Privacy Policy

Effective date: 2026

Lucid Train is built to be private by default. This policy explains what the Software and this website do, and more importantly do not do, with your data. It is provided by LUCIDTRAIN PRIVATE LIMITED.

The short version

The Software runs locally. Nothing passes through our servers unless you subscribe to a cloud plan.
We don't collect telemetry, analytics, prompts, code, or usage data from local or bring-your-own-key sessions.
Your code and prompts go only to the model provider you choose — or nowhere at all when you use local models.
API keys are stored locally and never sent to us.

Data the Software processes

To do its job, Lucid Train reads files, runs commands, and builds context from the repository you point it at. All of this happens on your machine. When you use a cloud model, the relevant prompt and code context are sent from your machine directly to your chosen model provider (e.g. OpenRouter and the underlying vendor, or a self-hosted endpoint). Their handling of that data is governed by their own privacy policies. When you use local models via Ollama, no data leaves your device.

Cloud account & sign-in

Lucid Cloud is optional. When you sign in with Google, we store your account email, name, and profile picture to identify your account. On a cloud plan, requests to the hosted models are routed through the Lucid Cloud proxy so we can meter usage against your allowance and bill you; we retain the usage metadata needed for metering and billing, not the contents of your code. Payments are handled by Dodo Payments — we do not store your card details. Local and bring-your-own-key usage never passes through our servers.

Credentials

API keys you enter are written to your local Lucid Train configuration directory or the OS keychain, and used only to authenticate requests to the corresponding provider. We neither receive nor store your keys.

Update check

On startup the Software may make a single network request to check whether a newer version is available. This request does not include any personal data or usage information beyond what is inherent to an HTTP request (such as your IP address, as seen by the package registry). You can disable it entirely by setting LUCID_NO_UPDATE_CHECK=1, or point it elsewhere with LUCID_UPDATE_URL.

This website

This site is static content hosted on Vercel. Vercel may process standard server logs (including IP addresses) as a data processor; see Vercel's privacy documentation. We do not add analytics or tracking cookies. LUCIDTRAIN PRIVATE LIMITED may update this section if that changes.

Children

The Software is not directed to children under 13 and we do not knowingly collect their data.

Changes

We may update this policy; material changes will be reflected by a new effective date.

Contact

Privacy questions: arnab@lucidtrain.com.