How to Use GPT-6 Astra (and Is It Free?)
Summary: Where to Find Astra Not free. Free and Go plans do not include Astra; their default model stays GPT-5.6 Luna. On Plus, Astra does not appear in regular Chat. Access arrives through ChatGPT Work and Codex. On Pro, Business and Enterprise, it shows up in the model picker under the Pro option, labelled GPT-6 Pro. The model underneath is Astra. Enterprise workspaces get it off by default at launch. An admin has to enable it. Codex CLI 0.153.0 or newer is required, and the desktop app needs updating too. In the API the model id is gpt-6-astra: 1.05M token context, 128K output, $10 in / $50 out per million tokens. Our GPT-6 Astra launch write-up covered what the model is, the benchmark table and the price tag. Two days later the question landing in the inbox is a different one: “I pay for Plus, there is no Astra anywhere in my model picker, where is it?” ...