LangChain pricing 2026: plans and costs
Quick pricing summary
- Developer: $0 seat per month, then pay as you go
- Plus: $39 seat per month, then pay as you go
- Enterprise: Custom (custom pricing, then pay as you go)
- Worth noting: Developer and Plus usage beyond included traces and allowances is billed pay as you go. Enterprise plans are invoiced annually upfront. LangChain offers discounted rates and credits for VC-backed startups.
Plans
Developer
$0 seat per month, then pay as you go
- 1 free seat
- 5k base traces/mo included, then pay as you go
- Community support
- 7 LSU Fleet allowance per month
Plus
$39 seat per month, then pay as you go
- Unlimited seats
- 10k base traces/mo included, then pay as you go
- 1 free small serverless deployment included
- 37 LSU Fleet allowance per month
- Access to Deployment, Engine, and more
Enterprise
Custom custom pricing, then pay as you go
- Self-hosted and hybrid deployment options
- Custom SSO, ABAC, and RBAC
- Support SLA
- Custom seats and workspaces
- Annual invoice billing
What you get on each plan
| Feature | Developer | Plus | Enterprise |
|---|---|---|---|
| Seats | 1 seat (free) | Unlimited (add seats at $39/seat) | Custom |
| Base traces included (Observability & Evaluation) | 5k / mo | 10k / mo | Custom |
| Deployment | N/A | 1 free small serverless deployment included | Custom |
| Fleet usage allowance | 7 LSU / mo | 37 LSU / mo | Custom |
| Hosting options | Cloud | Cloud | Cloud, Hybrid, or Self-Hosted |
| Data location | LangChain Cloud (US or EU) | LangChain Cloud (US or EU) | Your VPC (self-hosted) |
| SSO | Google, GitHub | Google, GitHub | Custom SSO |
| Role-based access control | Organization Roles (User and Admin) | Organization Roles (User and Admin) | Custom ABAC and RBAC |
| Tuned Evaluators | N/A | Public beta (US) | Public beta (US, Cloud) |
| Billing | Monthly, self-serve | Monthly, self-serve | Annual invoice |
Hidden costs & add-ons
| Cost driver | Price | When it applies |
|---|---|---|
| LangSmith Engine | $1.00 per LSU | Engine runs, about 7-45 LSUs per run, run every 6 hours |
| LangSmith Sandboxes | 0.0576 LSU per vCPU-hr (1 LSU = $1) | Sandbox compute, 8 LSU of sandbox usage per month included free |
LangChain pricing vs alternatives
| Brand | Entry price | Free plan | Model | Best for | |
|---|---|---|---|---|---|
| LangChain | Free; paid from $39 per seat / mo | Yes | Per seat | — | |
| LangGraph | — | — | — | Teams building long-running, stateful AI agents. | Compare → |
| OpenAI Agents SDK | — | — | — | Teams already building on OpenAI models that want a lightweight framework to write their own agent logic. | Compare → |
| CrewAI | Contact sales | Yes | Flat tiers | Enabling business and technical teams to build agents while giving platform teams the control to govern them. | Compare → |
| Microsoft Copilot Studio | — | — | — | — | Compare → |
List prices as published on www.langchain.com/pricing. Totals are worked examples, not quotes.