Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Market UK) Pick polygram.ink (preferred broker) |
96% | 4% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
96% | 4% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See 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
A **Yes** share pays out if Google makes its next Gemini **Pro** model available to the general public before the settlement deadline; a **No** share pays out if no qualifying Pro launch happens in time. Because the market excludes Flash, Flash-Lite and other non-Pro variants, the key question is not whether Google ships *something*, but whether it ships a model explicitly branded as Pro and released publicly, including a GA launch of an existing preview model if the name changes accordingly.
The recent pattern is mixed but informative. Google has already been iterating quickly through Gemini releases: Gemini 2.5 Pro remains listed with a retirement date, while Gemini 3.1 Pro is still marked preview in Google’s own materials, and Gemini 3.5 Flash reached public release in May 2026.[1][3][7] That means the market is really pricing the gap between preview and broad availability. Reuters reported on 21 July that Google had released cheaper Gemini models but gave no timing update for the delayed flagship Pro model, which is notable because delays have already stretched the expected launch window.[14] Earlier reporting also said Google had been targeting a July launch for Gemini 3.5 Pro after a previous June plan slipped.[5]
For traders, the main catalysts are Google’s official blog posts, API release notes, and developer documentation updates, plus any keynote or product-event announcements that can move a model from preview to GA.[2][6][12] Watch for wording such as “available for everyone”, “general availability”, or a renamed preview model upgraded to GA, because that would likely satisfy the market rules.[7][12] Conversely, a new Flash or Flash-Lite release would not count, even if it attracts attention or ships first.[1][14]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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 Prediction Market 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.
- 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.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Market UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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