Trade: Which company has the #2 AI model end of June? (Style Control On)

Market context

The Chatbot Arena leaderboard, maintained by LMSYS at UC Berkeley, ranks large language models through head-to-head comparative evaluation with style control enabled. This market settles on which company owns the second-ranked model on 30 June 2026. The current order book on Polymarket prices this outcome at 6% implied probability, reflecting substantial uncertainty about which organisation will hold the #2 position in eighteen months.

Historical leaderboard dynamics show considerable volatility in rankings outside the top tier. Whilst OpenAI, Anthropic and Google have consistently occupied leading positions, the #2 slot has shifted between their offerings and competitors' models as new releases arrive. The gap between #1 and #2 rankings typically narrows when challengers release capable models, but the leaderboard's methodology—based on pairwise comparisons rather than fixed benchmarks—means rankings respond gradually to capability shifts. Current market pricing suggests traders assign low probability to any single company holding #2, implying expectations of either fragmented competition or consolidation at the top.

Key catalysts include scheduled model releases from major labs, with Anthropic, OpenAI and Google all expected to iterate substantially before June 2026. Leaderboard composition itself matters: the arena's user base and evaluation methodology could shift, affecting which models receive sufficient comparative data for stable ranking. Recent announcements from frontier labs emphasise scaling and reasoning capabilities, suggesting competition will intensify in the intermediate rankings where #2 positioning remains contested.

How this market resolves

Resolution is handled by the UMA optimistic oracle on Polygon. A proposer submits the outcome, a two-hour dispute window opens, and if no one stakes a counter-claim the payout is final. Contested outcomes escalate to UMA token-holder voting. Payouts clear in USDC to the winning side.

How to trade this market step by step

The mechanics for trading "Which company has the #2 AI model end of June? (Style Control On)" are the same as any other PolyGram event contract. Each YES share resolves to $1 if the event happens, or $0 if it doesn't. The current price between 0¢ and 100¢ is the market's probability estimate, set live by the order book.

1. Sign in on polygram.ink with your email — no full KYC under $1,500 lifetime trading volume.
2. Deposit USDC on Polygon (lowest fees, ~$0.01 per transaction) or Ethereum. Funds credit after 12 confirmations.
3. Pick a side. Buy YES if you believe the event will happen; buy NO if you think it won't. The current YES price reflects the market's collective probability.
4. Size your position. If you stake 100 USDC at 50% YES, you'll receive shares that pay $200 if YES resolves true — a 100% gross return. If NO resolves, your shares are worth $0.
5. Set risk controls (optional). Stop-loss, take-profit, and limit-order types all supported. Use the trade ticket's slippage box to cap your maximum entry price.
6. Wait for resolution. When the event resolves on-chain via the UMA optimistic oracle, the winning side settles to 100¢ automatically and USDC hits your balance within seconds. Withdrawable to any wallet you control.

How active is this market?

$2K in lifetime turnover and $29K of resting liquidity puts this market in the below the median by volume for ai contracts on PolyGram. Order-book depth is strong — order books support five-figure trades with single-cent slippage.

Last 24 hours alone saw $36 in turnover, consistent with the market's lifetime daily-average pace.

The market has been open for under a month — fresh enough that information asymmetry remains a real factor.

Higher-volume markets tend to have tighter spreads and faster price discovery — meaning the displayed YES/NO percentages are more likely to reflect the true crowd-implied probability rather than a single trader's directional view.

Key terms

YES / NO share

A binary outcome token that pays $1.00 if the underlying claim resolves true (YES) or false (NO), and $0 otherwise. The market price between 0¢ and 100¢ is the implied probability.

CLOB

Central limit order book. The matching engine that pairs YES buyers with NO buyers (effectively the same trade). Polymarket's CLOB on Polygon executes trades on-chain via the conditional-tokens framework.

Liquidity

USDC capital sitting in resting limit orders inside the order book. Deeper liquidity means smaller slippage on large trades and a tighter bid-ask spread.

UMA optimistic oracle

The on-chain dispute system that settles each Polymarket market. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution.

Slippage

The difference between the displayed mid-price and your fill price. Affects market orders most; limit orders avoid slippage but may take time to fill.

Conditional token

ERC-1155 outcome share issued by Gnosis Conditional Tokens on Polygon. The token type that resolves to $1.00 or $0.00 at settlement.

See the full prediction-market glossary →

Frequently asked questions

Risk and regulatory note

Prediction-market positions can lose 100% of staked capital. Outcomes are uncertain by definition — historical accuracy of crowd-implied probabilities is high in aggregate but not for any single market. PolyGram does not provide investment advice. Trade only with capital you can afford to lose.

Regulatory status varies by jurisdiction. Germany, the United States, and most EU countries treat Polymarket-style event contracts under one of three frameworks: financial derivative, gambling product, or unregulated novel asset. Consult local counsel before trading.

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