Your data & privacy

Hosted services under maintenance: Platform and the managed API are under maintenance. Their instructions below are retained for when those features return; Chat and Mobile instructions describe the live apps. This notice does not apply to public model downloads or Vinci Code’s bring-your-own-key setup. See the current products page .

Privacy is central to Vinci. Here’s what that means in plain language — including the details about what is stored. This help page does not replace the published Privacy Policy ; consult it for the governing definitions, exceptions, retention periods and your rights.

How conversations are processed and saved

Messages, relevant context and attachments are sent to Vinci and model providers to produce replies. Content logging is separate from saved history: new web accounts sync new chats by default, so those conversations are stored on our servers. Existing accounts keep their sync setting. Guest chats stay in that browser.

Earlier local browser chats are kept in Archived on that device and will not be uploaded by sync. Copies from earlier sync use may still be on our servers. Account memories and other saved features have separate controls, described below.

The things that are saved

Several features intentionally save data. Their storage location and controls differ:

Memories in Vinci Chat web. When you’re signed in, saved memories are stored with your account, independently of conversation sync. In the no-account web demo, memories are kept locally in that browser and may be included with chat requests. Signed-in web memory is on by default. With memory on, Vinci may save facts from your chats; manage them in Account > Memory & skills. Browser memories move to your account only when you use the explicit move action. Storage and controls in other products or versions can differ.
Custom instructions in Vinci Chat web. These are saved in your browser and sent with chat requests to guide replies. They are not saved as account settings.
Skills are separate from custom instructions, with their own storage and controls. Check the guidance for the product and version you use.
Documents saved for retrieval are stored, tied to your account, and deleted when you delete them.
Anything you share with a public link (like a shared document) stays available until you revoke the link.
Synced conversations, including new chats from new web accounts by default (see below).

Anonymous usage analytics

To understand how Vinci is used and improve it, we collect a small amount of anonymous product analytics — for example which features are used, which model handled a request, how long a reply took, and error types. We never send conversation content: your messages, replies, attachments, saved memories, and searches are never sent — the chat input is explicitly excluded, and there is no field for any of it. It’s processed by PostHog (United States). Analytics is off until you turn it on in Settings — Vinci works exactly the same either way.

Where it runs

Model inference runs on DeepInfra or Fireworks, depending on the class. Your messages are sent to that provider to generate a reply.
Your account, any synced conversations, and files you upload are stored on our servers.
Web search requests are sent to a search provider to fetch results.

Where your conversations live

New web accounts start with new-chat sync on; existing accounts keep their setting. Earlier local browser chats in Archived stay on that device. Mobile 1.0.10 reads the same account-level sync setting. When it is on, the app uploads that account’s local chats from the phone. Accounts created in Mobile choose On this device or Synced under Where should your chats live?; sync stays off unless Synced is chosen.

About device sync

New web accounts sync new chats by default. Existing sync-off accounts can turn on Sync new chats in Account > Data & privacy. Synced conversations are stored encrypted at rest in Canada (Montréal, ca-central-1) using SSE-S3. The service can read them to provide sync.

Earlier local browser chats stay in Archived and will not be uploaded by sync. Archiving does not delete copies already on our servers. When you have synced copies, Delete synced copies appears under Account > Data & privacy, whether sync is on or off. Use it to delete those copies. Your sync setting and chats on this device, including Archived, stay. Turning sync off also deletes synced copies. Cloud deletion cannot be undone; first keep anything important on a device you still have.

Encryption depends on the feature

Encrypted at rest means stored data is encrypted on the storage system. The service can still read it to provide the feature. Conversation sync in Vinci Chat uses this approach; it is not end-to-end encrypted.

Signed-in web account memory is separate from conversation sync. The service can read saved account memories when using them to help answer you. Memory is on by default. With memory on, Vinci may save facts from your chats to your account. Manage them in Account > Memory & skills. Turning conversation sync off does not turn that account memory into device-only data.

Browser memories are not moved automatically. Use the explicit move action in Account > Memory & skills if you want to move them to your account.

Some mobile and older memory-sync versions use a different design: the device holds a password-derived key and the memory-sync endpoint receives ciphertext. That protection applies to that encrypted memory copy. Information included in a model request still has to be processed to answer the request. Check the product and version you use rather than assuming one encryption rule covers every feature.

These distinctions explain storage; they do not grant permission to migrate old private content or change your existing choices. See the published Privacy Policy for the commitments that apply to your information.

What this means for you

New web accounts sync new chats by default. Existing accounts keep their setting; earlier local browser chats stay in Archived and are not uploaded by sync.
Memory is on by default. With memory on, Vinci may save facts from your chats; manage them in Account > Memory & skills.
Uploads and public links have their own controls. You can delete uploaded retrieval documents, revoke public links, or delete synced copies. Deleting a chat does not delete separately saved memories, documents or public shares.
As with any tool, avoid pasting secrets you wouldn’t want stored anywhere.

Open weights

SimpleDirect publishes open-weight models: files you can run with compatible software under their individual licences. This does not mean the hosted apps or all their features run locally. Start with the model catalogue and check your chosen software’s data handling.