Platform for building, testing, deploying and monitoring AI agents, with open source frameworks and a hosted LangSmith product.
LangChain is an agent engineering platform for companies building AI agents. Its hosted LangSmith product covers the agent development lifecycle: observability with step-by-step tracing, evaluation of agent performance, deployment on infrastructure for long-running tasks, isolated sandboxes for agent-generated code, an LLM gateway for controlling model calls and spend, and Fleet for no-code agents. Open source frameworks deepagents, LangGraph and LangChain support building agents with any model provider. It is aimed at engineering and platform teams. LangSmith is sold as a platform with a demo and pricing plans, and can be deployed as SaaS, BYOC or self-hosted.
Free
$39/mo per seat
Customcontact sales
Prices in USD, as shown by langchain.com. Source: pricing page. Last checked October 30, 2026.
Copy the prompt below and paste it into the agent you already use. It has the plans and prices from this page and asks you the right questions first.
I want to decide whether LangChain (langchain.com) is the right tool and which plan to pick. Below is what the StableMRR pricing directory read from LangChain's own pricing page (last checked 2026-10-30). It can be out of date, so treat it as a starting point. Category: AI agents / Chatbots and agent builders What it does: Platform for building, testing, deploying and monitoring AI agents, with open source frameworks and a hosted LangSmith product. Plans: - Developer: Free. Limits: seats 1, base traces 5k per month, Fleet allowance 7 LSU per month, Sandboxes 10. Includes: Tracing and monitoring, Online and offline evals, Prompt Hub and Playground, Annotation queue, Bulk data export - Plus: $39/mo per seat. Limits: seats unlimited, base traces 10k per month, Fleet allowance 37 LSU per month, Sandboxes 10. Includes: Deployment, Engine and more, Unlimited seats, 1 free serverless deployment, Fleet with 37 LSU included, Tuned Evaluators - Enterprise: Contact sales. Limits: seats custom, base traces custom. Includes: Self-hosted and hybrid deployment, Custom SSO, ABAC and RBAC, Support SLA, Custom seats and workspaces, Annual invoice Alternatives in the directory: Botpress, Chatbase, CruiseGPT, Landbot Pricing page: https://www.langchain.com/pricing Directory listing: https://stablemrr.com/p/langchain-com First ask me three short questions about my team size, budget and what I need it for. Then recommend one plan, tell me what could make it a bad fit, and compare it with the alternatives. Finish with what I should check on the vendor's site before I pay.
No price changes recorded since we started tracking on October 30, 2026.
| Product | Category | Free plan | Paid from | Plans | Checked |
|---|---|---|---|---|---|
| BotpressPlatform for building chatbots and agents | Chatbots and agent builders | Yes | - | 4 | Oct 29, 2026 |
| ChatbaseCustom AI chatbot trained on your data | Chatbots and agent builders | No | $40/mo | 4 | Oct 29, 2026 |
| CruiseGPTAI cruise planning assistant that answers questions about cruise lines, ships, cabins, ports and loyalty programmes. | Chatbots and agent builders | Yes | $9.99/mo | 4 | Oct 29, 2026 |
| LandbotNo-code chatbots for lead capture | Chatbots and agent builders | Yes | €40/mo | 5 | Oct 29, 2026 |
| LindyAI assistant that runs workflows | Chatbots and agent builders | Yes | $49.99/mo | 3 | Oct 29, 2026 |
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How this page was made. Plans and prices are read automatically from langchain.com's public pricing page, checked against the page text, and re-checked about every week. Method. Something wrong? Tell us.
