> ## Documentation Index
> Fetch the complete documentation index at: https://docs.langchain.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Why BYOC

> Compare LangSmith BYOC with self-hosted LangSmith to decide which deployment model fits your organization.

BYOC is for organizations that want the data ownership and network isolation of self-hosting, without spending engineering time building and operating the full LangSmith platform themselves. The data plane stays in your AWS account, and LangChain manages the LangSmith infrastructure.

## What BYOC provides

* **Faster time to value**: You provision an AWS account and the required roles, and LangChain handles the rest of the provisioning flow.
* **Customer-owned data**: Databases, object storage, and compute run in infrastructure that you own.
* **Private networking**: The data plane runs inside your AWS account and can connect privately to your systems without exposing them publicly.
* **SaaS-aligned architecture**: The data plane is provisioned using a tried and tested architecture.
* **Monitoring out of the box**: LangChain has visibility into data plane health and metrics, and can proactively identify, investigate, and remediate issues.
* **Less platform maintenance**: Your engineering team spends more time driving value with LangSmith and less time managing LangSmith infrastructure, upgrades, scaling, and operational drift.
* **Automatic upgrades**: You receive automatic upgrades to a recent version of LangSmith.
* **Lower barrier to multi-environment and multi-region rollout**: Run multiple LangSmith data planes across environments, accounts, or regions without rebuilding the architecture from scratch each time.

## Compare BYOC and self-hosted

The table below compares the two deployment models:

| Dimension         | BYOC                                                                                                                   | Self-hosted                                                                                                         |
| ----------------- | ---------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------- |
| **Primary value** | Customer-owned data plane with a managed LangSmith operating model                                                     | Maximum control over the full LangSmith deployment                                                                  |
| **Time to value** | Faster: provision the account and role, then LangChain provisions the supported data plane architecture                | Longer: you design, provision, connect, secure, and operate the full stack                                          |
| **Operations**    | LangChain owns more of the product operating model, upgrade path, and supportable infrastructure pattern               | You own deployment, upgrades, scaling, monitoring, and incident response for the full stack                         |
| **Architecture**  | Standardized and close to LangChain SaaS production architecture                                                       | More flexible, but easier to drift from supported patterns                                                          |
| **Best fit**      | Teams that need data isolation and private networking, but do not want to operate every LangSmith component themselves | Teams that require full-stack ownership, unsupported infrastructure patterns, or cannot use a managed control plane |

## Move from self-hosted to BYOC

You can move to BYOC from an existing self-hosted deployment. Traces are not migrated today, but users, roles, datasets, experiments, prompts, annotation queue configuration, automation rules, and dashboards can be copied over.

To plan a migration, [contact the LangChain sales team](https://www.langchain.com/contact-sales).

## See also

* [BYOC overview](/langsmith/byoc)
* [BYOC architecture](/langsmith/byoc-architecture)
* [Self-hosted LangSmith](/langsmith/self-hosted)

***

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