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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 Klarna UK.

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

Platform comparison

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

Active sub-markets

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

Market context

Traders on decentralised prediction markets give 99% probability to claude mythos: coding arena debut?. 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 the specified score…

Methodology

This page reviews Claude Mythos: Coding Arena Debut? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket Klarna UK — the application we operate, where you trade directly against 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

Is this market available outside the US?
Polymarket Klarna 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.
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, Polymarket Klarna UK triggers a quick verification flow that finishes in minutes.
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.
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