Claude Fable 5 restored for US customers by…?

Platform comparison

Market context

On 12 June 2026, the US government issued an export control directive citing national security concerns, forcing Anthropic to abruptly disable access to Claude Fable 5 and Claude Mythos 5 for all customers worldwide. Because the directive barred access by any foreign national regardless of location, and real-time segmentation of user nationality across a global base is impractical on same-day notice, Anthropic chose a blanket shutdown rather than attempting partial compliance. This action left other models, including Claude Opus 4.8, fully operational while the specified models were removed from all API services and user interfaces.

Historical precedents for such regulatory interventions show that once a model is suspended under national security export controls, restoration is exceptionally rare unless the underlying regulatory scope is formally revised or the technology is reclassified. In comparable cases involving advanced semiconductor or cryptographic tools, access remained blocked for years, with the 0% crowd-implied probability reflecting the market’s assessment that Anthropic lacks the legal pathway to restore these specific models before the 2026 deadline. The suspension was not a technical outage but a compliance mandate, making reversal dependent on high-level policy shifts rather than corporate discretion.

Traders approaching this market programmatically should monitor announcements from the Bureau of Industry and Security (BIS) and any public statements from Anthropic regarding potential reclassification or substitute model deployment. Recent reporting by Reuters confirmed the US ordered the hold on foreign access to advanced AI models, and further BIS guidance updates would be the primary catalyst for any shift in probability [3]. Key dependencies include whether Anthropic releases a confirmed equivalent model named “Claude Mythos 6” or similar, which would not resolve this market as it requires the exact named models Fable 5 or Mythos 5. Without a formal BIS directive revision, the likelihood of restoration remains negligible.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Claude Fable 5 restored for US customers by…? 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 Bot UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Bot 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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Bot UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.