Cookie Policy
Last Updated: June 15, 2026

# Cookie Policy – Dialetica AI

Last Updated: 2025-01-24

This Cookie Policy explains how Dialetica AI ("we", "our", or "us") uses cookies and similar technologies when you visit our website and use our services.

## 1. What Are Cookies?

Cookies are small text files that are placed on your device (computer, tablet, or mobile) when you visit a website. They are widely used to make websites work more efficiently and provide information to website owners.

## 2. How We Use Cookies

We use cookies for the following purposes:

### Essential Cookies

These cookies are strictly necessary for the website to function and cannot be disabled. They are usually set in response to actions you take, such as logging in or setting security preferences.

Examples:

- Authentication cookies: Maintain your login session
- Security cookies: Protect against unauthorized access

Legal Basis: These cookies are essential for the service to function. No consent is required, but we inform you about their use.

### Functional Cookies

These cookies enable enhanced functionality and personalization. They remember your preferences and choices to provide a better experience.

Examples:

- Preference cookies: Remember your sidebar state (collapsed/expanded)
- Chat model cookies: Remember your selected chat model preference

Legal Basis: These cookies improve your experience but are not strictly necessary. Consent is required under GDPR/LGPD.

### Analytics Cookies

These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously.

Current Status: We do not currently use analytics cookies, but we may implement them in the future with your consent.

Legal Basis: Consent is required under GDPR/LGPD.

## 3. Types of Cookies We Use

### By Duration

Session Cookies:

- Temporary cookies that are deleted when you close your browser
- Used for authentication and security

Persistent Cookies:

- Remain on your device for a set period or until you delete them
- Used for preferences and settings

### By Source

First-Party Cookies:

- Set directly by Dialetica AI
- Used for authentication, preferences, and functionality

Third-Party Cookies:

- Set by external services (e.g., Google OAuth)
- Used only for authentication flows

## 4. Specific Cookies We Use

Cookie Name | Category | Purpose | Duration | Consent Required
--- | --- | --- | --- | ---
`authjs.session-token` / `__Secure-authjs.session-token` | Essential | Authentication and session management | 7 days | No
`sidebar:state` | Functional | Remembers sidebar collapsed/expanded state | Persistent | Yes
`chat-model` | Functional | Remembers selected chat model | Persistent | Yes

## 5. Managing Your Cookie Preferences

You have several options to manage cookies:

### Cookie Consent Banner

When you first visit our website, you'll see a cookie consent banner where you can:

- Accept all cookies
- Reject non-essential cookies
- Customize your preferences

### Cookie Preference Center

You can update your cookie preferences at any time by:

1. Clicking on your user menu in the sidebar
2. Selecting "Cookie Preferences"
3. Adjusting your preferences

### Browser Settings

You can also control cookies through your browser settings:

- Chrome: Settings → Privacy and security → Cookies and other site data
- Firefox: Options → Privacy & Security → Cookies and Site Data
- Safari: Preferences → Privacy → Cookies and website data
- Edge: Settings → Cookies and site permissions → Cookies and site data

Note: Disabling essential cookies may prevent the website from functioning properly.

## 6. Impact of Disabling Cookies

### If You Disable Essential Cookies

- You will not be able to log in or maintain a session
- Some security features may not work
- The website may not function properly

### If You Disable Functional Cookies

- Your preferences will not be remembered
- You may need to reconfigure settings each visit
- Some features may be less convenient

### If You Disable Analytics Cookies

- We will not collect usage statistics
- This will not affect website functionality

## 7. Third-Party Cookies

We use Google OAuth for authentication, which may set temporary cookies during the authentication flow. These cookies are essential for the login process and are managed by Google according to their privacy policy.

## 8. Updates to This Policy

We may update this Cookie Policy from time to time to reflect changes in our practices or for legal, operational, or regulatory reasons.

- Any changes will be reflected by updating the "Last Updated" date at the top of this document
- We encourage you to review this policy periodically

## 9. Your Rights

Under GDPR (EU) and LGPD (Brazil), you have the right to:

- Be informed about cookie usage
- Give or withdraw consent for non-essential cookies
- Access information about cookies we use
- Request deletion of cookie data

## 10. Contact Us

If you have questions about our use of cookies, please contact us:

Dialetica AI
Email: us@dialetica.ai

## 11. Related Policies

- Privacy Policy
- Terms of Service