OpenAI has maintained a regular cadence of model releases and announcements over recent years. The April 30, 2026 deadline creates a tight window where GPT-5.5 must be publicly released to resolve as a NO trade. With current YES odds at just 4%, the market reflects exceptional trader conviction that a release will occur by this date. This pricing suggests informed participants expect either an imminent announcement or near-term deployment of GPT-5.5. The market was likely created to capture speculation around OpenAI's roadmap and expected timing of major releases. GPT-5.5, whether a major numbered version or significant intermediate update, would represent an important milestone in the AI capability race. The current price indicates traders are factoring in OpenAI's historical pattern of moving quickly once models reach production readiness. Market resolution requires official confirmation from OpenAI and public availability by the deadline. The 4% YES price has likely stabilized based on recent news or lack thereof regarding GPT-5.5 deployment status. Traders appear confident about near-term activity from OpenAI, though the tight deadline leaves limited margin for delays.