Kalshi vs Good Judgment Open
A detailed head-to-head comparison of Kalshi and Good Judgment Open — pricing, features, and which one wins for different use cases.
Kalshi
The first CFTC-regulated event contracts exchange — legally trade on economic and political outcomes in the US
Kalshi is the only CFTC-regulated event contracts exchange in the United States, licensed after a multi-year legal process that concluded in 2023 and allowed it to offer prediction markets on election…
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 | Kalshi | Good Judgment Open |
|---|---|---|
| Settlement Mechanism | CFTC-regulated exchange | Admin resolution |
| Trading Model | Central limit order book | Forecast tournament (no money) |
| Collateral Token | USD | None (Brier score) |
| Min Trade | $1 | N/A |
| Api Access | ✓ | ✗ |
| Embeddable Odds | ✓ | ✗ |
| Geo Restrictions | US-focused (not all countries) | None |
| Market Creation | CFTC-approved only | Platform-set |
| Mobile App | ✓ | ✗ |
| Governance Token | ✗ | ✗ |
Kalshi Pricing
Kalshi
Free to trade
Free
- ✓CFTC-regulated
- ✓USD-denominated
- ✓US persons eligible
- ✓1,000+ markets
- ✓API access
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?
Kalshi is the better pick if you need cftc-regulated — legally accessible to us persons unlike polymarket. 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.