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

# Bring your own model account (BYOK)

> Use a Codex account for model inference in Serverless Agents

BYOK lets a Serverless Agent use an organization-connected Codex account for
eligible OpenAI models. OpenComputer keeps the authorization in its control
plane; it is never added to your deployment, agent source, or runtime
environment.

BYOK is available on the **Pro and Max plans**. Runtime compute is still charged
to your OpenComputer account. Model calls routed through your Codex account have
no OpenComputer model-inference charge and remain subject to the provider's
allowances and terms.

## Connect a Codex account

Only an organization admin can connect or replace the organization account.
From a linked project repository, run:

```bash theme={null}
npx --yes --package=@opencomputer/cli@latest -- opencomputer model-access connect codex
```

To choose a project explicitly, including when you are outside its repository,
add its slug:

```bash theme={null}
npx --yes --package=@opencomputer/cli@latest -- opencomputer model-access connect codex --project my-project
```

The CLI opens the authorized OAuth flow in your browser, stores the account for
the organization, and enables it for both development and production in the
selected project. The CLI exits after the callback completes.

An organization has one Codex account. Connecting again replaces that account
for every project that uses it.

## Enable an existing account for another project

Open the project's **BYOK** page and select **Enable for this project**. You can
also run the connect command with `--project`; if the organization account is
already connected, OpenComputer enables the project without requiring another
OAuth flow.

Project enablement always covers both development and production. Select
**Disable for this project** to return only that project to Managed inference,
or disconnect the organization account to stop using it in every project.

## Select a Codex model

Use the native `openai` provider in agent code:

```tsx theme={null}
import { useModel } from "@opencomputer/agent";

export default function Agent() {
  useModel({ provider: "openai", model: "gpt-5.6-sol" });
  return "You are a helpful assistant.";
}
```

The debug inspector labels a successful subscription-funded route **Codex
account · BYOK**. If no connected and enabled account can serve the request,
OpenComputer uses Managed inference when available. Managed fallback model
calls are charged normally and are shown as Managed in session and usage
details.

To request an OpenAI model through Managed OpenRouter explicitly, use its full
OpenRouter identifier instead:

```tsx theme={null}
useModel({ provider: "openrouter", model: "openai/gpt-5" });
```

## Troubleshooting

* **The BYOK page asks you to upgrade:** the organization must be on Pro or Max.
* **The organization account is connected but the project is not enabled:**
  select **Enable for this project** or rerun the CLI command with `--project`.
* **The account is revoked or needs authentication:** rerun the connect command
  to replace it.
* **A session used Managed inference:** confirm the project is enabled and that
  agent code uses `provider: "openai"` with a Codex-supported model.

See [Models](/agents/models) for the general `useModel()` contract.