Polymarket vs. Kalshi

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See where the two biggest prediction markets disagree. Pick any two markets, or start from the biggest gaps below: prices, volume, history and the resolution rules, side by side.

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Polymarket

Will xAI have the best AI model at the end of December 2026?

1% – 0.1pt

Vol $1.8K today · $186.5K total

Market B

Possibly the same event, on the other platform

Kalshi Which country will have the best LLM at the end of the decade? 30% Kalshi Best LLM at the end of the decade? 12% Kalshi Best LLM at the end of the decade? 3% Kalshi Best LLM at the end of the decade? 7% Kalshi Best LLM at the end of the decade? 1% Kalshi Best LLM at the end of the decade? 15%

Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.