Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
52% | 48% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
52% | 48% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 52% | |
| Anthropic | 44% |
| OpenAI | 2% |
| Alibaba | 0% |
| Z.ai | 0% |
| xAI | 0% |
| DeepSeek | 0% |
| Moonshot | 0% |
| Mistral | 0% |
| Meituan | 0% |
| Microsoft | 0% |
| Meta | 0% |
| Amazon | 0% |
| Baidu | 0% |
| ByteDance | 0% |
| Company A | 0% |
| Company B | 0% |
| Company C | 0% |
| Company D | 0% |
| Company E | 0% |
| Company F | 0% |
| Company G | 0% |
| Company H | 0% |
| Company I | 0% |
| Company K | 0% |
| Other | 0% |
Market context
The market hinges on which firm secures the top spot on the Chatbot Arena’s dedicated Math leaderboard by 31 July 2026, a metric determined by human voting rather than static benchmarks. Current pricing at 52% implies a slight edge for Anthropic, whose claude-opus-4-6-thinking model already holds the #1 Math rank with an Elo of 1518 as of mid-2026[3]. This mirrors historical patterns where early leaderboard dominance in specialised domains like coding or math often persists through release cycles, though the +407 Elo point gain in top scores since 2023 suggests rapid volatility remains possible[3].
Traders should monitor Anthropic’s scheduled model declarations and OpenAI’s GPT-5.4-high updates, which currently sits #2 in Math and could overtake if new weights are released before the settlement window[1]. The primary catalyst is the next major version drop from either firm, as leaderboard ranks shift immediately upon new model integration and voting influx[1]. Recent composite quality indices show Anthropic’s Claude Fable 5 leading overall, but Math-specific Elo remains the decisive factor, making the timing of the next “thinking” variant launch critical[2]. Watch for any campaign-finance-style disclosures regarding research spend that might signal accelerated math-capability training, as these often precede leaderboard jumps.
Methodology
This page tracks Which company has the best Math AI model end of July? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.
Resolution & payout
Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.
Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.
FAQ
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Can prediction markets influence election outcomes?
- Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.
- Are political prediction markets legal in my country?
- It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.
- Which political events have the biggest volume?
- US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.
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