Metaculus Review
4.2Not a market — a rigorous forecasting platform with the best long-range questions.
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Key facts
- Type
- Forecasting platform
- Founded
- 2015
- Fees
- Free; cash prizes in tournaments
- Minimum deposit
- None
- Payments
- No deposits — tournament prize payouts only
- Availability
- Worldwide
Our scores
What we like
- Rigorous question writing and resolution criteria
- Best-in-class long-range questions on AI, science, and geopolitics
- Track-record scoring builds a verifiable forecasting résumé
- Cash tournaments let strong forecasters earn without betting
What could be better
- Not a market — you can’t trade against prices or take positions
- Feedback loops are slow on long-horizon questions
- Community aggregate can be sticky and slow to update vs markets
A different model
Metaculus aggregates probabilistic predictions from thousands of forecasters and scores them against outcomes — no order book, no positions. Its strength is question quality: resolution criteria are precise, horizons stretch years out, and topics like AI timelines get treatment no real-money market can sustain.
Track records and tournaments
Every forecast you log builds a public track record under proper scoring rules — increasingly useful as a credential in research and policy circles. Sponsored tournaments pay real cash to top performers, making Metaculus the rare place where forecasting skill alone (not bankroll) earns money.
How it complements markets
We treat Metaculus as a second opinion: when its community forecast diverges sharply from Polymarket or Kalshi prices, one side is usually missing something. For long-horizon questions where market liquidity dries up, Metaculus is often the only credible signal available.
Our verdict
Metaculus is where you go to become a better forecaster rather than to trade. Its aggregated community predictions on AI and science are reference-grade, and tournaments offer real prize money for skill instead of capital.
Best for: Forecasters who care about accuracy, science, and long time horizons
Some links on this page may be referral links — see our disclosure.