Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
58% | 42% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
58% | 42% | 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 |
|---|---|
| July 9 | 58% |
| July 14 | 13% |
| July 8 | 6% |
| July 7 | 5% |
| July 10 | 5% |
| July 28 | 5% |
| July 16 | 3% |
| July 11 | 2% |
| Not released before August | 2% |
| July 12 | 1% |
| July 13 | 1% |
| July 15 | 1% |
| July 17 | 1% |
| July 19 | 1% |
| July 20 | 1% |
| July 22 | 1% |
| July 23 | 1% |
| July 24 | 1% |
| June 24 or earlier | 0% |
| June 25 | 0% |
| June 26 | 0% |
| June 27 | 0% |
| June 28 | 0% |
| June 29 | 0% |
| June 30 | 0% |
| July 1 | 0% |
| July 2 | 0% |
| July 3 | 0% |
| July 4 | 0% |
| July 5 | 0% |
| July 6 | 0% |
| July 18 | 0% |
| July 21 | 0% |
| July 25 | 0% |
| July 26 | 0% |
| July 27 | 0% |
| July 29 | 0% |
| July 30 | 0% |
| July 31 | 0% |
Market context
OpenAI has already announced the GPT-5.6 family on 26 June 2026, launching a limited preview for vetted partners via the API and Codex, while deferring a full public rollout at the US government’s request [1][3]. The model is not yet available in ChatGPT, and no general-availability date has been confirmed [6]. Despite this, the current crowd-implied probability of 0% for a public release before the settlement window ending 2026-07-31 appears misaligned with the timeline, as OpenAI explicitly plans broader access “in the coming weeks” [4][7].
Historically, similar incremental updates like GPT-5.1 to GPT-5.2 followed tight cycles, with public access often arriving within weeks of the preview phase [2]. Polymarket previously priced an 89% chance of a public release by 30 June 2026, reflecting strong community expectations, though markets have frequently missed exact dates [2]. The technical work behind GPT-5.6—including a redesigned reward audit pipeline post the “goblin incident”—suggests a compressed but deliberate rollout, not a delay into 2027 [2].
Traders should monitor Codex backend logs for version bumps, as these often surface public availability before official announcements [2]. OpenAI’s statement that GPT-5.6 will be generally available “in the coming weeks” [4] implies a window likely before mid-July 2026. Additionally, watch for updates to the Deployment Safety Hub system card, which typically lands simultaneously with public access [2]. Any shift in US government access restrictions or a new announcement from OpenAI’s account representatives could trigger the public launch, making the 0% probability increasingly questionable as July progresses.
Methodology
Football-specific comparison page for GPT-5.6 released on 2026?. 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.
- 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.
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