Home/AI agent builders/LangChain (LangGraph)

LangChain (LangGraph) pricing

LangSmith is LangChain's commercial platform for building, tracing, evaluating, deploying and governing AI agents, with open source frameworks and a no-code agent builder called Fleet.

AI agent buildersFree planPriced per minuteSelf-serve + sales
Visit LangChain (LangGraph)Prices checked Oct 29, 2026

How much does LangChain (LangGraph) cost?

Paid plans start at $39/mo
Free plan
Yes
Usage price
$1/minute
Enterprise
Contact sales
Read from www.langchain.com/pricing on Oct 29, 2026. Price changed? Tell usSee the line each price came from

In your favor

  • Free plan. Developer plan: $0 per seat, 1 seat, up to 5k base traces per month and community support, then pay-as-you-go. Fleet includes 7 LSU per organization each month; after that Fleet pauses new runs until reset or upgrade.

Watch out for

  • Extra usage is billed. Usage beyond included traces and LSUs is billed pay-as-you-go; traces billed monthly in arrears
  • No refunds on a long commitment. Fees paid are non-refundable, payment obligations non-cancelable, except as expressly provided

How you buy and get started

Self-serve + salesButtons on their site: Start for free, Sign up, Contact sales, Get a demo
Sign up
Self-serve signup on Developer and Plus; Developer can upgrade to Plus on the billing page
"Yes, Developer plan users can easily upgrade to the Plus plan on the"
Setup
Not stated
When sales steps in
Enterprise plan via sales for advanced administration, security, support or deployment
"The Enterprise plan is for teams that need more advanced administration, security, support, or deployment options."
Support
Community support on Developer
"Community support"
Support
Support SLA on Enterprise
"Support SLA"

What LangChain (LangGraph) does

LangChain sells LangSmith, covering observability, evaluation, deployment, sandboxes, an LLM gateway, an autonomous improvement agent (Engine) and no-code agents (Fleet), alongside open source frameworks (deepagents, langchain, langgraph). Pricing is per seat plus pay-as-you-go usage billed in LangSmith Standard Units (1 LSU = $1).

Good for
Engineering teams that build and run production agents and need tracing, evals and deployment; non-technical teams building agents in natural language with Fleet; enterprises needing self-hosted or hybrid deployment, SSO and governance.
Channels
API, MCP server
Main product
LangSmith agent engineering platform
Also includes
Observability and tracing, Evaluation, Deployment (Agent Server), Sandboxes, LLM Gateway, Engine
Connects to
Remote MCP servers, Built-in Fleet tools, Third-party tools via MCP
Public API
Yes
MCP server
Yes
  • No-code visual builderCreate agents for daily tasks using everyday language, not code
  • Multi-agent orchestrationNot stated
  • Knowledge base / RAGNot stated
  • Prebuilt app integrationsFleet includes built-in tools and supports connecting third-party tools via a remote MCP server.
  • Choice of LLM modelsChoose your model. Own your harness.
  • Human-in-the-loop approvalsRequire
  • SOC 2 / SSO / governanceSSO / SAML
  • API and channel deploymentTrigger agent via API

The same 8 checks appear on every tool in AI agent builders. Each tick quotes the vendor's own site.

Security and your data

QuestionTheir answerWhere it says so
Trains AI on your data?no"No. LangSmith does not use your data to train models."pricing
HIPAA (signs a BAA)Not stated
SOC 2Not stated
GDPRNot stated
CCPANot stated
PCINot stated
ISO 27001Not stated
Single sign-onGoogle and GitHub SSO on lower plans; custom SSO / SAML on Enterprise"SSO / SAML"enterprise
Trust centerhttps://trust.langchain.com/"Trust Center"home

Security answers are the vendor's own claims, quoted. We don't audit them.

Every plan

PlanMonthlyBilled yearlyIncludedOver the allowanceWhere it says so
Developer/ seat per month $0 – 5000 base traces1 seat – "$0 / seat per month"
Plus/ seat per month $39 – 10000 base traces – "$39 / seat per month"
Pay as you go usage (LSU)/ LSU $1per minute – – – "**$1.00 / LSU**"
Enterprise Quote – – – "Custom pricing"

Free plan: Developer plan: $0 per seat, 1 seat, up to 5k base traces per month and community support, then pay-as-you-go. Fleet includes 7 LSU per organization each month; after that Fleet pauses new runs until reset or upgrade.

Fine print

Billing increment
Sandbox rates billed per second
"All rates billed per second."
Billed beyond usage
Usage beyond included traces and LSUs is billed pay-as-you-go; traces billed monthly in arrears
"traces are billed monthly in arrears for your usage"
Contract
Developer and Plus are monthly self-serve; Enterprise is invoiced annually upfront
"Enterprise plans are invoiced annually upfront."
Refunds
Fees paid are non-refundable, payment obligations non-cancelable, except as expressly provided
"Except as expressly provided in this Agreement, all payment obligations are non-cancelable, and Fees paid are non-refundable."
Auto renew
Not stated
Price change notice
Not stated

"Not stated" means we read their pricing page and terms and they don't say.

About the company

Legal name
LangChain Inc., a Delaware corporation
Address
Headquartered in San Francisco, with offices in New York, Boston, and Amsterdam
Online since
Dec 3, 2019
Domain registration date
Ships updates
6 in the last 12 months
Last on Jan 31, 2027, from their changelog
Founder
Harrison Chase
Founder
Ankush Gola (co-founder)
Funding
$125 million funding, unicorn valuation (press headline)
"Exclusive: Early AI darling LangChain is now a unicorn with a fresh $125 million in funding"
Customers
"Works with 35% of the Fortune 500; 7K+ active LangSmith customers; 5 of the Fortune 10"
their claim
Backing
"Backed by the best in the business"
their words

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Reviews elsewhere

G2 ↗Trustpilot ↗Reddit ↗Product Hunt ↗

We link to reviews instead of copying ratings: those sites don't allow reuse, and we don't test products ourselves.

Questions

Is LangChain (LangGraph) free?

Yes. Developer plan: $0 per seat, 1 seat, up to 5k base traces per month and community support, then pay-as-you-go. Fleet includes 7 LSU per organization each month; after that Fleet pauses new runs until reset or upgrade. Paid plans start at $39/month.

How much does LangChain (LangGraph) cost?

Paid plans start at $39 per month.

Does LangChain (LangGraph) train AI on your data?

No, according to LangChain (LangGraph): "No. LangSmith does not use your data to train models."