https://rgmarelli.github.io/Notes on AI systems, agents, and the occasional detour. 2026-08-07T19:00:46-03:00 Guido Marelli https://rgmarelli.github.io/ Jekyll © 2026 Guido Marelli /assets/img/favicons/favicon.ico /assets/img/favicons/favicon-96x96.png 2026-08-06T00:00:00-03:00 2026-08-06T00:00:00-03:00 https://rgmarelli.github.io/posts/grounded-ai-pipeline/ Guido Marelli

I wanted one guarantee: every factual sentence the agent produces should be traceable to evidence it actually retrieved, not something the model made up because it sounded plausible. The requirement seemed straightforward, until I tried to make a model with fewer than 3 billion parameters do both jobs at once: answer the question, and correctly cite the evidence behind it. It couldn’t. That fai...