LangChain cofounder: 200M+ monthly OSS downloads powered the journey to Series C
BraceSproul · x · 2026-11-14
LangChain cofounder Sydney Runkle reflects on the company's Series C: the open source project has been the foundation since seed, now with 200M+ monthly downloads. She notes the builder community taught the team the hardest part of building agents—non-determinism unlike traditional software—which motivated LangSmith for observability, evals, and deployment.
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