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LangChain and Agentic AI Engineering with Erick Friis, Sonic AI
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LangChain and Agentic AI Engineering with Erick Friis
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Feb 11, 2025
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41:08
Interview
LangChain and Agentic AI Engineering with Erick Friis
Erick Friis
(Founding Engineer, LangChain, guest)
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Executive Summary
LangChain's focus has evolved from simple LLM chaining to orchestrating complex, stateful AI agents using its LangGraph framework, which models agents as state machines.
A key challenge in building reliable AI agents is the performance degradation of LLMs when given too many tools; a best practice is to limit an agent to approximately five tools at any given step.
Reliability, stemming from the non-deterministic nature of LLMs, is the biggest hurdle to productionizing AI applications, necessitating robust evaluation frameworks beyond simple 'vibe checks'.
Tool-calling is the most critical LLM feature for developers, but its performance is inconsistent across different models and even different hosting providers for the same open-source model.
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