Forecasting Platforms / RESEARCH PROFILE
Metaculus
A public forecasting platform where users submit probability forecasts, follow community aggregates, participate in tournaments and track their scoring.
Source check
Oct 8, 2026
OUR TAKE / EDITORIAL OPINION
Metaculus is useful when disagreement stays visible
A community forecast should be the beginning of a question about assumptions.
Metaculus offers community probability forecasts, tournaments and scoring; its API requires authentication and places restrictions on commercial and AI/ML data use. This listing concerns the community forecasting platform, rather than the separate Radiant product. Our judgment is that its most useful role is as a structured place to compare expectations. We would resist turning a community number into an unexplained authority simply because it is easier to quote than the reasoning behind it.
We would consider Metaculus for someone who wants to formulate a forecast, revisit it and examine how their view differs from other forecasters. The tradeoff to watch is a convenient aggregate versus attention to the precise question and the reasons for disagreement. A reader should ask what evidence would change their own estimate before checking whether the aggregate makes that estimate feel comfortable.
A practical evaluation would follow one clearly defined question across several updates. Keep a short log of new evidence, personal revisions and changes in the displayed community forecast, without claiming causation between them. Assess whether the workflow makes the reasoning easier to revisit. For any application that plans to reuse data, review the specific API terms first. We would choose the platform for the discipline of revisable judgment, not as a substitute for having a judgment.
AI-assisted editorial analysis based on cited documentation; not a hands-on product test.
The overview
Provides a crowd-forecasting and calibration workflow complementary to cash prediction markets; it does not operate a cash-trading prediction market.
- Company
- MetaculusSource · High confidenceOfficial page identifies Metaculus as a Public Benefit Corporation.
- Founded
- Not yet verified
- Product launch
- Not yet verified
- Headquarters
- Not yet verified
- Founding team
- Anthony Aguirre · Founder and Chairman of the BoardSource · High confidenceThe official source identifies Anthony Aguirre as Founder and Chairman of the Board.David Levine · FounderSource · High confidenceThe official source identifies David Levine as Founder.Greg Laughlin · Originating co-creatorSource · High confidenceThe official source identifies Greg Laughlin as Originating co-creator.
- Product status
- Not yet verified
Company founding and product launch are different events. Dates show only the precision supported by a source.
What is documented about AI?
This profile is scoped to community forecasting. The reviewed platform sources do not establish a built-in AI assistant for this listing; Radiant’s AI modeling and MCP capabilities belong to its separate profile.
“No AI documented” means the checked sources do not establish an AI feature. It does not prove that the product uses no AI.
Pricing & access
Checked 2026-10-08: public-platform pricing was not established. Programmatic use is subject to separate API terms; AI/ML training or development using service content requires permission. Current authenticated API entitlements were not tested. Radiant has separate product access and terms.
Platforms: web, api
The source record5
Official product documentation reviewed. No hands-on product testing was performed.
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- Checked Oct 7, 2026