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How smart people make smart decisions.

Organize your thoughts. Weigh the real options. See how each plays out.

Messy, half-formed thoughts are welcome — for example: I've read so many washer-dryer reviews they've stopped meaning anything. I just want to pick the right one and be done.

Free during beta.

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Built on proven decision science.

Taught atHarvardMIT
Used by teams fromAmazonAirbnbZillow

Why your decisions are better here

It’s not a chat window.

ChatGPT agrees with you. Is that what you really want with important decisions?

A chat windowSwizzl
Asks before answeringnoyes
Organizes scattered thoughtsnoyes
Pushes backnoyes
Helps you play it outnoyes
Surfaces what's most importantnoyes
Gives you an immediate answeryesno

If all you want is a fast answer, a chat window is great. Swizzl is for the calls you have to live with.

How we think — the method in detail →

From the first users

Decisions that got made.

Everyone kept telling me 'you'll know when you know.' I didn't know. Swizzl asked what I was actually afraid of — and the honest list wasn't about him, it was about being 34 and starting over. I ended it, and I was sad — but I wasn't confused. Those turn out to be different things.
Kate · ending a four-year relationship
I was ready to sue. Swizzl played out the year ahead if I won: lawyer letters, maybe $6k back on a $19k job, and the fight running in my head every weekend. Seeing it laid out, I settled for him fixing the drainage instead. Best loss I ever took.
Tom · deciding whether to sue his contractor
When my boss asked how I'd landed on it, I walked her through it in two minutes. That's never happened before.
Priya · choosing between two strategies for next year
I'd re-prompted ChatGPT twenty times and it agreed with every version of my anger — I was going in circles. Swizzl pushed back instead: what did I want this friendship to be in five years? I sent a different text than the one I'd drafted. We're OK now. Not perfect. OK.
Jen · a falling-out with her oldest friend

Messy, half-formed thoughts are welcome — for example: I've read so many washer-dryer reviews they've stopped meaning anything. I just want to pick the right one and be done.

Free during beta.