OpenAI has established a pattern of releasing major AI models at regular intervals over the past few years. GPT-5 represents the current state-of-the-art, and this prediction market is evaluating whether GPT-6 will be publicly released or announced by June 30, 2026—approximately ten months from the market's creation date. At current odds of 45% YES, traders are pricing in a moderate likelihood of release within this specific timeframe, reflecting underlying uncertainty about OpenAI's development velocity, competitive pressures from other AI research labs such as Anthropic and Meta, regulatory considerations, and typical release cadences observed for major foundation models. Recent market activity and sentiment show slight bullish momentum on the YES side, suggesting growing market confidence in an earlier-than-expected release as we approach spring 2026. The market resolves on official public confirmation from OpenAI regarding GPT-6's existence and availability to users, whether through a formal press release, product launch announcement, blog post, or model card publication on their website. This represents one of several AI timeline prediction markets on Polymarket tracking when frontier AI models will reach the public, reflecting broader interest in monitoring the pace of AI development across leading technology companies.