Rick W / Thursday, February 5, 2026 / Categories: Artificial Intelligence GPT-5.3-Codex System Card GPT‑5.3-Codex is the most capable agentic coding model to date, combining the frontier coding performance of GPT‑5.2-Codex with the reasoning and professional knowledge capabilities of GPT‑5.2. Previous Article Governance isn’t a burden — it’s a business strategy Print 8 Tags: ModeModel