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View our Pricing page for more information on our pricing plans.

I’ve been using LangSmith since before pricing took effect for new users. when will pricing go into effect for my account?

If you’ve been using LangSmith already, your usage will be billable starting in July 2024. At that point if you want to add seats or use more than the monthly allotment of free traces, you will need to add a credit card to LangSmith or contact sales. If you are interested in the Enterprise plan with higher rate limits and special deployment options, you can learn more or make a purchase by contacting our sales team.

Which plan is right for me?

If you’re an individual developer, the Developer plan is a great choice for small projects. For teams that want to collaborate in LangSmith, check out the Plus plan. If you are an early-stage startup building an AI application, you may be eligible for our Startup plan with discounted prices and a generous free monthly trace allotment. Visit our LangSmith for Startups page for details. If you need more advanced administration, authentication and authorization, deployment options, support, or annual invoicing, the Enterprise plan is right for you. Visit our LangSmith for Startups page for details.

What is a seat?

A seat is a distinct user inside your organization. We consider the total number of users (including invited users) to determine the number of seats to bill.

What is a trace?

A trace is one complete invocation of your application chain or agent, evaluator run, or playground run. Here is an example of a single trace.

What is a Deployment Run?

A Deployment Run is one end-to-end invocation of a LangGraph agent deployed via LangSmith Deployment. Nodes and subgraphs within a single agent execution are not charged separately. Calls to other LangGraph agents (through RemoteGraph or the LangGraph SDK or the API directly) are charged separately, to the deployment that hosts the agent being called. An interrupt for human-in-the-loop creates a separate Deployment Run when resuming. Deployment Runs are billed at $0.005 each. For high-volume usage, please contact our sales team to discuss custom pricing options.

What is an ingested event?

An ingested event is any distinct, trace-related data sent to LangSmith. This includes:
  • Inputs, outputs and metadata sent at the start of a run step within a trace
  • Inputs, outputs and metadata sent at the end of a run step within a trace
  • Feedback on run steps or traces

I’ve hit my rate or usage limits. what can I do?

When you first sign up for a LangSmith account, you get a Personal organization that is limited to 5000 monthly traces. To continue sending traces after reaching this limit, upgrade to the Developer or Plus plans by adding a credit card. Head to Plans and Billing to upgrade. Similarly, if you’ve hit the rate limits on your current plan, you can upgrade to a higher plan to get higher limits, or contact support via support.langchain.com with questions.

I have a developer account, can I upgrade my account to the plus or enterprise plan?

Yes, Developer plan users can easily upgrade to the Plus plan on the Plans and Billing page. For the Enterprise plan, please contact our sales team to discuss your needs.

How does billing work?

Seats Seats are billed monthly on the first of the month. Additional seats purchased mid-month are pro-rated and billed within one day of the purchase. Seats removed mid-month will not be credited. Traces As long as you have a card on file in your account, we’ll service your traces and bill you on the first of the month for traces that you submitted in the previous month. You will be able to set usage limits if you so choose to limit the maximum charges you could incur in any given month.

Can I limit how much I spend on tracing?

You can set limits on the number of traces that can be sent to LangSmith per month on the Usage configuration page.
While we do show you the dollar value of your usage limit for convenience, this limit evaluated in terms of number of traces instead of dollar amount. For example, if you are approved for our startup plan tier where you are given a generous allotment of free traces, your usage limit will not automatically change.You are not currently able to set a spend limit in the product.

How can I track my usage so far this month?

Under the Settings section for your Organization you will see subsection for Usage. There, you will be able to see a graph of the daily number of billable LangSmith traces from the last 30, 60, or 90 days. Note that this data is delayed by 1-2 hours and so may trail your actual number of runs slightly for the current day.

I have a question about my bill…

Customers on the Developer and Plus plan tiers should contact support via support.langchain.com. Customers on the Enterprise plan should contact their sales representative directly. Enterprise plan customers are billed annually by invoice.

What can I expect from support?

On the Developer plan, community-based support is available on LangChain community Slack. On the Plus plan, you will also receive preferential support via support.langchain.com for LangSmith-related questions only and we’ll do our best to respond within the next business day. On the Enterprise plan, you’ll get white-glove support with a Slack channel, a dedicated customer success manager, and monthly check-ins to go over LangSmith and LangChain questions. We can help with anything from debugging, agent and RAG techniques, evaluation approaches, and cognitive architecture reviews. If you purchase the add-on to run LangSmith in your environment, we’ll also support deployments and new releases with our infra engineering team on-call.

Where is my data stored?

You may choose to sign up in either the US or EU region. See the cloud architecture reference for more details. If you’re on the Enterprise plan, we can deliver LangSmith to run on your kubernetes cluster in AWS, GCP, or Azure so that data never leaves your environment.

Which security frameworks is LangSmith compliant with?

We are SOC 2 Type II, GDPR, and HIPAA compliant. You can request more information about our security policies and posture at trust.langchain.com. Please note we only enter into BAAs with customers on our Enterprise plan.

Will you train on the data that I send LangSmith?

We will not train on your data, and you own all rights to your data. See LangSmith Terms of Service for more information.

什么是 Fleet 运行?

LangSmith Fleet 运行是对 Fleet 代理的完整调用,由接收消息或事件触发,无论是自动触发还是手动发送。Fleet 运行包括通过配置的触发器(包括第三方集成或其他连接的服务)传递给代理的任何消息,以及通过 Fleet 用户界面(例如,通过聊天界面)直接发送的消息。如果调用成功或被中断,则计为一次 Fleet 运行。在人工介入中断后恢复执行构成一次单独的 Fleet 运行。执行失败不计为 Fleet 运行。

Fleet 定价是否包含模型成本?

不包含。模型使用由您的模型提供商单独计费。Fleet 允许您选择所需的模型(例如,Anthropic、OpenAI、Gemini 或其他提供商),并使用您的提供商 API 密钥进行连接。有关配置模型的更多信息,请参阅 Workspace 管理 页面。

Fleet 定价是否包含代理工具?

Fleet 包含内置工具,并支持通过远程 MCP 服务器连接第三方工具。第三方工具通常需要您使用您的账户进行身份验证,任何费用或使用费用均由第三方提供商计费。有关设置工具密钥的更多信息,请参阅 Workspace 管理 页面。

Fleet 运行是否自动在 LangSmith 中追踪,并计入计费?

是的。每次 Fleet 运行都会自动在 LangSmith 中追踪。这些追踪归属于用户账户,并根据客户的 LangSmith 计划计入基于使用量的计费。

如何禁用 Fleet?

如果您使用的是自托管 LangSmith 实例,可以通过在 values.yaml 中将以下设置为 false 来禁用 Fleet:
backend:
  agentBootstrap:
    enabled: false

config:
  agentBuilder:
    enabled: false

agentBuilderToolServer:
  enabled: false

agentBuilderTriggerServer:
  enabled: false
如果您使用的是云 LangSmith,请 联系我们的支持团队 以禁用 Fleet。