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

Platform comparison

Active sub-markets

Market context

The real-world event hinges on which firm secures the top Chatbot Arena rank for text models with style control enabled by 30 June 2026, 12:00 PM ET, a threshold currently implied at just 2% probability for the YES outcome. This settlement relies on the official "Leaderboard" tab under the Text Arena | Overall column at lmarena.ai, where models are ordered by rank and, if tied, by Arena score.

Historical precedents show that early leaderboard dominance rarely persists through mid-term checkpoints; Anthropic’s Claude Fable 5 currently leads the June 2026 composite index at 100/100 across 357 models, yet prior cycles reveal frequent rank volatility as new architectures emerge [1][9]. Comparable cases from 2024–2025 demonstrate that firms with initial top positions often lose ground by Q3 due to rapid iteration by competitors, framing the current 2% probability as a rational market assessment of sustained leadership risk.

Traders must monitor upcoming model release schedules from major labs, particularly any announcements tied to style-control optimisation, as dependencies on inference speed and MMLU Pro benchmarks directly influence final rankings [1][5]. A recent update from the LMSYS Org confirms daily auto-updated snapshots of all Arena leaderboards, ensuring real-time transparency but also amplifying the impact of sudden score shifts [2][7]. For accessibility, German GlüStV implications and US CFTC reach define regulatory boundaries, while the "no-KYC up to $1,500" provision allows UK-based participants to engage without identity verification, provided transactions remain within the stipulated limit.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote (Polymarket), four reference venues with their key attributes, and a single execution path — every trade button routes to Polymarket KYC UK, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

On Polymarket KYC UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket KYC UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.