Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) Pick polygram.ink (preferred broker) |
96% | 4% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
96% | 4% | 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 31 | 96% |
| August 21 | 94% |
| August 14 | 90% |
| August 7 | 4% |
| June 5 | 0% |
| June 12 | 0% |
| June 19 | 0% |
| June 26 | 0% |
| June 30 | 0% |
| July 31 | 0% |
| July 3 | 0% |
| July 10 | 0% |
| July 17 | 0% |
| July 24 | 0% |
| July 27 | 0% |
| July 28 | 0% |
| July 29 | 0% |
| July 30 | 0% |
Market context
Polymarket prices this contract at **0% YES** today, so the market is effectively saying the odds of Google putting a qualifying **Gemini Pro** model into public hands before 31 July 2026 are negligible. On Polymarket, that view is expressed in USDC on Polygon through conditional tokens, so the quote reflects both the event expectation and traders’ willingness to lock up capital against a launch that has not yet arrived.
The recent history is unhelpful for anyone relying on Google’s earlier timing. Google has already shipped **Gemini 3.1 Pro** in preview across consumer, developer and enterprise surfaces, including the Gemini app, AI Studio and Vertex AI[9][16]. By contrast, the newer flagship **Gemini 3.5 Pro** was repeatedly delayed: Google said in May it would come “next month”, then Reuters reported on 21 July that it was still being tested with partners and that Google had given no new timing update[15]. That matters because the market only resolves on a public release of a model labelled Pro, not on a Flash or lightweight update[15].
For traders, the main catalysts are Google product posts, Gemini release notes, and comments from DeepMind or product leads. Reuters’ 21 July report is the clearest recent signal that the model remained in partner testing rather than general availability[15]. Any fresh blog post, API changelog entry, or app rollout note naming a new Pro variant could move this market quickly, especially if Google uses a GA label for an existing preview model or launches a successor such as “3.5 Pro” or “4.0 Pro Preview” before the window closes[1][2][3].
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi UK, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- 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 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.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Next Google Gemini Pro Model released by 2026? on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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