Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via World Cup 2026 Favorites) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 31 | 100% |
| July 17 | 100% |
| August 31 | 100% |
| July 10 | 100% |
| July 8 | 100% |
| May 31 | 0% |
| June 15 | 0% |
| June 30 | 0% |
Market context
xAI has confirmed that Grok 4.4, a direct successor to Grok 4.3, will arrive within roughly two to three weeks at one trillion parameters, with training data through early April 2026. This release sits on a tight runway before Grok 4.5 follows at 1.5 trillion parameters, while the flagship Grok 5, delayed to Q1 2026, targets up to 10 trillion parameters. The current 0% crowd-implied probability for public availability by June 2026 appears inconsistent with this specific, accelerated schedule, as even the pre-training completion for Grok 5 occurs within two months, leaving ample time for alignment and deployment before the settlement window closes.
Historical release patterns from xAI show a deliberate progression from Grok 4 to 4.1, then to heavier variants, establishing a precedent for incremental updates rather than waiting for a single massive launch. Grok 4.1 launched in November 2025 with significantly reduced hallucinations, and Grok 4 Heavy enhanced reasoning capabilities, suggesting that 4.4 will likely follow this iterative model. Given that Grok 5 is already in pre-training with a realistic public release window in late 2025 or early 2026, the probability of a specific variant like 4.4 being made available to the general public by mid-2026 is high, making the current zero-per-cent market stance difficult to justify against the published roadmap.
Traders should monitor xAI’s official announcements for the exact Grok 4.4 launch date, which Musk indicated would occur roughly two to three weeks from his initial post, and watch for the subsequent Grok 4.5 release within four to five weeks. Key dependencies include the completion of pre-training for Grok 5, which is scheduled for roughly two months out, and the subsequent alignment and deployment phases that determine the final public release window. Recent reporting from Mind Studio confirms that seven models are simultaneously in training on the Colossus 2 supercluster, reinforcing the likelihood of rapid iteration and public availability well before the June 2026 deadline.
Methodology
Football-specific comparison page for Grok 4.4 released by 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.
- 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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