Before you make an expensive business decision,
find out what you're missing.
Mastermind gives you a panel of AI advisors — risk, cost, legal, marketing, technical and more — that analyze your decision, argue it out where they disagree, and hand you a clear decision brief. Not a verdict. A second (and third, and fourth) opinion, on demand.
Get Started FreeHow it works
Describe your decision
A hiring call, a contract, a pricing change, a big purchase — whatever you're weighing, with whatever numbers or details you have.
The panel analyzes and debates
Each advisor gives their independent take, then challenges the others where they disagree — nobody just agrees to be agreeable.
You get a decision brief
Key assumptions, where the panel agreed and disagreed, the biggest risk and opportunity, what's still missing, and concrete questions to answer before you act. You decide — the panel just makes sure you're not missing something obvious.
Record it, check back later
Note what you expect to happen. Mastermind reminds you to check back — and compares what actually happened against the original assumptions, so you get sharper over time.
What it's for
Free vs Pro
Free
Open to everyone, no cost, ever.
- Up to 3 advisors per meeting
- Single-round analysis
- Full chat with your panel
- Decision recording & 90-day review
Pro (invite only)
Ask for access once you're hooked.
- Full advisor panel, any size
- Cross-critique round (advisors challenge each other)
- Premium models (Claude, GPT, Gemini)
- Downloadable PDF reports & slide decks
Getting started, once you sign up
- Create a project (e.g. the name of the decision, client, or business area).
- Pick your advisors — grouped by strategy, finance, legal, marketing, technical.
- Describe the decision and any context, and convene the panel.
- Read the decision brief, chat with the panel about anything unclear, and record what you decide.