Model provider

Use OpenAI models in Douchat with your own key

Add OpenAI as a custom model provider and choose its models for any agent. Requests go to OpenAI with your key, and usage is billed by OpenAI, not Douchat.

Models settings with an OpenRouter provider and a default model selected

Chat Completions, your models

Douchat calls the OpenAI Chat Completions API with the models you list. Pick a default model, choose a different one per agent, and mark reasoning models so they get room to think.

Your key stays on your computer

The API key is stored encrypted on your computer and is never part of cloud sync. If you change the API address, Douchat asks for the key again.

Add OpenAI

  1. 1

    Open Models

    Open the Models settings in the Douchat desktop app and add a provider.

  2. 2

    Enter the details

    Choose the OpenAI-compatible format, enter the API address and your API key, and list the models you want.

  3. 3

    Test and choose

    Test the connection, then pick a default model or assign one to an agent.

Frequently asked questions

Do OpenAI models use Douchat credits?

No. Custom providers are billed by the provider. Douchat credits only apply to Douchat-hosted cloud models.

Can I use custom models from the web app?

Custom models run through the desktop app, so the web app can use them when your desktop on the same account is online.

Keep exploring

Try Douchat today

Open the web app in your browser, or download the desktop app to bring your local agents into the chat.