Next Claude Sonnet released by 2026?

Platform comparison

Market context

Anthropic’s next Claude Sonnet model must be launched and publicly accessible to the general public by 31 July 2026 for the market to resolve to “Yes”. The crowd currently prices this outcome at 72%, reflecting confidence that the timeline aligns with Anthropic’s recent release cadence.

Historically, Sonnet upgrades have followed a roughly four-to-five-month rhythm: Claude Sonnet 4.5 arrived in September 2025, and Sonnet 4.6 was released in February 2026, just five months later[1][5]. This pattern suggests a Sonnet 4.7 or 5.0 launch in the first half of 2026 is plausible, though the deprecation of Sonnet 4 in June 2026 may accelerate a successor’s rollout[4]. Traders should monitor Anthropic’s official announcements, particularly any mention of a Sonnet 4.7 or 5.0 in the coming weeks, as well as the timing of Haiku or Opus updates that could signal a broader generation shift[2][3]. A recent Reddit discussion speculates that a Sonnet 5 could arrive in January 2026, but rapid development may push it sooner[2].

The on-chain mechanics on Polymarket use USDC on Polygon, with conditional tokens determining settlement once the settlement window closes. Prices reflect real-time liquidity and sentiment, not abstract probability. With the deadline fixed, any delay beyond mid-July would sharply reduce the YES probability, while an early announcement would cement it.

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 Polymarket Legit?, 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

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.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.