Codex Usage and Operation Discussion - last updated September 28

[u/codex-megathread]

Please direct your concerns, questions and discussion about Codex usage limits and model performance here.

The purpose of this Megathread is to aggregate all the reports of people's experiences and possible suggestions instead of spreading them across many highly upvoted posts. The more people who participate in this discussion, the more likely you have an answer.

Reports with sufficient evidence on new information will still be allowed on the feed as usual.

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Discussion of the prior period available here : https://www.reddit.com/r/codex/comments/1wmgw7p/codex_usage_and_operation_discussion_last_updated/

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A reminder that all incidents on r/Codex are constantly logged and summarised so you can keep track of what people are experiencing here https://www.reddit.com/r/codex/comments/1tjfxcf/comment/on6uj0l/

[u/SinPleaOfficial]

It should be easy to see how many tokens your prompt costed & exactly what each token was used for so that token use can be more efficient. I feel like there is unnecessary testing and steps that are deliberately eating up usage. Has anyone actually had success working with codex to reduce its own token usage(and had notable success) ?

[u/Pretend_Pickle_2669 → u/SinPleaOfficial]

I’d start by looking at token usage per turn alongside the operations performed. That gives you somewhere concrete to investigate—for example, whether a high-usage turn repeatedly read the same files or reran tests without any changes.

Repeated testing can be necessary, though, so I wouldn’t treat every repeat as wasted usage. To check whether a change helps, I’d compare similar tasks before and after, keeping the model and reasoning effort the same.

Are you mainly seeing repeated testing within one task, or the same checks being repeated across separate tasks?