For those who are going to compare to Codex, make sure you understand what model you are working with: https://cookbook.openai.com/examples/gpt-5-codex_prompti

For those who are going to compare to Codex, make sure you understand what model you are working with: https://cookbook.openai.com/examples/gpt-5-codex_prompting_guide https://cookbook.openai.com/examples/gpt-5-codex_prompting_g... The "Codex" model requires different promoting for the best results. You may also find, depending on your task, that the standard non-codex model works better.