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Best AI Company: past results & live odds

Best AI Company is a monthly series of prediction markets listed on Polymarket. This page tracks the event trading now, the results of the last 10 that resolved — with the odds the market gave the winner 24 hours before close — and how often the favorite of that moment actually won. Over the last 10 resolved events where the price history proves who the favorite was 24 hours before close, the favorite won 10 of 10 (100%), priced at >99% on average.

Trading now

Which company has the best AI model end of October?

Google 73% · Anthropic 26% · OpenAI 1% — resolves Oct 31, 2026 · $2.1M traded

Recent results

EventResolvedWinnerWinner's odds 24h beforeFavorite 24h before
Which company has the best AI model end of September?Sep 30, 2026Anthropic>99%Anthropic >99% — won
Which company has best AI model end of August?Sep 28, 2026Anthropic>99%Anthropic >99% — won
Which company has best AI model end of July?Jul 31, 2026Anthropic>99%Anthropic >99% — won
Which company has best AI model end of June?Jun 30, 2026Anthropic>99%Anthropic >99% — won
Which company has the best AI model end of May?Jun 1, 2026Anthropic>99%Anthropic >99% — won
Which company has the best AI model end of April?Apr 30, 2026Anthropic98%Anthropic 98% — won
Which company has the best AI model end of March?Mar 31, 2026Anthropic>99%Anthropic >99% — won
Which company has the best AI model end of February?Feb 28, 2026Anthropic98%Anthropic 98% — won
Which company has the best AI model end of January?Feb 1, 2026Google>99%Google >99% — won
Which company has best AI model end of 2025?Dec 31, 2025Google>99%Google >99% — won

Sources: settlements and events from Polymarket's public Gamma API; odds 24 hours before close (the earlier of the scheduled end and the actual close) from Polymarket's public CLOB price history. A “—” means the price history doesn't prove it, so that event is left out of the favorite count rather than estimated.