Last updated: March 25, 2026
ChatGPT Lightspeed does not collect, store, or transmit any user data. Everything runs locally in your browser.
ChatGPT Lightspeed optimizes the performance of long ChatGPT conversations by reducing the number of page elements your browser renders. No data leaves your browser during this process.
This extension collects no data.
storage — Saves your preferences locally in your browseractiveTab — Detects whether you're on a ChatGPT tabhost_permissions (chatgpt.com) — Required to run the optimization on ChatGPT pageshost_permissions (extensionpay.com) — Required for license verification for paid usersThe only external service the extension communicates with is ExtensionPay (extensionpay.com) for payment license verification. This does not include any conversation data.
All settings are stored locally in your browser. No data is stored on external servers.
Any changes will be posted here with an updated date.