GPT-6 Astra

OpenAI’s frontier model, launched Sep 3 2026. Tracked across roundups through several distinct storylines rather than one launch event: the initial capability claims and Critical-cybersecurity designation, the more measured independent benchmark read, Armin Ronacher’s sustained hands-on critique that the model degrades for human-readable software engineering even as agentic benchmarks improve, and the training-data provenance dispute over the math results it was launched with.