GPT-6 Astra: the harness is the product
GPT-6 Astra does not prove that OpenAI has reached AGI. What it does prove is that the harness can no longer be treated as plumbing.
Astra scored 54.8% on ARC-AGI-3 at high reasoning in the standard harness. The same model scored 99.9% when the harness preserved its reasoning state and compacted long conversations. That is a 45.1-point difference without changing the model.
My takeaway is simple: if you evaluate only the model name, you are evaluating the wrong product. For long-running agent work, the product is the model, memory, tools, context management, and control loop together.
That is why Astra matters even if you are not interested in arguing about AGI.

