OpenAI’s GPT-6 family, including the flagship GPT-6 Astra released in early September 2026 and subsequent variants like GPT-6.1 Sol, currently anchors the company’s public roadmap, with traders viewing the absence of any official GPT-7 announcement or documentation as the dominant factor keeping release probabilities low through late 2026. Unverified leaks referencing an internal pretraining run codenamed “Bel” (reportedly exceeding 10 trillion parameters) have fueled speculation about a successor base model, yet these remain unconfirmed and distinct from a finished GPT-7 product. Historical release gaps of 13–29 months between major generations, combined with ongoing GPT-6 feature expansions such as Intelligent UI and live voice capabilities, support market-implied odds favoring a 2027 or later timeline. Upcoming catalysts include potential DevDay updates or further internal research disclosures that could clarify development pace relative to competitors like Anthropic and Google.