Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
92% | 8% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
92% | 8% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| December 31, 2026 | 92% |
| September 30, 2026 | 68% |
| August 31, 2026 | 25% |
| August 21, 2026 | 18% |
| August 14, 2026 | 3% |
| August 7, 2026 | 1% |
| July 31, 2026 | 0% |
| December 31, 2025 | 0% |
| March 31, 2026 | 0% |
| June 30, 2026 | 0% |
Market context
OpenAI has still not publicly released a model named **GPT-6**, and the latest concrete signal was that a model long rumoured to be the next step shipped on 23 April 2026 as **GPT-5.5** rather than GPT-6.[1][12][14] That matters for this market because a 0% crowd price implies traders see no credible path to a publicly available, explicitly named GPT-6 before year-end, especially with no official architecture, pricing, or launch date on record.[1][11][12]
The best historical frame is OpenAI’s tendency to reuse or rename model families rather than move straight through numbered releases on a fixed calendar. The “Spud” rollout showed how an anticipated next-generation launch can arrive under a different label, which weakens the case for assuming that any internal successor automatically settles this market yes.[1][12][14] In comparable cases, the market typically needs a clearly branded public release, not merely a preview, private beta, or API-only test, which raises the bar for a year-end resolution.[12][15]
For traders, the key catalysts are any official OpenAI post, model-card update, or ChatGPT/app release note that explicitly names GPT-6 and confirms public access, plus any sign that safety testing has moved from closed evaluation into open sign-ups.[10][12] Watch for timing around product launches and infrastructure updates, because the April 2026 rollout suggests OpenAI can move from pre-training completion to public shipping quickly, but also that the final naming decision can change at the last moment.[1][9][14] Anything short of a general-public release by 31 December would still resolve No under the market rules.[
Methodology
Football-specific comparison page for GPT-6 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 (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
- 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.
- 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.
- 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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