GPT-6 Astra, released September 3, is still OpenAI's only Astra model
OpenAI's own pages, as of November 4, list GPT-6 Astra under its latest advancements, alongside GPT-6.1 Sol. The product listing that day showed Introducing Images 2.6, and an earlier entry dated October 26 reads Introducing GPT-6.1 Terra. None of those is an Astra model at version 6.1 or higher, which is what a November 6 release would need.