Manifold Markets vs Good Judgment Open
A detailed head-to-head comparison of Manifold Markets and Good Judgment Open — pricing, features, and which one wins for different use cases.
Manifold Markets
Permissionless prediction market platform where anyone can create markets on anything
Manifold Markets is a permissionless prediction market platform where any user can create a binary, multiple-choice, free-response, or numeric market on any topic in under 60 seconds — no coding requi…
Full review →Good Judgment Open
The public forecasting tournament from the Superforecasting researchers
Good Judgment Open is the public forecasting platform run by Good Judgment Inc., the organisation born out of the research that produced the concept of 'Superforecasters' — ordinary people who, with t…
Full review →Feature Comparison
| Feature | Manifold Markets | Good Judgment Open |
|---|---|---|
| Settlement Mechanism | Manual creator resolution | Admin resolution |
| Trading Model | CFMM (CPMM) | Forecast tournament (no money) |
| Collateral Token | Play money (Mana) / Sweep | None (Brier score) |
| Min Trade | M$10 (~free) | N/A |
| Api Access | ✓ | ✗ |
| Embeddable Odds | ✓ | ✗ |
| Geo Restrictions | None (sweepstakes mode) | None |
| Market Creation | Permissionless | Platform-set |
| Mobile App | ✓ | ✗ |
| Governance Token | ✗ | ✗ |
Manifold Markets Pricing
Manifold Markets
Free
Free
- ✓Unlimited market creation
- ✓Play-money (Mana)
- ✓Sweepstakes real prizes
- ✓API access
- ✓Embeds
- ✓Mobile app
Manifold Markets
Manifold for Business
Custom
- ✓Private internal markets
- ✓Custom branding
- ✓Team analytics
- ✓Dedicated support
Good Judgment Open Pricing
Good Judgment Open
Free to trade
Free
- ✓Forecasting tournament
- ✓Geopolitics/economics/science questions
- ✓Brier-score accuracy tracking
- ✓Superforecaster methodology
- ✓Free to participate
Verdict: Which Should You Choose?
Manifold Markets is the better pick if you need fully permissionless — create any market on any topic in under 60 seconds. Good Judgment Open wins when backed by the research behind superforecasting. Both are production-ready — the right choice depends on your team's workflow and budget.