Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win 2026) Pick polygram.ink (preferred broker) |
93% | 7% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
93% | 7% | 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 |
|---|---|
| October 31 | 93% |
| September 30 | 87% |
| September 15 | 50% |
| August 31 | 25% |
| August 15 | 3% |
Market context
OpenAI’s Astra is still the underdog relative to the market’s pricing, with the current crowd-implied probability at **3% YES**. That says the consensus expects no public release by 31 October, despite the model having been named in OpenAI’s 1 August mathematics post and described elsewhere as an internal “next major model”.[1][14]
Historically, markets underprice a clean jump from research disclosure to public availability when there is no announced launch date, no model card and no API or product page. OpenAI has a pattern of shipping major systems under shifting names and packaging, rather than on a fixed timetable, which keeps the “same model, different branding” angle alive for traders. But the available reporting still says there is **no confirmed release date**, and recent write-ups place the earliest plausible window around September at the soonest, not early August.[1][2][8][14]
The key catalyst is whether OpenAI begins to talk like a launch is imminent: a public date, product listing, API notice, or clear confirmation that Astra has entered general availability. Traders should also watch for any sign that the model has cleared the reported federal pre-release review process, since that has been cited as a roughly 30-day gate and would make a next-week or even late-August release much harder to square with current reporting.[1][8] Axios reported on 7 August that OpenAI had slowed Astra’s release citing cyber capabilities, which is the clearest near-term drag on the bull case and helps explain why the consensus still leans to the No side.[4]
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 Who Will Win 2026, which mirrors the Polymarket order book directly.
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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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.
- 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 Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
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