GPT-5.6 released by 2026?

Platform comparison

Market context

OpenAI has quietly begun a limited preview of GPT-5.6 Sol, Terra and Luna, rolling the models to a select group of trusted partners via the API and Codex, but general public access remains unannounced. The preview excludes ChatGPT, and no general-availability date has been set, leaving the market’s 0% YES probability grounded in the absence of a confirmed public release before the 2026-07-31 settlement window[7][9].

Historically, OpenAI’s flagship releases follow a tight pattern: GPT-5.5 launched in production, then GPT-5.6 appeared in backend logs within three weeks, with Polymarket pricing an 89% chance of a June-30 public release based on $960,325 in contract volume[1][3]. Yet markets have repeatedly misjudged release dates this year, and the only confirmed difference is that OpenAI’s chief scientist called GPT-5.6 a “meaningful improvement” over GPT-5.5, with no official system card or API model string yet published[1].

Traders should watch for three catalysts: an official OpenAI announcement confirming a general-availability date, the appearance of GPT-5.6 in public ChatGPT or Codex interfaces, and the publication of a system card matching the deployment safety hub entry seen with GPT-5.5[3]. The Information reported on June 10 that chief scientist Jakub Pachocki described the model as a meaningful improvement, suggesting late-stage preparation, but OpenAI has not confirmed a date publicly[1]. Until any of these signals materialise, the market’s zero probability reflects the current reality: no public access, no date, no system card.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for GPT-5.6 released by 2026?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

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What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.