What Write by Zaweba sends to an AI service, and when
Write by Zaweba sends text to your AI account only when you ask: the selection or document text, capped at 24,000 characters, shown in Context sent.
Before connecting any AI service to a word processor, it's sensible to know exactly what leaves your computer. Documents hold personal letters, health matters, work in progress and other people's details. Write by Zaweba is an offline app with no account and no telemetry, and its optional AI features are built so that you can see and control what is sent.
Nothing until you ask
AI in Write is off until you connect your own account. Even then, nothing is sent in the background. Text goes to the AI service only when you choose an action from the AI menu or ask in the Ask AI panel. Opening a document, typing, saving and spell checking never involve the AI service.
What goes with each request
Each request sends two things. The first is your text: the selected text if you have selected something, or the whole document's text if nothing is selected. Whole documents are trimmed to 24,000 characters. The second is Write's own instructions for the job, such as how to proofread or how to rewrite more formally.
That is all. The request is made up of the words of your document and the instructions, so selecting a single paragraph sends just that paragraph and the instructions for the action.
Seeing it for yourself
The Context sent view shows what was sent. You don't have to take anyone's word for it. If you are unsure what a request included, open the view and read it. It is a good habit when you start using AI help, and a useful check on any document with sensitive material.
Connecting an AI service usually means giving Write a key, a long code that lets the app use your account. Write stores keys encrypted with Windows DPAPI, the data protection built into Windows, which ties the encryption to your Windows user account.
Choosing where your text goes
Which provider you connect decides where the text ends up. Write supports many, including Claude, OpenAI, Gemini, Azure, Mistral, Grok and DeepSeek. Each has its own terms about how it handles what you send, so read them for the account you use.
If you want text never to leave your computer, connect a local model, for example through Ollama. The request then goes to a program on your own machine. The copy and paste option, using a chat website, puts every step in your hands, since you paste the request yourself.
Practical habits
Select before you ask. A selection sends less than a whole document, and the reply is usually more focused anyway.
Think before sending other people's details. A letter about a family member's health, a reference for a colleague or a document containing addresses may not be yours alone to share with an online service.
Use a local model for sensitive work if you use AI for it at all. Or keep AI for the drafts and general writing, and do the private parts yourself.
Built to be honest
These choices fit the rest of Write. The app works offline, saves to open formats you control, and its own .zawr files are .docx inside. Report a problem in the Help menu sends nothing unless you click Send. AI follows the same rule. It is your text, and it leaves only when you say so.
