Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Scam?) Pick polygram.ink (preferred broker) |
29% | 71% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Place a position → |
Polymarket (direct) polymarket.com |
29% | 71% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Place a position → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Place a position → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Place a position → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Place a position → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 24 | 29% |
| No release by July 31 | 16% |
| July 28 | 14% |
| July 27 | 11% |
| July 30 | 11% |
| July 23 | 8% |
| July 29 | 3% |
| July 31 | 2% |
| July 25 | 1% |
| July 26 | 1% |
| July 15 or prior | 0% |
| July 16 | 0% |
| July 17 | 0% |
| July 18 | 0% |
| July 19 | 0% |
| July 20 | 0% |
| July 21 | 0% |
| July 22 | 0% |
Market context
Polymarket has this contract at **0% YES**, so on-chain traders on Polygon are currently pricing the chance that Anthropic publicly ships another model explicitly named **Opus** before the 31 July 2026 settlement window as effectively nil. Positions here settle in **USDC** via conditional tokens, so the market is not judging benchmark quality or internal previews; it is only counting a qualifying public release of an officially named Opus variant.
That reading sits against a brisk 2026 release cadence. Anthropic has already pushed **Claude Opus 4.6**, **4.7** and **4.8** into public availability, with Opus 4.8 announced as available everywhere on 28 May 2026[2][3][5]. If the market has stayed pinned at zero, it suggests traders see little evidence of a fresh Opus launch with only days left, despite the recent pattern of successive numbered upgrades arriving within weeks rather than quarters[5][7].
The main catalysts to watch are straightforward: an Anthropic newsroom post, a change in Claude product availability, or a model listing that explicitly uses the **Opus** name and is accessible to the general public, including open beta or public waitlist sign-ups. By contrast, a closed pilot, an internal test, or a model under another label would not resolve this market. Any surprise release would likely first appear in Anthropic’s own announcements or docs, as it did with prior Opus launches across Claude products and major cloud platforms[2][3][8].
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
- 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 Polymarket Scam? 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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