According to statistics based on "the time from the release of the current generation to the release of the next major version," the OpenAI model update cycle shows a significant shortening trend. The update intervals for GPT-1, GPT-2, and GPT-3 are 248 days, 469 days, and 916 days, respectively, with an average of approximately 544 days for the early three generations. From GPT-5 to GPT-6
Astra, the six updates in the selected sequence average about 65 days, a reduction of about 88% compared to earlier versions, equivalent to changing from an update frequency of about once every year and a half to about once every two months. However, the cycle in the table does not shorten with each generation; there is still a rebound between some versions. Based on this, it can be judged that a product advantage built solely on the capabilities of a single version may face challenges from competitors' new models more quickly. This set of statistics mixes integer generations, important minor versions, and restricted previews, reflecting the release rhythm of the selected product lines, and does not represent the lead time of the world's strongest model. As of October 6, 2026, GPT-6
Astra has been released for 33 days; this period has not yet ended and is not included in the above average.
