Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
95% | 5% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
95% | 5% | 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 |
|---|---|
| August 21 | 95% |
| August 14 | 81% |
| August 13 | 41% |
| August 12 | 8% |
| August 7 | 0% |
| August 11 | 0% |
Market context
SpaceX's xAI division must release Grok 4.6 or a direct successor variant to the general public by mid-August 2026 for this market to settle affirmatively. The current zero per cent crowd probability reflects scepticism about whether such a release will occur within the specified timeframe, despite xAI's established pattern of iterative model deployment.
xAI has demonstrated a consistent release cadence since Grok's initial public availability in late 2023. The progression from Grok 4.4 to Grok 4.5 occurred within months rather than years, suggesting the technical infrastructure and organisational capacity exist for numbered-version increments. However, major language model releases often face unpredictable delays tied to safety evaluations, compute availability, or strategic repositioning. Comparable cases from Anthropic and OpenAI show that announced timelines frequently slip by six to twelve months, particularly when releases approach flagship-generation thresholds that might justify marketing as Grok 5 instead.
Traders should monitor xAI's public statements and product roadmap announcements, particularly any declarations from Elon Musk regarding model release schedules. The settlement window extends roughly eighteen months from now, providing substantial runway for a 4.6-class release, yet the zero probability suggests the market is pricing in either scepticism about xAI's execution velocity or uncertainty about whether intermediate versions will be publicly released rather than held for internal or enterprise deployment. Recent reporting from The Verge and similar technology outlets has not indicated imminent 4.6 announcements, leaving the catalyst largely dependent on xAI's own disclosure timing.
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Grok 4.6 released by 2026? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
Resolution & payout
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
UK Frequently Asked Questions
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
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