Pronóstico: Will Anthropic extend Claude Fable 5 paid-plan access again by July 19?

Platform comparison

Market context

Anthropic extended Claude Fable 5 access on paid plans by one week on 12 July 2026, pushing the cutoff from 12 July to 19 July before the model transitions to usage-credit-only billing. The market currently trades at 100% YES on Polymarket, reflecting near-certainty that another extension announcement will arrive before the 19 July deadline. This pricing suggests traders view a further reprieve as highly probable given Anthropic's demonstrated willingness to delay the transition rather than enforce the originally scheduled cutoff.

Anthropic's pattern of last-minute extensions provides the interpretive frame here. The company has repeatedly delayed Fable 5's transition to credit-only access since the model's initial deprecation timeline, each time citing user feedback and operational considerations. This track record of extensions—rather than hard enforcement—anchors the 100% probability. Traders are essentially pricing in that Anthropic will follow its established behaviour of deferring the billing model change when the deadline approaches, particularly given the commercial friction such transitions create for paying customers accustomed to fixed-tier access.

The critical catalyst is Anthropic's announcement schedule in the week before 19 July. Traders should monitor the company's official channels and developer communications for signals about Fable 5's future status. Any statement from Anthropic leadership regarding model availability, deprecation timelines, or billing changes could shift market expectations, though the current pricing reflects confidence that an extension announcement is already in motion. The market resolves on 19 July at 23:59 ET, leaving a narrow window for qualifying announcements.

Methodology

This page reviews Pronóstico: 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 Qué Es, which mirrors the Polymarket order book at 0% fees.

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 Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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 Polymarket Qué Es 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.