Ask about any part of an answer, without losing the thread.
Hover a paragraph, a step in a derivation, or a single formula and open a conversation about just that passage. The main chat stays exactly where you left it.
Open SonnetSign in with Google. Free to start, no card needed. Prefer an app? Sonnet for Windows.
How it works
- Side chats. Each block of a reply can hold its own persistent conversation, anchored to that exact passage.
- Made for STEM. Equations render properly and can be quoted as the formula itself, and you can type your own in an equation box.
- Your work stays yours. Every account runs in its own private workspace.
Pricing
Free
$0
- A small allowance of AI usage every month
- All features, no card needed
Pro
$20 / month
- $10 of AI usage included every month
- Any model Sonnet offers; larger models use the allowance faster
- Cancel any time, 14-day refund on your first payment
Usage is measured by what each reply actually costs, so short questions on a fast model go a long way. The allowance resets on the 1st of every month. Prices in US dollars.