Next Claude Opus released by 2026?

Platform comparison

Market context

Anthropic’s next Claude Opus model must be publicly launched before the end of 2026 to settle this market as “Yes,” with the crowd currently pricing a 96% chance of success. The last confirmed Opus release was Claude Opus 4.8 on 28 May 2026, available immediately via API and all Claude products [1][3].

Historically, Anthropic has maintained a point-bump cadence for Opus, with 4.7 released in early 2026 and 4.8 following just two months later [1][4]. While the next major generation (Claude 5 or Sonnet 5) remains unconfirmed as of late June 2026, the most probable path is a safeguarded refresh of Opus rather than a new brand line [2]. This pattern supports the high implied probability, as point-bump updates have consistently met public launch deadlines.

Traders should monitor Anthropic’s official announcements for any confirmation of an Opus 4.9 or Opus 5.0, particularly as the suspended Mythos-class models (Fable 5 and Mythos 5) may be restored first, potentially delaying an Opus refresh [2]. On Polymarket, this 96% implied probability translates to decimal odds of 1.04, whereas Kalshi and Betfair would display 1.04 and 24/1 respectively; fee structures and KYC requirements also diverge, with Polymarket offering non-KYC access while Kalshi mandates full identity verification for US traders.

Sources: 1 · 2 · 3 · 4

Methodology

This page compares Next Claude Opus released by 2026? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Alternative, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.