source documents provided.

Source Notes