LangChain, Inc.
Building the leading platform for agent engineering to make AI agents as reliable as databases and APIs. Provides open source frameworks (LangChain and LangGraph) for speed and granular control, plus commercial platform (LangSmith) for observability, evaluation, and deployment to help AI teams create dependable LLM systems in production.
Founding Story
LangChain began as an open source side project by Harrison Chase in October 2022, who released the first version of the Python package on October 24, 2022. Chase quickly partnered with Ankush Gola, a former colleague from Robust Intelligence, to expand the framework. Within six months, the project gained tremendous traction with 20,000+ GitHub stars, 10,000+ active Discord members, and 350+ contributors. The project was officially incorporated as LangChain, Inc. in January 2023 with Chase as CEO and Gola as CTO. The company evolved from a simple library to a comprehensive platform addressing the full lifecycle of building, testing, deploying, and monitoring AI agents and LLM applications.
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Leadership
Founders
Harrison Chase
Harvard graduate in statistics and computer science (2017). Previously served as Machine Learning Engineer at Robust Intelligence (October 2019 - January 2023) and Machine Learning Engineer at Kensho Technologies (July 2017 - October 2019).
Ankush Gola
Co-founder with extensive software engineering background. Previously served as Senior Software Engineer at Facebook (August 2015 - November 2019), Software Engineer/Tech Lead at Robust Intelligence (December 2019 - December 2020), and Head of Engineering at Unfold (December 2021 - October 2022). Holds B.S.E. degree.
Executive Team
Harrison Chase
Co-Founder and CEO
Harvard graduate in statistics and computer science. Former Machine Learning Engineer at Robust Intelligence and Kensho Technologies.
Ankush Gola
Co-Founder and CTO
Former Senior Software Engineer at Facebook and engineering leader at Robust Intelligence and Unfold.
Business Model
Revenue Model
Subscription-based SaaS with usage-based pricing. Revenue streams include: (1) Seat-based subscriptions for LangSmith platform access ($39/seat/month for Plus tier, custom for Enterprise), (2) Usage-based charges for traces (base traces $2.50 per 1k, extended traces $5.00 per 1k), (3) LangSmith Deployment charges based on deployment runs and uptime, (4) Agent Builder runs ($0.05 per run after free tier), (5) Enterprise licenses with custom pricing for self-hosted and hybrid deployments. Open source frameworks (LangChain and LangGraph) are free, with monetization focused on the commercial LangSmith platform.
Pricing Tiers
Maximum 1 seat, 5,000 base traces/month included, pay-as-you-go thereafter. Includes tracing, monitoring, online/offline evals, dataset collection, annotation queue, Prompt Hub, bulk data export. 1 Agent Builder agent, 50 Agent Builder runs/month. Cloud hosting only.
Unlimited seats, 10,000 base traces/month included, pay-as-you-go thereafter. Includes all Developer features plus LangSmith Deployment with 1 free Dev deployment ($0.005/deployment run for additional, $0.0007/min uptime for Dev, $0.0036/min for Production). Unlimited Agent Builder agents, 500 Agent Builder runs/month included ($0.05 per additional run). Cloud hosting, monthly self-serve billing.
Custom pricing with all Plus features. Includes Cloud, Hybrid, or Self-Hosted deployment options, custom SSO, advanced role-based access control, team trainings, architectural guidance, access to deployed engineers, SLA, custom terms, infosec review. Annual invoice, custom trace allocations and deployment pricing.
Designed for early-stage companies building agentic applications. Discounted rates with generous free trace allotments. Available for 1 year before graduating to Plus Plan.
Target Markets
- Individual developers and AI researchers
- Startups building AI-powered applications
- Enterprise AI teams (35% of Fortune 500 use LangChain services)
- Software engineering teams implementing LLM applications
- Data science and machine learning teams
- Financial services and fintech companies
- Building AI agents and autonomous systems
- Retrieval-Augmented Generation (RAG) chatbots
- Research assistants and knowledge retrieval systems
- Customer service automation and support chatbots
- Financial operations and analysis tools
- Data operations and business intelligence
- Cisco
- Replit
- Clay
- Harvey
History & Milestones
Reached 99,000 GitHub stars and 250,000 LangSmith signups
Announced alpha releases of LangChain 1.0 and LangGraph 1.0
Raised $125 million Series B led by IVP, achieving unicorn status at $1.25 billion valuation
LangChain 1.0 and LangGraph 1.0 officially released as stable versions
Launched No Code Agent Builder in LangSmith (private preview)
3 AI Tools by LangChain, Inc.
A lightweight library for building swarm-style multi-agent systems using LangGraph, enabling agents to hand off tasks to other agents.
LangMem
7moOpen-source SDK from LangChain for long-term memory in LLM agents, with hot-path tools, a background memory manager, and native LangGraph storage integration.
LangChain
9moComposable framework for building with LLMs, including orchestration for agentic workflows and infrastructure for deploying at scale.
