Built to make you extraordinarily productive, Calcbird is the best way to forecast with confidence.

Trusted every day by millions of professional analysts.

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The new way to build forecasts.

"It was night and day from one batch to another, adoption went from single digits to over 80%. It just spread like wildfire, all the best analysts were using Calcbird."

DH

Diana Hu

General Partner, Y Combinator

"The most useful forecasting tool that I currently pay for, hands down, is Calcbird. It's fast, autocompletes when and where you need it to, handles dependencies properly, sensible keyboard shortcuts, everything is well put together."

S

Jake

Creator of super/ui

"The best forecasting applications have an autonomy slider: you control how much independence to give the model. In Calcbird, you can do scenario completion, targeted edits, or you can let it rip with the full autonomy agentic version."

DC

David Car

CEO, Super Labs