Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Alternative) Pick polygram.ink (preferred broker) |
37% | 63% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
37% | 63% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| August 10 | 37% |
| No release by August 31 | 13% |
| August 12 | 12% |
| August 24 | 6% |
| August 25 | 5% |
| August 27 | 4% |
| August 18 | 3% |
| August 6 | 2% |
| August 7 | 2% |
| August 8 | 2% |
| August 11 | 2% |
| August 16 | 2% |
| August 26 | 2% |
| August 28 | 2% |
| August 9 | 1% |
| August 13 | 1% |
| August 14 | 1% |
| August 17 | 1% |
| August 19 | 1% |
| August 20 | 1% |
| August 21 | 1% |
| August 29 | 1% |
| August 31 | 1% |
| On or prior to August 1 | 0% |
| August 2 | 0% |
| August 3 | 0% |
| August 4 | 0% |
| August 5 | 0% |
| August 15 | 0% |
| August 22 | 0% |
| August 23 | 0% |
| August 30 | 0% |
Market context
Google’s next public **Gemini Pro** release is the event that matters here, and the market only counts a model that is launched and publicly accessible, not a Flash or Flash-Lite variant. Google has already been rolling out Pro-branded models in stages: Gemini 3.1 Pro was made available in preview across the Gemini app, AI Studio, Vertex AI and Gemini Enterprise, which shows that a “release” can mean broad preview access rather than only a fully final consumer launch.[8][10]
The current 0% crowd price sits well below the kind of dates discussed in earlier coverage, where Google was said to have targeted June, then July, for Gemini 3.5 Pro before newer launches arrived without a flagship Pro update.[5][9][14] That history matters because it shows Google can ship adjacent models first and leave the Pro tier pending; it also means traders on Polymarket are reading a probability, while Kalshi and Smarkets-style books typically express the same view through price plus fees, and Betfair-style exchange markets add matching liquidity and commission into the effective odds. On this specific question, the main comparison point is whether the market is pricing an ET calendar date by direct implied probability or through a decimal-price quote that must be adjusted for costs.
Catalysts are likely to be Google blog posts, Gemini release notes, and developer-facing changelogs, because those are where Google has previously confirmed rolling availability and preview-to-GA changes.[3][6][8] Reuters reported on 21 July that Google had released cheaper Gemini variants but gave no timing update for the flagship Pro model, which keeps the uncertainty centred on whether Google will package the next Pro launch with a product event, a workspace update, or a quiet API rollout.[14] For traders, the key dependency is whether Google labels the next release as a Pro model and makes it generally accessible before 31 August 2026 ET; if the company only ships another Flash-family update, this market should stay unresolved.[1][2]
Methodology
We read Next Google Gemini Pro Model released on 2026? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.
Resolution & payout
Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.
FAQ
- What does Polymarket cost vs Kalshi?
- Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- Is Betfair a Polymarket alternative?
- Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
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