OpenAI introduces GPT‑5.1-Codex-Max coding model and has already completed a 24-hour task internally
OpenAI has introduced GPT‑5.1-Codex-Maxa new frontier agent coding model now available in your Codex developer environment. The launch marks a significant step forward in AI-assisted software engineering, offering real-time interactive capabilities, improved efficiency and long-term reasoning. GPT-5.1-Codex-Max will now replace GPT-5.1-Codex as the default model on all surfaces built into Codex. The new model is…