Unrolling the Codex agent loop

📰 OpenAI News

Technical deep dive into Codex agent loop and its orchestration

advanced Published 23 Jan 2026
Action Steps
  1. Understand the Codex CLI and its role in orchestrating models and tools
  2. Explore the Responses API and its functionality in the Codex agent loop
  3. Analyze how prompts and performance are managed within the loop
  4. Investigate applications and potential improvements of the Codex agent loop
Who Needs to Know This

AI engineers and researchers benefit from understanding the Codex agent loop to improve model performance and integration, while software engineers can apply this knowledge to develop more efficient tools and APIs

Key Insight

💡 The Codex agent loop relies on the Responses API to manage model performance and integration

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🤖 Unrolling the Codex agent loop: orchestrating models, tools, prompts, and performance
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