Fin x Langchain meetup: A Fireside on Building Agentic AI

“How do you build AI agents that actually work — not just in demos, but in production?”

At our Fin x LangChain meetup in Amsterdam, Fergal Reid, Chief AI Officer, Intercom, building Fin and Marco Perrini, Deployed Engineer, LangChain, shared how Fin evolved from hand-coded experiments to a complex, multi-model system powered by LangGraph.

They discussed:

How Fin moved from GPT-4 prototypes to custom fine-tuned models

Building real evaluation and A/B testing at scale

Voice agents, Procedures, and what it takes to make AI reliable

Why “build it first, optimize later” works for fast-moving teams

Hear how Intercom and LangChain are shaping the next generation of trustworthy, production-grade AI agents.

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