OpenAI
OpenAI is a cloud provider of language models. The assistant sends your question and the graph to OpenAI over a secure connection and gets the answer back. You need a key from OpenAI, and OpenAI bills you for what you use; the price depends on the model and on how long the questions and answers are. Settings ▸ Assistant shows what the two suggested models cost, with the date of the prices; the provider's bill is the truth. See Which model to take.
How to set it up
- Create a key in your account on OpenAI's site (platform.openai.com). Copy it.
- In the app: Settings ▸ Assistant ▸ OpenAI.
- Paste the key into OpenAI key. The app checks it at once: "Checking the key with the provider…", then "Key accepted: 24 models are available. It is kept while the app is open."
- To keep it after a restart, tick Remember on this computer (the system keychain). See Keys and where they are kept.
- Model: pick from the list the key opened. Which model to take under the field suggests two: To start
gpt-6-luna($0.10 per million tokens sent, $0.50 per million received) and For long buildsgpt-6.1-sol($2 and $10). Prices as of 14 November 2026. Choose a model that can call tools. - Test connection: "The model answered in 900 ms."
- Save settings.
The card OpenAI then shows Ready (or Key for this session when the key is not remembered).
Organization and project
Organization (optional) and Project (optional): only if your OpenAI key belongs to several organizations or projects. Paste the ids from the OpenAI settings page, such as org-… and proj_…. Requests are then billed there.
Server address
Leave Server address (optional) empty: the app uses OpenAI's official address. Fill it only for your own proxy, and only with https. A key works only with the address it was pasted for: "This key was pasted for … and is never sent to another address. For the address above, paste its own key."
Web search
Its own web search, on the official address. It is billed separately: about $10 per 1000 searches. You can turn it off: Settings ▸ Assistant ▸ Allow web search. See Web search and pages.
Where to get a key
Get a key and What the provider does with your data under Which model to take show the addresses of OpenAI's pages, with Copy the address. The app opens no browser itself.
What can go wrong
- "OpenAI is chosen, but there is no key. The assistant will not answer until you add a key in Settings."
- "The provider did not accept this key. Check it and paste it again."
- "The server did not accept the key. Check the key in the assistant settings."
- "The server asks to wait. Ask again in a minute." Your account has hit a limit, or has no money left.
- "No model is chosen for the cloud assistant. Choose one in Settings ▸ Assistant."
- "A cloud key is never sent to an http address. Use an address that starts with https."