Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 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
The real-world event at hand is whether xAI will make its Grok 4.4 model available to the general public before the settlement deadline of 30 June 2026. As of today, the Polymarket contract for this outcome sits at 0% YES, reflecting a complete lack of on-chain confidence that the release will occur within the timeframe. This pricing aligns with the current timeline: Grok 4.4 was announced to arrive in roughly two to three weeks from its initial announcement, but with today being 8 July 2026, the window for a public launch has already closed.
Historically, xAI has followed a rapid release cadence, with Grok 4 teased on 27 June 2025 and launched on 9 July 2025—a gap of just 12 days from signal to public availability [8]. However, that pattern applies to earlier versions, and the current roadmap indicates Grok 4.4 was targeted for release in weeks from its announcement, yet no public version has materialised by mid-2026. The 0% probability suggests traders view the deadline as unattainable, given that even Grok 4.5, announced on 28 June 2026, remains in private beta with no public date set [10].
Traders should monitor official xAI announcements, particularly any shift from private beta to public access for Grok 4.4 or its successors. Recent updates confirm Grok 4.4 is expected at 1 trillion parameters, with Grok 4.5 following at 1.5 trillion within weeks [3]. Yet, with no public release confirmed and the settlement window ending in 2026, the catalysts for a “Yes” outcome are effectively absent. The on-chain mechanics—USDC on Polygon using conditional tokens—continue to price this contract at zero, underscoring the market’s certainty that the event will not occur.
Methodology
We track Grok 4.4 released by 2026? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.
On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
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