Cassie

Highlight text on any page, then ask Cassie to explain or answer it.

Highlight help

The ON/OFF switch in Cassie's side buttons (with Snip) does the same. When it's off you can still double-tap Ctrl, or right-click → Explain with Cassie.

No key needed: Cassie answers right away. Adding your own free key below is optional: it's a little faster and you never run out of questions.

Groq API key: free (fastest answers)

Quick answers with high free limits. Stored only in this browser. Get a free key (no credit card) at console.groq.com/keys.

Google (Gemini) API key: free (works on its own too)

Answers questions and reads snips, PDFs and pictures. Stored only in this browser. Get one free with your Google account at aistudio.google.com/apikey.

Groq model

Use it on PDFs: Snip, Whole file, Board. Or highlight text, right-click → Explain with Cassie.

Ask about this page

Cassie reads the page you're viewing in this tab. No need to highlight.

Recent answers

Answers you get from highlighting will show up here.