Claude Fable 5 restored for US customers by…?

Platform comparison

Active sub-markets

Market context

On 12 June 2026, the US government issued an export-control directive forcing Anthropic to suspend access to Claude Fable 5 and its unrestricted variant, Mythos 5, for all foreign nationals, leading the company to disable the models globally for compliance. The suspension stems from national-security concerns, including fears of a jailbreak bypass and potential access by a group linked to China, though Anthropic has stated it is working to restore access as soon as possible and believes the block may be temporary[1][2][4].

Historical precedents for export-control interventions in commercial technology suggest such blocks are rarely permanent unless tied to irreversible sanctions; similar measures in semiconductor and cryptography sectors were lifted once safety patches were verified or diplomatic channels clarified the scope[2][4]. The current 0% implied probability on Kalshi likely reflects stricter KYC requirements and decimal-odds framing that penalise low-probability recovery bets, whereas Polymarket’s implied-probability model and lower fees might better capture the nuance of a temporary, patch-dependent resolution[4].

Traders should monitor Anthropic’s official announcements regarding a safety patch for the cited jailbreak, as the fastest path to restoration involves remediation followed by a directive lift[4]. A key date to watch is the original free-access window for Pro, Max, Team and Enterprise subscribers, which ended 22 June 2026; any extension of this window or clarification on fallback model availability (such as Claude Opus 4.8) could signal progress[4]. Recent reporting from Forbes confirms the Commerce Department’s order was dispatched late on 12 June, with no official return date confirmed as of 17 June[6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Claude Fable 5 restored for US customers by…? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). PolyGram routes every trade directly into Polymarket's on-chain settlement, which is why payouts land fastest.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.