Pronóstico: When will GPT-5.6 be released?

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Active sub-markets

Market context

OpenAI is preparing to launch GPT-5.6, its next flagship model, with a backend identifier already visible in Codex infrastructure and multiple sources confirming a late-June release window. Chief scientist Jakub Pachocki has described the update as a "meaningful improvement" over GPT-5.5, focusing on agentic workflows and a 43% expansion in context window to 1.5 million tokens, though no official system card or API string has been published as of mid-June.

Historical release patterns for the GPT-5 series show a compressed cadence of roughly six weeks between flagships: GPT-5.4 arrived on 5 March, GPT-5.5 on 23 April, and GPT-5.6 is now tracking for late June. This mirrors the progression from GPT-5.1 to GPT-5.2, where incremental updates followed tight schedules. Unlike earlier multi-month cycles, the current rhythm suggests OpenAI is prioritising speed, with Polymarket traders assigning 83–89% probability to a launch between 22 and 28 June based on over $1 million in contract volume.

Traders should monitor Codex backend logs for the first public version-bump, as the model name surfaced there before any announcement. An official system card and deployment safety hub entry are expected to land simultaneously with the model, following the GPT-5.5 pattern where API access began the day after ChatGPT launch. The Information reported on 10 June that the model is in late-stage preparation, and a staged rollout starting with ChatGPT and Codex is anticipated before broader API availability. Watch for any delay in the system card, which could signal final safety audits, particularly given GPT-5.6 is the first model trained with a redesigned reward audit pipeline post the "goblin" incident.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: When will GPT-5.6 be released? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against 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

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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 does it cost to trade on PolyGram?

Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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.

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.