Build notes, practical systems, and a closer look at what changed. Written to help you make a decision, try something useful, or avoid learning the annoying part twice.
GPT-6 Astra can use computer-use tools, but the model does not supply the environment or decide whether a user-interface route is better than an API. Use it when the interface is part of the work, then compare it with the narrowest reliable
A dated comparison of GPT-6.1 Sol, GPT-6 Sol, Luna, Opus 5.5 and Gemini rates, hypothetical ticket costs, and the measurements needed to price accepted work.