Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
93% | 7% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
93% | 7% | 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 |
|---|---|
| October 31 | 93% |
| September 30 | 87% |
| September 15 | 50% |
| August 31 | 25% |
| August 15 | 3% |
Market context
OpenAI has already said Astra exists as its next major model, but it has not given a public release date or confirmed how the model will be packaged for users. The current 4% crowd price implies traders think a public launch before 31 October is possible but still unlikely, which fits a market where the only hard fact is the August disclosure and the rest is timing inference rather than commitment.[3][9][12][18]
The closest comparables are earlier OpenAI rollouts that moved from research preview to public access only after a visible staging period, and Astra appears to sit in that same pattern rather than a fast, same-week launch. Reporting around the August announcement also suggests a review or safety gate could be part of the path to release, with some outlets inferring September as the earliest plausible public window; that is not an official timetable and should be treated as a working estimate, not a promise.[1][8][14]
For catalysts, the key watch-points are any follow-up OpenAI post, product naming decision, and whether access is first limited to ChatGPT, the API, or a smaller preview group before general availability. Reuters-style coverage was not available in the search set, but recent reporting indicates there is no confirmed release date, while a separate Axios piece on 7 August said OpenAI had slowed Astra’s release over cybersecurity concerns, which would push the schedule further into the autumn if accurate.[6][12][18]
Methodology
Sports-specific comparison page for OpenAI’s Astra released by…?. 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 or Manifold.
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
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- 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.
- 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.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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