Next Claude Sonnet released by 2026?

Platform comparison

Market context

The real-world event is whether Anthropic launches a new Claude Sonnet model for general public access before 31 July 2026. This market resolves to “Yes” if the next Sonnet variant—such as Sonnet 4.7, 5.0, or any officially named Sonnet—is publicly available by that date; otherwise, it resolves to “No”.

Historical release patterns show Sonnet models typically follow Opus upgrades within months. Claude 3.5 Sonnet arrived in July 2024 after the March 2024 Claude 3 launch, and Claude 3.7 Sonnet came in February 2025 following the 3.5 cycle. The most recent Sonnet update, 4.6, was released in February 2026, while Opus 4.8 launched in May 2026 [3]. Given the 93% crowd-implied probability, the market expects a Sonnet 4.7 or 5.0 release within the next four months, aligning with the pattern that Sonnet updates follow major Opus releases by roughly three to six months.

Traders should monitor Anthropic’s official announcements, API release logs, and deprecation notices for clues. The June 15, 2026 deprecation of Sonnet 4 and Opus 4 [4] suggests a migration window that often precedes a new model launch. Recent community speculation points to a potential Sonnet 5 release in January 2026, though rapid development could accelerate this [2]. With the settlement deadline in July 2026, any announcement of a Sonnet 4.7 or 5.0 in the coming weeks would strongly confirm the “Yes” outcome. Programmatic traders can track API version strings and model availability endpoints for early signals of a new Sonnet release.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Next Claude Sonnet released by 2026? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

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 Polymarket App UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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