<ul data-eligibleForWebStory="false">AI infrastructure startup LangChain Inc. has raised $100 million in new funding at a $1.1 billion valuation.LangChain provides tools for developers to create applications powered by large language models through modular components.The company's core offering is a framework allowing developers to chain LLMs, search systems, and other tools for advanced AI behavior.LangChain's previous investors include Benchmark Capital Management Company, Sequoia Capital Operations, and Amplify Partners.