Claude Mythos 5 access restored by…?

Platform comparison

Market context

Anthropic has officially restored access to Claude Mythos 5 for a specific set of US organisations operating critical infrastructure, following direct approval from the US government. This decision, announced on 1 July 2026, reverses the suspension imposed on 12 June under a narrowed export control directive, meaning the underlying event required for the market to resolve "Yes" has already occurred.

Historical precedents in technology export controls suggest that once a government narrows a directive and grants specific redeployment approval, the restoration is typically permanent for the approved cohort. Unlike previous temporary suspensions where access was rescinded and reinstated multiple times, this narrow directive explicitly permits redeployment to vetted US entities, framing the current 0% crowd-implied probability as a significant mispricing relative to the settled reality.

Traders should monitor official announcements from Anthropic regarding the expansion of access beyond the initial infrastructure cohort, as well as updates on the general availability of Fable 5, which shares the same underlying model. A recent statement from the company confirms they are working to expand Mythos 5 access and make Fable 5 available for general use again, indicating further catalysts that could influence market sentiment despite the event already being resolved [1]. The divergence between the zero probability on prediction markets and the confirmed government approval represents a clear odds-comparison opportunity.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Kalshi vs Polymarket, which mirrors the Polymarket order book directly.

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 Kalshi vs Polymarket. 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 Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.