LangChain vs Poolside AI

By valuation, Poolside AI is the larger company at $12B versus $1.3B — a 9.6x difference. Size can also be measured by team: LangChain employs 60 people while Poolside AI has 300 employees.

Poolside AI has raised more in total funding at $626M, compared to LangChain's $260M — a gap of $366M. Combined, the two companies have completed 5 known funding rounds.

Poolside AI leads with an Awaira Score of 80/100, while LangChain sits at 78/100. That 2-point gap reflects real differences in funding, scale, and traction — it's not a vanity metric.

LangChain was founded by Harrison Chase in 2022. Poolside AI was founded by Jason Warner in 2023. Visit each company's profile on Awaira for a full founder biography.

LangChain: LangChain is an open-source framework for developing applications powered by large language models (LLMs). Founded in 2022, the company provides a software library that abstracts away the complexity of integrating LLMs into production applications. The core product enables developers to chain together multiple LLM calls and external data sources, reducing engineering overhead for tasks like document analysis, question-answering systems, and autonomous agents. LangChain's approach centers on modularity and composability, allowing developers to build custom workflows without managing low-level API interactions. The framework supports multiple LLM providers including OpenAI, Anthropic, and open-source models, making it vendor-agnostic. The platform has gained significant adoption within enterprise development teams and startups building AI-powered features. LangChain went through a Series A funding round, reaching a valuation of $200 million with total funding of $35 million. The company competes in the rapidly growing AI infrastructure space alongside similar orchestration tools and LLM application frameworks. Notable use cases span document retrieval systems, chatbot development, and data analysis applications. The company's growth trajectory reflects strong developer adoption and increasing enterprise demand for LLM application development tools. LangChain operates in the AI developer tools category, which remains highly competitive yet nascent. LangChain's open-source-first strategy combined with enterprise-grade tooling positions it as a foundational infrastructure layer for LLM application development. Poolside AI: Poolside AI is an artificial intelligence development tools company founded in 2023 and headquartered in the United States. The company has achieved a valuation of $12.0 billion following Series B funding of $626 million, reflecting significant investor confidence in its market opportunity. Poolside AI develops software tools designed to enhance developer productivity and streamline artificial intelligence development workflows. The company's core focus centers on creating intelligent development environments and code assistance platforms that utilize advanced language models to support engineers building AI systems. Its technology addresses the growing demand for developer-centric tools within the rapidly expanding AI infrastructure sector. The company operates in a competitive landscape alongside established players and emerging startups offering AI development platforms, code generation tools, and developer productivity software. Poolside AI's positioning emphasizes practical solutions for professional developers and engineering teams working on AI projects. The company's rapid valuation growth and substantial funding demonstrate strong market demand for specialized AI development tooling. Its Series B stage indicates active scaling operations and expansion of product capabilities. Growth trajectory appears accelerated given the valuation achieved within approximately one year of founding, reflecting broader industry momentum in AI development infrastructure and tools. Specific customer details and detailed product specifications remain not disclosed publicly. Poolside AI achieved unicorn status within its first year of operation, positioning itself as a significant player in the AI developer tools market.

LangChain got there first, launching in 2022 — that's 1 year of extra runway. Poolside AI didn't arrive until 2023. In AI, that kind of head start means more training data, deeper customer relationships, and a bigger talent moat.

LangChain has about 60 employees; Poolside AI has about 300. A bigger team usually means more revenue or heavier VC backing, but in AI, small teams can build at massive scale.

Yes — they're direct rivals. Both LangChain and Poolside AI compete in AI Dev Tools, targeting many of the same buyers. If you're evaluating one, you should be looking at the other.