M
Metaculus
33
Stack Score
Editorial pick✓ Verified working
Metaculus
Crowdsourced forecasting and prediction platform.
Best for
Best for strategists, researchers, and policy folks who want crowd forecasts on big questions.
At a glance
- Pricing
- free
- Setup time
- 15 minutes
- Learning curve
- easy
- Last verified
- 5/25/2026
What we love
- ✓Battle-tested forecasting platform
- ✓Forecaster track records visible
- ✓Free + API
Where it falls short
- −Forecasts on specific questions only
- −Crowd can mass-bias on hot topics
- −Niche audience
Pricing
1 tier
Free
$0
forever
- ✓All forecasts
- ✓API
Overview
Metaculus aggregates thousands of expert + amateur forecasters to predict future events — geopolitical, scientific, tech. Used by AI researchers, governments, and policy think tanks as a base rate.
Key features
- ●Crowd forecasting
- ●Calibrated Brier scores
- ●Categories: geopolitics, AI, science
- ●API + dashboards
- ●Tournament prizes
Best use cases
Decision context
Use Metaculus base rates as a sanity check on internal predictions.
Track an AI/policy question
Subscribe to specific forecasts and watch the consensus shift as new info arrives.
Integrations
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