Polymarket "GPT-5.6 will not be publicly available before June 28" probability rises to 78%, up 67% in 24 hours

Odaily Seer Prophet Channel monitoring shows that Polymarket's "GPT-5.6 will not be publicly available before June 28" probability has risen to 78%, up 67% in 24 hours.

OpenAI Chief Scientist Jakub Pachocki described GPT-5.6 as a significant upgrade over GPT-5.5 in an internal memo on June 11. Analysts believe that previous leaked information related to the Codex backend in May, along with the relatively rapid iteration pace following the release of GPT-5.5 on April 23, have strengthened market expectations for the imminent launch of GPT-5.6.

The rules state that GPT-5.6 includes both models explicitly named GPT-5.6 and those recognized by OpenAI as direct successors to GPT-5.5 (such as GPT-5.7, GPT-5.8, etc.). Task-specific models, cost-optimized versions like Nano/Mini, and the o-series reasoning models are not included in the scope of this event. Next-generation flagship models like GPT-6 are also ineligible. Eligible models must be officially opened to the public, including in the form of open beta or open waitlists. Versions limited to closed testing or private access do not meet the settlement criteria.

This event will primarily rely on OpenAI's official announcements and official website information as the basis for settlement, supplemented by verification from credible media reports.

Odaily Seer Prophet Channel continues to monitor the prediction market, seeing changes before pricing.