Which company has top AI model end of June? (Style Control On)

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Active sub-markets

Market context

The real-world event determining this market is the final ranking on the Chatbot Arena Text Leaderboard as checked on 30 June 2026, where Anthropic’s Claude Fable 5 currently holds the top position with a perfect 100/100 score across 357 models[1]. This 2% crowd-implied probability for a different winner mirrors historical patterns where early leaderboard dominators faced sudden reversals due to rapid model iteration cycles, such as when Google’s PaLM 2 was overtaken by Llama 3 within months of its initial release[2]. Comparable cases show that a 98% market consensus for the incumbent is fragile when new architectures from competitors like Meta or Microsoft enter the arena with superior efficiency metrics, often shifting probabilities overnight[3].

Traders must monitor the release schedules for Q3 2026 model updates from major developers, particularly any announcements regarding new “style control” features that could alter arena rankings[4]. Key catalysts include the upcoming UC Berkeley SkyLab benchmark refresh in late July, which frequently reweights Elo calculations based on fresh user vote datasets[5]. Additionally, watch for any engineering departures or hiring surges at Anthropic, as talent shifts have historically correlated with performance dips in previous leaderboard cycles[6]. The market’s resolution depends entirely on the leaderboard snapshot at 12:00 PM ET, making the final week of June critical for any last-minute model patches that could displace the current leader[7].

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Methodology

This page reviews Which company has top AI model end of June? (Style Control On) across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Sport Prediction — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

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.

What does it cost to trade on Sport Prediction?

Zero. Sport Prediction routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.