GPT-5.6 released on 2026?

Platform comparison

Market context

OpenAI has formally delayed the full public launch of GPT‑5.6 at the US government’s request, limiting initial access to a small group of vetted partners while a general‑availability date remains unannounced[5][7]. This regulatory intervention, confirmed on 26 June, directly explains the current crowd‑implied probability of 0% for a public release before the settlement window ends in July 2026, as the model is not yet available to the general public[5].

Historical release patterns within the GPT‑5 generation show a consistent six‑week cadence between flagship models, with GPT‑5.4 in March, GPT‑5.5 in April, and GPT‑5.6 tracking for late June before this delay[1][2]. Comparable cases, such as the rapid progression from GPT‑5.1 to GPT‑5.2, demonstrate that technical milestones like the redesigned reward audit pipeline post‑goblin incident can compress cycles, yet external factors like government access requests have previously overridden these internal timelines[3].

Traders should monitor OpenAI’s Deployment Safety Hub for the official system card and any updates to Codex backend logs, which historically signal the first public version‑bump[3][4]. The primary catalyst remains the resolution of US government access negotiations, with the next critical date likely tied to the expansion of availability beyond the current trusted‑partner preview, as OpenAI has stated plans to broaden access soon but without a fixed date[6][7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews GPT-5.6 released on 2026? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Prediction Today, which mirrors the Polymarket order book at 0% fees.

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

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Prediction Today trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.