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Which company has the best AI model end of September?

How the prediction-market book is pricing "Which company has the best AI model end of September?" right now, with a side-by-side platform comparison and zero-fee CTAs.

Anthropic 89% Company A 50% Company B 50% Company C 50% Volume: $315K Liquidity: $517K Closes: 30 Sept 2026
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Which company has the best AI model end of September?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Kalshi Fees) Pick
polygram.ink (preferred broker)
89% 11% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Place a position →
Polymarket (direct)
polymarket.com
89% 11% 0% Geo-blocked in US/UK/EU USDC, on-chain Place a position →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Place a position →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Place a position →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Place a position →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
Anthropic89%
Company A50%
Company B50%
Company C50%
Company D50%
Company E50%
Company F50%
Company G50%
Company H50%
Company I50%
Company K50%
Other50%
OpenAI4%
Google3%
SpaceXAI2%
Meta1%
Alibaba0%
Moonshot0%
Baidu0%
Z.ai0%
Xiaomi0%
DeepSeek0%
Amazon0%
ByteDance0%
Nvidia0%
Thinky0%
MiniMax0%
Mistral0%
Meituan0%
Tencent0%
StepFun0%
Microsoft0%

Market context

Traders on decentralised prediction markets give 89% probability to which company has the best ai model end of september?. 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…

Methodology

We track Which company has the best AI model end of September? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?
Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi Fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
How does resolution work?
Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
What's the difference between YES and NO shares?
A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
How fast are USDC deposits?
Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
Do I need to KYC for this market?
On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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