Cookie Policy
How cookies and similar technologies are used on ling-1t.ai
2025/06/23
Last updated: June 23, 2025
1. Purpose of this Policy
This Cookie Policy explains how the Ling-1T AI service available at https://ling-1t.ai ("Ling-1T AI", "we", "us") uses cookies and similar technologies on our public website, documentation, console, and API tooling (collectively, the "Services"). Ling-1T AI operates a hosted deployment of the open-source Ling-1T model; we are not affiliated with or acting on behalf of the model's original authors. This policy supplements our Privacy Policy and is drafted to comply with the EU ePrivacy Directive, the General Data Protection Regulation (GDPR), the UK GDPR, the California Consumer Privacy Act (CCPA), and comparable international regulations.
2. Cookies and Similar Technologies
- Cookies: Small text files placed on your device when you visit online properties. Cookies may be first-party (set by us) or third-party (set by service providers).
- Local / Session Storage: Key/value data stored in your browser for stateful functionality (e.g., theme preference, autosave).
- Pixels / Web Beacons: Transparent graphics that log page engagement; we use them sparingly for diagnostics.
- SDK-based identifiers: Generated for secure authentication or anonymised telemetry.
These tools enable us to deliver core functionality, secure accounts, remember your preferences, measure service quality, and honour contractual commitments.
3. Cookie Categories in Use
| Category | Description | Legal Basis | Typical Retention | Examples |
|---|---|---|---|---|
| Strictly Necessary | Required for authentication, security, load balancing, and consent storage. | Legitimate interest / Contract | Session to 12 months | ling1t_session, ling1t_csrf, __Secure-next-auth.session-token, next-intl-locale, cookie-preferences |
| Functional | Optional cookies that enhance usability (e.g., theme, autosave). | Consent | Up to 12 months | ling1t_theme, canvas_autosave, ui_preferences |
| Performance & Analytics | Aggregated telemetry to improve reliability. No personal identifiers collected. | Legitimate interest (opt-out honoured) | 24 hours – 13 months | _pa_session, _pa_user, plausible_ignore |
| Communications / Marketing | Used only if you sign up for updates (e.g., email delivery tracking). | Consent | Up to 30 days | resend_tracking, newsletter_preferences |
We do not use advertising or behavioural targeting cookies.
4. Detailed Cookie Register
4.1 Strictly Necessary (No consent required)
| Cookie | Purpose | Retention | Set By |
|---|---|---|---|
ling1t_session | Maintains authenticated sessions in the console. | Session | Ling-1T AI |
ling1t_csrf | Protects account actions against cross-site request forgery. | Session | Ling-1T AI |
__Secure-next-auth.session-token | Alternative session management token. | Session | Ling-1T AI |
next-intl-locale | Remembers preferred language. | 12 months | Ling-1T AI |
cookie-preferences | Stores your cookie consent selections. | 12 months | Ling-1T AI |
vrn-edge | Ensures edge routing and availability on Vercel. | Session | Vercel |
4.2 Authentication via Google or GitHub (Optional)
| Provider | Cookies | Purpose | Retention | Legal Basis |
|---|---|---|---|---|
| Google OAuth | __Secure-1PSID, APISID, HSID, SAPISID, SID | Enables and secures Google sign-in. | Up to 2 years | Contract performance |
| GitHub OAuth | _gh_sess, logged_in, _device_id, dotcom_user | Enables GitHub sign-in and device recognition. | Session – 1 year | Contract performance |
Each provider acts as an independent controller for its cookies. Review their policies: Google Privacy Policy, GitHub Privacy Statement.
4.3 Payment Processing (Creem)
| Cookie | Purpose | Retention | Legal Basis |
|---|---|---|---|
creem_session | Maintains secure checkout sessions handled by Creem (our Merchant of Record). | 30 minutes | Contract performance |
creem_checkout_state | Preserves multi-step payment flow. | Session | Contract performance |
creem_csrf | Protects payment forms from tampering. | Session | Contract performance |
creem_customer_id | Associates billing history with your account. | 12 months | Legitimate interest (billing continuity) |
Creem’s privacy notice: https://creem.io/privacy.
4.4 Functional Cookies (Opt-in)
| Cookie | Purpose | Retention |
|---|---|---|
ling1t_theme | Saves dark/light mode preference. | 12 months |
canvas_autosave | Stores in-progress diagrams. | Session |
ui_preferences | Remembers console layout, tabs, and filters. | 6 months |
4.5 Performance & Analytics
We operate self-hosted Plausible Analytics and internal dashboards; no personal identifiers are collected.
| Cookie | Purpose | Retention |
|---|---|---|
_pa_session | Measures anonymised session interactions. | 24 hours |
_pa_user | Aggregated cohort identifier. | 13 months |
plausible_ignore | Ensures your opt-out preference is respected. | Permanent |
4.6 Communications / Marketing (Opt-in)
| Cookie | Purpose | Retention |
|---|---|---|
resend_tracking | Tracks delivery and engagement for transactional/marketing emails. | 30 days |
newsletter_preferences | Stores newsletter topics you selected. | 12 months |
5. Managing Your Choices
5.1 On-Site Controls
- The cookie banner appears on first visit, allowing you to accept strictly necessary cookies or enable additional categories.
- You can update your preferences anytime via the “Cookie Settings” link in the footer or at https://ling-1t.ai/cookie-settings.
- Your selections are saved in the
cookie-preferencescookie and applied immediately.
5.2 Browser-Level Controls
You can block or delete cookies in your browser settings:
- Chrome:
chrome://settings/siteData - Firefox:
about:preferences#privacy - Safari: Preferences → Privacy → Manage Website Data
- Edge:
edge://settings/content/cookies
Blocking strictly necessary cookies may impair login, billing, or AI workflow features.
5.3 Withdrawing Consent
You may withdraw consent for optional cookies by updating preferences, clearing your browser cookies, or contacting [email protected]. Withdrawal will not affect the lawfulness of processing before the withdrawal.
6. International Data Transfers
Cookies set by our processors (e.g., Google, GitHub, Creem, Vercel) may involve transfers to the United States, Singapore, Estonia, or other jurisdictions. We rely on Standard Contractual Clauses or other recognised safeguards to protect your information.
7. Changes to this Policy
We may update this policy to reflect changes in technology, regulation, or our Services. Material updates will be communicated via the cookie banner or console notices. The “Last updated” date indicates the latest revision.
8. Contact
Questions or requests can be sent to:
- Email: [email protected]
- Postal: Ling-1T AI Privacy, 20 Anson Road, #11-01, Singapore 079912
You may also lodge a complaint with your local supervisory authority if you are located in the EU/EEA/UK.