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Privacy Policy

Weightless AI, version 3.23.0 · Updated: November 2026

Weightless AI collects nothing. The extension has no server, no account, no analytics, no tracker. No data is sent to weightless-ai.fr or to any third party other than the AI service you choose (Google by default), with whom you deal directly using your own API key.

This document sets out exactly what stays on your device, what goes to the AI service you choose, and when.

01 What stays on your device

This data is held in Chrome local storage (chrome.storage.local) and never leaves your machine, unless you enable the Drive sync described in section 03.

Your API keys (Gemini, and if you add them OpenAI, OpenRouter, Anthropic, Mistral, Groq): in clear text, as in any browser extension. Encrypted storage does not exist in this context. They are never sent to Drive.
Your conversations: the last 40 messages, across at most five tabs.
Your settings: model, language, temperature, font size, accent colour, theme, system prompt, favourite prompts, custom / commands.
Today's token counter, reset every night.
The window position and size.
Your reminders (text and time), scheduled from an “Actions” card: deleted as soon as they have been shown.

The Clear local conversations button in the settings permanently deletes the conversations. Uninstalling the extension removes everything else.

02 What goes to the AI service you choose

Any processing by an online engine means a request to its API, with your key, and only to the engine selected for the current tab:

Gemini (Google, default engine): generativelanguage.googleapis.com
ChatGPT (OpenAI): api.openai.com
OpenRouter: openrouter.ai
Claude (Anthropic): api.anthropic.com
Mistral (Mistral AI): api.mistral.ai
Groq: api.groq.com

Each service processes this data under its own terms, which we invite you to read. With Ollama or Gemini Nano, nothing leaves your machine (see section 05). The following is sent to the chosen online engine:

Your questions and the context of earlier exchanges in the conversation.
The content of pages you ask to summarise, via the /page command or the Summarise button.
Selected text when you use the context menu, including the text of an input field you ask to rewrite (“Weightless AI: rewrite”).
Attached files: images and PDFs, up to 10 MB.
Today's date and your system prompt, if you have set one.

⚠️ Worth keeping in mind. Summarising a page sends its content to Google. Avoid it on a mailbox, a banking area, a medical record or a confidential work document. The site name is shown on the button precisely so that you always know which page would be sent.

Built-in Google Search

When web grounding is on — the Google Search setting, enabled by default — Gemini may run searches to support its answer. The corresponding queries appear beneath each answer, along with the sources cited. This setting can be turned off in the settings.

Use by Google

On the free tier of the Gemini API, Google states that requests and responses may be used to improve its products, including training its models. Projects with billing enabled fall under different terms. See the Gemini API terms and Google's privacy policy.

03 Google Drive sync

Optional, and off until you click the cloud icon and grant access. It saves your conversations and settings so you can find them on your other devices.

Scope of access: the only scope requested is drive.appdata. It grants access to a private folder reserved for the extension, invisible in your Drive and inaccessible to other applications. Weightless AI can neither read nor modify your other Drive files.

The Clear Drive data button in the settings permanently deletes this file. You can also revoke access from the third-party apps of your Google account.

04 Permissions and reasons

Permission	Why
storage	Store your conversations and settings on the device.
identity	Obtain the Google token needed for Drive sync, only if you enable it.
activeTab	Read the page you ask to summarise, at the moment you ask.
scripting	Inject the extraction script into that page, once. No permanent script is present on the sites you visit.
contextMenus	Offer the analysis actions when you right-click a selection.
notifications	Signal that an answer is ready when the window is minimised. Off by default.
system.display	Reopen the window at a position visible on the screens actually connected.
alarms	Trigger the reminders you schedule from an “Actions” card, at the time you chose.
Access to googleapis.com, api.openai.com, openrouter.ai	Reach the Gemini API, the Drive API, and the OpenAI and OpenRouter engines if you add a key for them.
Access to localhost	Reach Ollama, if it runs on your own machine.
Access to api.anthropic.com, api.mistral.ai, api.groq.com	Optional: requested only when you save a Claude, Mistral or Groq key.

Actions (calendar, directions…). The Google Calendar, Google Tasks and Directions buttons simply open a Google page in a new tab, with the title, date or address in the link: Google only receives them if you click, and the event is only created if you save it yourself. The extension has no access to your calendar, tasks or contacts. The .ics and .vcf files are created on your device.

Optional permission

Access to web pages (https://*/*) is declared optional: it is not granted at install time and the extension works without it. Chrome will ask for it if you click Summarise the active page, so that summarising still works after you change address in the same tab. You may refuse it, or remove it later from chrome://extensions.

New in 3.23. YouTube video: when you ask for a summary of a YouTube video with Gemini, the video’s address is sent to Google with your request, and Gemini reads the public video itself. Compare tabs: only the tabs you tick are read, once, and their text is sent to the AI engine you chose; this feature uses the optional permission above. Parcel tracking: the button opens the carrier’s tracking page, with the number in the link; if the carrier is not recognised, the number is opened on 17TRACK, a multi-carrier tracking site. None of this goes through a server of ours.

Weightless AI installs no permanent script on the pages you visit. The reading script is injected only when you explicitly ask for a summary, and is removed immediately afterwards. Likewise, the extension only writes into a page when you ask it to — rewriting through the right-click menu, or the “Insert” button under an answer — and only into the field you chose.

05 Gemini Nano and Ollama

If your device supports Chrome's local model, it appears in the model list. Exchanges then take place entirely on your machine: no network request, no API key, nothing sent to Google.

The same goes for Ollama, installed and run by you: the extension only contacts your own machine.

06 What we do not do

No analytics, no tracker, no cookie.
No server of ours; the extension sends us nothing.
No resale, no data sharing.
No advertising.
No account to create.

07 Your rights and remedies

Since the data stays on your device or in your own Drive, you keep full control of it: the Clear local conversations and Clear Drive data buttons in the settings delete everything, immediately and with no deferred confirmation.

For data processed by the AI service you chose (Google, OpenAI, OpenRouter, Anthropic, Mistral, Groq), contact that service: we have no access to it.

Questions or reports: contact@weightless-ai.fr (or weightless-ai.fr).

This English version is a translation provided for convenience. In the event of any discrepancy, the French version prevails.