Frequently asked questions

predict.pm is a prediction-market intelligence platform (currently in beta) that aggregates markets from Polymarket, Kalshi and Futuur, matches the same event across platforms with AI, and compares the odds side by side so you can find the best price and arbitrage.

predict.pm works in three steps, repeated every 3 minutes: it fetches events and markets from each platform's API, an LLM groups the same real-world event across platforms, and the model aligns each outcome so the prices line up in one side-by-side comparison.

Unlike a simple directory of links, predict.pm ai event matching — predict.pm groups the same real-world event across platforms, not just a directory of links. outcome-level alignment — equivalent outcomes line up across platforms so probabilities are directly comparable. best-price and arbitrage discovery straight from the side-by-side view. odds and markets refresh every 3 minutes. independent, neutral and free to use — predict.pm compares odds, it does not accept bets or hold funds.

An event is one real-world question — like an election or a game — grouped across every platform that lists it. An event aggregates markets.

A market is a single tradable question on a prediction platform. The market is where the probability (price) lives. Equivalent markets from different platforms are grouped under one event.

An outcome is one possible result of a market — such as Yes/No, or a specific candidate or team. Each outcome carries a probability, and predict.pm aligns the equivalent outcome across platforms.

Event matching groups the same real-world question across platforms into one event. Outcome matching then aligns each market's outcomes so 'Yes' on one platform maps to 'Yes' on another and the prices are directly comparable.

Within a matched event, an LLM aligns each market's outcomes across platforms so equivalent outcomes (e.g. the same team winning) sit in one row and their probabilities can be compared directly.

predict.pm lines up the same outcome across Polymarket, Kalshi and Futuur, so when one platform prices it lower than another, the gap is visible at a glance — letting you buy where it's cheap.

Polymarket (USDC, global), Kalshi (US dollars, US/CFTC-regulated) and Futuur (play and real money; $20 free for new users).

Yes. Comparing odds on predict.pm is completely free. New users also get $20 free to start trading on Futuur.

predict.pm fetches new markets and refreshes prices every 3 minutes.

No. predict.pm is an independent comparison tool. It shows odds across platforms and links out to them; it never accepts bets or custodies funds.

predict.pm is currently in beta — features and data are evolving.