According to AlphaMoat, as of 2026-09, the Chrome extension Lumi AI Assistant has 30 users (-14.3% MoM), rated 5 (2 reviews) — ranked #6,522 of 9,324 AI browser extensions, and #1,651 of 2,418 in General AI.
Lumi: Get instant AI-powered explanations, summaries, and key takeaways from any text or link on the web. Lumi helps you understand complex information faster exactly where you read it. Select text on any website and get clear explanations, concise summaries, key takeaways, translations, or definitions directly on the page without switching tabs or opening extra panels. Install Lumi to save time, reduce context‑switching, and keep focus. The on‑page bubble is simple and discreet, results arrive quickly thanks to smart caching and multiple AI providers, and your privacy is respected because only the text you select is processed. Using Lumi is effortless. Select any passage to open the on‑page bubble with actions like Explain, Summarize, Takeaways, Translate, or Define. Double‑click a word for an instant definition. Manage your account and settings from the extension popup. Privacy matters. Lumi does not collect your browsing history, and communication is secured over HTTPS. Privacy Policy: https://lumi-chrome-extension-production.up.railway.app/privacy
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+ CompareData month: 2026-09 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.