Next Claude Opus released on 2026?

Platform comparison

Market context

Anthropic’s latest Opus release is still Claude Opus 4.8, which was made generally available on 28 May 2026 across Claude products and the API.[2][3] Since then, Anthropic has shipped Claude Sonnet 5 and Claude Fable 5, but no official Opus 5 launch page, model ID, or announcement has appeared in the provided sources.[1][12][14]

That history matters because Anthropic has been iterating on Opus in relatively short steps: Opus 4.7 arrived on 16 April 2026, then Opus 4.8 followed on 28 May 2026, a gap of just over six weeks.[6][3] The market’s current 0% implied chance looks anchored to the lack of any public Opus 5 signal rather than to a long release drought; if Anthropic keeps the same cadence, an Opus launch before the end of July 2026 would normally need to be announced very quickly.

The main catalysts to watch are any Anthropic product posts, Claude docs updates, or API model-ID changes, because prior Opus launches were accompanied by immediate general availability and pricing/model details.[3][6] A trader should also watch whether Anthropic extends the pattern seen with recent releases, where new model names appeared first in product documentation and then in public launch notes, rather than through a long closed beta.[2][14] If no Opus-specific announcement lands, the current reading is likely to stay pinned near zero until the settlement window closes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Next Claude Opus released on 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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.