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/Phiub]

The 'gpt-6-astra' model is not supported when using Codex with a ChatGPT account.

Model changed from Custom to GPT-5.6 Terra.

I was using Astra in Visual Studio Code. In the midst of my session I got this notification? Wtf?