What Codex Actually Sends to the Model

· 0xkato · Aug. 4, 2026, 12:41 p.m.
Summary
This blog post provides a detailed analysis of the requests generated by Codex in response to a specific prompt. The author measures various interactions including loading instructions, using tools, reading files, and more, offering insights into the internal workings of Codex.
AUTHOR
Sponsored
Zulip logo Zulip
Organized team chat for people who take work seriously. Topic-based threading keeps conversations focused.
Try Zulip
Become a sponsor →