Addendum to GPT-5 system card: GPT-5-Codex

📰 OpenAI News

OpenAI introduces GPT-5-Codex, a version of GPT-5 optimized for agentic coding in Codex

advanced Published 15 Sept 2025

Action Steps

Understand the capabilities of GPT-5-Codex
Explore the potential applications of agentic coding in Codex
Evaluate how GPT-5-Codex can be integrated into existing coding workflows

Who Needs to Know This

AI engineers and researchers on a team can benefit from this update as it improves the efficiency of coding tasks, while product managers can leverage this technology to develop more sophisticated coding tools

Key Insight

💡 GPT-5-Codex dynamically adjusts its thinking effort based on task complexity