Models and providers

Understand Nock's conversation brain, managed provider route, and your own provider connections.

Nock can use a connected ChatGPT plan through Codex, Nock’s managed AI, or a provider connection you add in Settings. These are separate routes. A provider may offer an API key, account sign-in, or several connection methods. The available choices depend on your plan, the Codex setting, and the providers connected in Settings. A provider appearing in the list does not mean its use is included with every plan.

What each route means

ChatGPT plan through Codex. When Use my ChatGPT plan (Codex) is enabled and Codex is signed in, the voice agent can use that account for conversation turns. Codex is separate from an API key and uses the limits of your ChatGPT account.
Nock’s managed AI. When a turn uses Nock’s service, Nock routes it through the providers configured for that service and meters eligible usage against your Nock account. A backup can answer if the first route cannot serve a request. The exact order can differ between the voice and background-work lanes and can change with service configuration; no single provider or model is guaranteed for every turn. For the general data-handling statement, open Settings → Privacy → Where your requests go.
Your own key. Where your plan and Settings allow it, choose a connected provider and use its key. That provider bills your account directly. See Bring your own AI.

The Codex brain, the managed route, and an API key are different paths. Nock Own requires your Codex connection or your own key for conversation; it does not silently switch to Nock’s managed AI if your own route cannot answer. See Nock Own and Bring your own AI.

On Nock Own, the Codex connection is for the conversation brain. Nock’s full agent has a separate Sign in with ChatGPT connection under Your own AI → Full agent; one sign-in does not replace the other.

Image generation is a separate metered feature: its prompt goes to the picture service used by your account, rather than changing the model selected for voice conversations or background work. See Make and use pictures for its controls, limits, and saved images.

Check or change a model

Open Settings → Nock AI to check Use my ChatGPT plan (Codex) and its connection state.
Open Settings → Providers → Models to select the Notch voice model or Worker model when those choices are available.
Open Settings → Providers to connect or remove a provider using the controls shown for your account.
Send a short test request. If a choice reports that a restart is required, restart Nock after saving your work.

The Notch voice model is the language model that produces a spoken conversation. It is not the text-to-speech voice. A Worker model is used for supported background tasks; it does not change the voice agent’s model.

Connect a provider account

In Settings → Providers, use Search providers or expand Available. Choose the method on the provider’s row: Add key, Sign in, or a named method when it offers more than one. Only use methods Nock actually shows; not every provider offers subscription sign-in.

Follow the instructions that stay on the row during sign-in. A device-code flow asks you to enter the displayed code on the provider’s authorization page. A pasted-code flow instead gives you an authorization code to return to Nock’s Authorization code field and confirm with Finish. These are different directions—follow the provider’s own instructions.

If the browser does not open, choose Open sign-in page, or Copy sign-in link and open it yourself. Complete the account and consent steps, then allow a few minutes for confirmation. If sign-in fails or times out, check whether the provider finished authorization before choosing Refresh providers or starting again. Never send an authorization code or key in ordinary chat or a support report.

After the provider shows Connected, select an available model and send a short request. Connected means a connection was found, not that every model is available to that account or that a request has completed. A provider’s account sign-in here is separate from the Use my ChatGPT plan (Codex) connection for Nock’s conversation brain and Nock Own’s Full agent connection.

Provider errors

A saved provider connection can still be expired, restricted, or temporarily unavailable. Check its connection state and the exact error before changing keys. Nock does not ask you to paste a provider key into chat or a support request. For limits, see Usage and limits; for a blocked request, see Usage troubleshooting.