Harrison Chase
Not on Prends yetLangChain co-founder and CEO
AI agents · context engineering · agent harnesses
About
Harrison Chase is the co-founder and CEO of LangChain, which began as his open source side project in late 2022 and became a company in early 2023. He now leads work on the LangGraph agent framework and the LangSmith platform for observing, evaluating and deploying agents, and speaks often about long-running agents and the harnesses around models.
Known for
- Started LangChain as an open source side project in late 2022
- Co-founded LangChain the company with Ankush Gola in early 2023
- Leads a company that built LangGraph, a framework and runtime for controllable agent systems
- Launched LangSmith, a platform for agent observability, evaluation and deployment
- Led LangChain to a reported 125 million dollar raise at a 1.25 billion dollar valuation
Key points
- Argues that orchestration is a small share of the work in LLM apps, and that prompt and data engineering plus debugging visibility are the harder parts
- Argues that production agents succeed with custom, domain-specific cognitive architectures rather than very general, unconstrained designs
- Argues that harness and context engineering matter as much as model quality for long-horizon agents, with traces serving as the key record of agent behavior
Recent appearances
References hosts use to judge fit- LangChain CEO Harrison Chase on the infrastructure bet he got wrongNavigators
- Harrison Chase of LangChain on Deep Agents, LangSmith, and Earning Trust | NVIDIA AI Podcast Ep. 297NVIDIA AI Podcast
- Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChainThe MAD Podcast with Matt Turck
- Context Engineering Our Way to Long-Horizon Agents: LangChain's Harrison ChaseTraining Data (Sequoia Capital)
- AI Agents Are Here: What They Can Already Do, and What's NextThe Generalist
Researched from public sources, checked 2026-10-08. This person has not claimed the profile yet.