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Go off on a tangent. Without losing your place.
An AI tutor where every follow-up question gets its own branch.
The demo needs no sign-up and no AI: its replies are playful nonsense that show how branching works.
Why is the sky blue?
Rayleigh scattering violet
What’s Rayleigh scattering?
1/λ⁴
What does 1/λ⁴ mean?
Wait, why isn’t the sky violet?
And why are sunsets orange?
- You ask one question.
- The answer raises another. You ask it.
- Its answer raises one more.
- Wait, the first answer said violet…
- Your first answer is now 8 messages up.
- Scrolling back past what you already know…
- Now nobody could reread this. Including you.
Same questions, asked in Tangent
Why is the sky blue?
Rayleigh scattering violet
2 side questions
And why are sunsets orange?
Tap any branch to open it.
Rayleigh scattering violet
Side question · Rayleigh scattering
What’s Rayleigh scattering?
1/λ⁴
1 side question
Each question gets its own branch.
1/λ⁴
Side question · 1/λ⁴
What does 1/λ⁴ mean?
A branch of a branch. Still easy to find.
Rayleigh scattering violet
Side question · violet
Why isn’t the sky violet?
Just violet. Nothing else in the way.
What happens to your follow-up questions
In a regular AI chat, then in Tangent.
- Regular AI chatThe answer raises three more questions.
- TangentEach one opens in its own branch.
- Regular AI chatYou chase one, then another. Your first answer is now 40 messages up.
- TangentYour first answer stays exactly where you left it.
- Regular AI chatYou scroll back past what you already know and what you don’t care about.
- TangentYou see only the branch you’re on. The rest waits until you want it.
Not sure what to ask next? Full answers end with a few tangents worth following, one tap away.
More ways in
Learn, Power and Canvas share one sign-in.
Want every control?
Power mode takes your own API keys for Anthropic, OpenAI or OpenRouter, and adds context modes, the context inspector and a reviewer. Power sign in
Feeling brave?
Canvas lays out a whole conversation as a map, every branch at once. It’s experimental. Try Canvas