Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Champions League Prediction) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
97% | 3% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| Other | 97% |
| claude-opus-4-6-thinking | 1% |
| claude-opus-4-6 | 1% |
| claude-fable-5 | 1% |
Market context
The Arena.ai Text Arena leaderboard will determine which large language model holds the top rank on 1 August 2026. The settlement relies on the Overall category ranking with style control disabled, pulling directly from the publicly accessible leaderboard at the specified timestamp. Current crowd pricing at 1% implies extreme confidence in a specific model's dominance, suggesting either a clear incumbent or a field so fragmented that no single model is favoured to lead eighteen months hence.
Historical precedent from LLM benchmarking shows that leaderboard leadership shifts when new model releases arrive or when existing models receive substantial updates. OpenAI's GPT-4 held extended periods of top-ranking status following its March 2023 release, whilst Claude's variants have periodically challenged that position following Anthropic's deployment cycles. The 1% probability reflects either that traders expect one particular model to maintain its current position with near-certainty, or that the field is sufficiently competitive that no single model is statistically favoured—a reading that would suggest the market is mispriced if genuine uncertainty exists.
Traders should monitor release schedules from major labs through 2025 and early 2026, particularly announcements from OpenAI, Anthropic, Google DeepMind, and Meta regarding new model versions. Arena.ai's evaluation methodology itself may shift if the platform updates its benchmark suite or scoring mechanisms. The eighteen-month window provides ample time for multiple model generations to cycle through, making historical leaderboard stability a weak predictor of August 2026 outcomes. Any significant architectural breakthrough or scaling advance announced in the six months preceding settlement could materially alter the leaderboard composition.
Methodology
Football-specific comparison page for Best AI model on August 1?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- Can I bet on individual matches?
- Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.
- Which sports markets are available?
- Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
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