From your first probability forecast to climbing a leaderboard, here is the practical walk through of Metaculus, the free community forecasting platform that runs on accuracy rather than money.
To use Metaculus you create a free account, open a question, and submit a probability forecast that you can update over time. Metaculus is a community forecasting platform, not a money exchange. It uses reputation points, and you do not deposit or withdraw funds on the core platform. Some tournaments pay cash prizes under their own rules. This is general information, not advice.
To use Metaculus you sign up for a free account, find a question that is still open, and submit your estimate of how likely an outcome is. You can revise that estimate as often as you like while the question stays open. Metaculus aggregates everyone's forecasts into a community prediction and scores you on accuracy once the question resolves, awarding reputation points rather than money. There is no buying, selling, deposit, or withdrawal on the standard platform, which makes it a low pressure place to practise forecasting before any money is ever involved.
It helps to be clear about what Metaculus is, because it is often grouped with prediction markets but works differently. On a prediction market you buy and sell contracts for money, and the price is the implied probability. On Metaculus you do not trade anything. You submit a probability estimate on an open question, the platform combines many forecasters into a community median, and you are scored later on how accurate you were. The standard platform is free, with no fees, no subscription tiers, and no money held or paid out.
Questions on Metaculus go well beyond simple yes or no. The platform supports binary questions, numeric ranges and full distributions, date questions, and conditional questions that ask what happens if some other event occurs first. That range lets you express nuance that a binary contract cannot, for example a full distribution over where a figure might land rather than a single threshold. Because nothing is at financial stake on the core platform, the incentive is reputation and a track record, not a payout.
That difference matters for how you should treat it. Metaculus is a strong tool for learning to think in probabilities and for following a well reasoned community view, and the community forecast has a respected track record. It is not a place to put money to work, and a community estimate is still an estimate that can be wrong.
First, create a free account with an email address. There is nothing to fund and no payment details to enter for the standard platform, which is part of why it is a comfortable place to start.
Next, browse the open questions and pick one you have a view on or want to learn about. Open it and read the resolution criteria carefully. This is the most important habit on any forecasting platform. The criteria tell you exactly what counts as the outcome, the source that decides it, and the date, and a forecast only means something against that precise definition. Once you understand the question, submit your estimate. For a binary question you set a probability. For a numeric question you set a range or distribution that captures where you think the answer will fall.
Finally, revisit and update. As news arrives you can change your forecast as many times as you like while the question is open, and updating thoughtfully is part of good forecasting rather than a sign of indecision. The system rewards committing to a view, then refining it as the picture changes.
Metaculus scores you on accuracy using a log based system that is strictly proper, which is a technical way of saying that your best strategy is simply to report what you genuinely believe. There is no gain from gaming it by stating a more extreme number than your true view. You are scored against a baseline such as the community forecast, and forecasting earlier can earn a time related benefit, which rewards taking a position before the consensus forms. Scores accumulate into reputation points and leaderboard standings rather than a cash balance, so the reward is a visible, durable track record of how calibrated you are.
Because the standard platform involves no money, Metaculus is broadly available and free to join. Tournaments that carry cash prizes are run separately and governed by their own rules, including eligibility, so read the specific tournament page before entering one. If you want to understand how the probabilities you practise here translate into markets where money is at stake, our learning resources and platform comparisons are the place to go next.
Metaculus is a free way to practise forecasting. When you want to understand the money based venues, compare the platforms available where you live and read how the prices work first.
Get The Forecast, our plain language brief on prediction markets, platform changes, and shifting legality. One email, no tips, no hype.
The value of Metaculus is the discipline it teaches. Because nothing is at financial stake, you can forecast widely, see where you were overconfident, and watch your calibration improve over time. Treat each resolution as feedback rather than a win or a loss, and pay attention to the questions you got confidently wrong, since those reveal the most. A long, honest record on Metaculus is worth more than a lucky streak.
Be careful about carrying habits from here straight into markets where money is at stake. The absence of financial risk changes how it feels to be wrong, and a community forecast that looks authoritative can still miss. If you later move to a money based venue, the same care over resolution rules, calibration, and the cost of being wrong applies, only now with real consequences. Practise the thinking here, then respect the difference.
The standard Metaculus platform involves no deposits and no financial risk, which is part of what makes it a good place to learn. Tournaments with cash prizes follow their own rules, and money based prediction markets elsewhere can lose you money. If you move to a venue where money is at stake, risk only what you can afford to lose, never chase a loss, and never use borrowed money. In the United States, free, confidential support is available by calling or texting 1 800 GAMBLER or visiting ncpgambling.org.
No. The standard Metaculus platform is free and uses reputation points rather than money. You do not deposit funds and there is no financial payout on the core platform. Some tournaments offer cash prizes, and those are governed by their own separate rules. This is general information, not advice, current as of June 2026.
Create a free account, open a question that is still accepting forecasts, and submit your estimate. For a binary question that is a probability between zero and one hundred percent. For a numeric question you submit a range or distribution. You can update your forecast as often as you like while the question is open.
Metaculus uses a log based, strictly proper scoring system, which means your best strategy is to report what you actually believe. You are scored on how accurate your forecast was relative to a baseline, and forecasting earlier can earn a time related benefit. Scores feed reputation points and leaderboards rather than a cash balance.
A prediction market lets people trade contracts for money, and the price reflects an implied probability. Metaculus is a community forecasting platform where people submit probability estimates that are aggregated into a community prediction, with no buying or selling and no money on the core platform.
Entering and forecasting is free. Some tournaments are sponsored and pay a prize pool to forecasters based on accuracy and participation, divided according to the tournament rules. Read the specific tournament page for its terms, eligibility, and how any prize is awarded.