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Second Best AI Company: past results & live odds

Second 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 98% on average.

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Second-best AI Lab end of October?

Anthropic 65% · Google 25% · Meta 3% — resolves Oct 31, 2026 · $67K traded

Recent results

EventResolvedWinnerWinner's odds 24h beforeFavorite 24h before
Second-best AI Lab end of September?Sep 30, 2026Google93%Google 93% — won
Second-best AI Lab end of August?Sep 28, 2026Google98%Google 98% — won
Which company has second best AI model end of July?Jul 31, 2026Anthropic>99%Anthropic >99% — won
Which company has second best AI model end of June?Jun 30, 2026Anthropic99%Anthropic 99% — won
Which company has the second best AI model end of May?Jun 1, 2026Anthropic>99%Anthropic >99% — won
Which company has the second best AI model end of April?Apr 30, 2026Anthropic98%Anthropic 98% — won
Which company has the second best AI model end of March?Mar 31, 2026Anthropic99%Anthropic 99% — won
Which company has the second best AI model end of February?Feb 28, 2026Anthropic96%Anthropic 96% — won
Which company has the second best AI model end of January?Jan 31, 2026Google98%Google 98% — won
Which company has second best AI model end of December?Dec 31, 2025Google99%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.