Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Review UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Market context
Anthropic announced on 12 July 2026 that Claude Fable 5 would remain accessible on all paid subscription tiers through 19 July, deferring the transition to usage-credit-only billing. This represents the second extension within a fortnight, following an earlier cutoff date that was similarly pushed back. The current market assigns 100% probability to a further extension beyond 19 July, reflecting strong historical precedent: Anthropic has now extended access twice in rapid succession rather than executing the originally planned transition.
Previous model rollouts from Anthropic show a pattern of gradual deprecation rather than hard cutoffs. Claude 3 Opus remained available on paid plans for months after newer models launched, and earlier versions were phased through usage-credit tiers without immediate removal from standard allocations. This incremental approach reduces friction for paying customers and allows Anthropic to manage infrastructure load whilst maintaining revenue from subscription holders. The two extensions within days of each other suggest internal capacity or commercial constraints that are unlikely to resolve by 19 July.
Traders should monitor Anthropic's official channels and Claude product documentation for announcements between 15–19 July. Any statement regarding Fable 5 availability, pricing changes, or new model releases could signal the company's intent. The market's extreme probability skew reflects the empirical track record: Anthropic has not yet allowed a paid-plan model to drop to usage-credit-only without prior notice and staged transitions. Watch for capacity announcements or competitive pressure from other providers, which might accelerate or delay the decision.
Methodology
This page reviews Will Anthropic extend Claude Fable 5 paid-plan access again by July 19? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Review UK, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
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 Polymarket Review 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.
- 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.
- 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.
- 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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