LangChain CEO: our gateway shipped a year too late, sub-agents rarely work as expected
Hacubu · x · 2026-09-17
In a deep interview, LangChain co-founder and CEO Harrison Chase revisits the company's journey from a 2022 side project through LangSmith and LangGraph, admits the gateway product shipped about a year too late and still costs them, and explains why sub-agents rarely work the way people expect.
Key points:
- Code mode: agents writing code beats human-style tool calling; should the agent run inside the sandbox or call it as a tool?
- Agent identity: whose credentials an agent runs with remains an underrated problem.
- Internal practice: LangChain now runs its own hiring, content, and coding work through internal agents in Slack.
- "I use agents for everything" is a red flag in interviews, Chase says.
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