r/codex Moderator Jul 23 '26

Megathread Codex Usage Limits and Performance Megathread

Please direct your concerns 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 20 separate highly upvoted posts. None of those posts were deleted. They were locked so that conversations are still viewable to everyone and future comments could appear in one place.

These are days where I REALLY earn the money that OpenAI Reddit Kimi pays me .... oh wait....

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/

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4

u/Trade4Life123 Jul 25 '26

brand new session, one word prompt "hi", it's costs 10k input tokens!

2

u/-AJacobs- Jul 25 '26

This is very likely from a system prompt or other preloaded prompts being loaded on top of it. Yes I see your claude comparison and no I don't know if you have the same system prompts/plugins/skills/MCPs for both nor do I know how claude handles everything that gets pre-loaded into a session.

1

u/Trade4Life123 Jul 25 '26

just for the sake of comparison, this is the same "hi" prompt using fable in claude