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Model Launch 1 min read

GPT-5.1-Codex-Max System Card

Source: OpenAI Blog
November 19, 2025 · 10mo ago
Visual for GPT-5.1-Codex-Max System Card

Summary

This system card outlines the comprehensive safety measures implemented for GPT‑5. 1-CodexMax.

Why It Matters

New model releases reshape what developers can build. As capabilities advance, existing applications can be upgraded and entirely new use cases become feasible — making it critical for engineers to evaluate these releases early.

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