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Which company has the best AI model end of October? Live odds

Polymarket traders make Google the favorite for “Which company has the best AI model end of October” at 85% (−4.3 pts in the last 24 hours), ahead of Anthropic at 13%.

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Prices refresh every few minutes. Probabilities are not predictions or advice, and you can lose what you trade.

Probability over the last 30 days

The top 4 outcomes right now.

Sep 26Oct 26
GoogleAnthropicOpenAIMeta

All 21 outcomes and their odds

Probability is the share price. Decimal odds show what $1 returns if that outcome wins, before fees. American odds show the same price as a moneyline: +150 pays $150 on a $100 stake, −200 needs $200 to win $100.

Odds as of

Show all 21 outcomes

Where this market stands

“Which company has the best AI model end of October” is a Polymarket event with 21 open outcomes. Google leads at 85%, ahead of Anthropic at 13%. Google is down 4.3 points over the last 24 hours and up 15 points over the past week. Traders have put $3.6M through the event so far, including $146K in the last 24 hours, and it is scheduled to end on October 31, 2026.

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How this market resolves

This market will resolve according to the company which owns the model which has the highest arena rank based on the arena.ai Text Arena (Overall) when the table under the "Leaderboard" tab is checked on October 31, 2026, 12:00 PM ET.

Results from the "Rank" column under the "Text Arena | Overall" Leaderboard tab at https://arena.ai/leaderboard/text/overall-no-style-control with style control off (Adjustments: None) and filtered for "Models" will be used to resolve this market.

Note: Models marked “AutoEval” at the applicable check time will not be considered, regardless of whether they display a rank or score.

Models will be ordered primarily by their leaderboard rank at the market’s check time. If two or more models are tied on rank, they will be ordered by their Arena score, including any underlying, unrounded, granular values reflected in the data below the leaderboard. If a tie still remains, alphabetical order of company names as listed in this market group will be used as a final tiebreaker (e.g., if the two models are tied by exact arena score, “Google” would be ranked ahead of “SpaceXAI”). This market will resolve based on the company that occupies first place under this ranking.

The resolution source for this market is the arena.ai Text Arena (Overall). If this resolution source is unavailable at check time, this market will remain open until the leaderboard comes back online and will resolve based on the first check after it becomes available. If it becomes permanently unavailable, this market will resolve to "Other".

Rules are written by Polymarket and shown as published. WhaleSays does not settle markets.

Common questions

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Who is the favorite in Which company has the best AI model end of October?
Google is the favorite at 85%, followed by Anthropic at 13% and OpenAI at 1%. Prices are the market's implied probabilities and update as traders buy and sell.
Will Google have the best AI model at the end of October 2026?
Polymarket traders give Google a 85% chance, which is decimal odds of 1.17 (American −576): $1 staked on Google returns about $1.17 if it resolves Yes, before fees. In the last 24 hours the price moved down 4.3 points.

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