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Claude Mythos: Coding Arena Debut?

Comparison of odds and platforms for "Claude Mythos: Coding Arena Debut?" — sourced live from the Polymarket order book, curated by Polymarket UK.

99% YES 1% NO Volume: $228K Liquidity: $121K Closes: 31 Dec 2026
Trade on Polymarket UK →
Claude Mythos: Coding Arena Debut?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket UK Pick
polygram.ink
99% 1% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Open on Polymarket UK →
Polymarket
polymarket.com
99% 1% 0% Geo-blocked in US/UK/EU USDC, on-chain Open on Polymarket UK →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Open on Polymarket UK →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Open on Polymarket UK →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Open on Polymarket UK →

Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on Polymarket UK.

Active sub-markets

1530+99% YES1% NO
1540+2% YES99% NO
1550+1% YES99% NO
1520+99% YES1% NO

Market context

Market consensus: 99% chance of claude mythos: coding arena debut?. Prediction markets aggregate real capital to produce this probability signal. This market will resolve to "Yes" if the first Claude Mythos model added to the Arena.AI Coding Leaderboard (https://arena.ai/leaderboard/text/coding-no-style-control) has at least…

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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?
On Polymarket UK, 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?
Polymarket UK 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.
What does it cost to trade on Polymarket UK?
Zero. Polymarket UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
Do I need to KYC for this market?
Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket UK triggers a quick verification flow that finishes in minutes.
and

Trade Claude Mythos: Coding Arena Debut? on Polymarket UK

Live order book, 0% fees, USDC settlement in seconds.

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