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  "path": "/t/why-is-gpt-5-4-mini-showing-up-in-my-codex-usage/1385210#post_9",
  "publishedAt": "2026-06-30T12:11:54.000Z",
  "site": "https://community.openai.com",
  "textContent": "I actually use Codex GPT-5.5 High as a mid/senior developer in my workflow, and it has been boosting my productivity. With any other model, you have to babysit it. That’s why I could clearly see the difference in quality before and after the update.\n\nThis is my observation:\n\nGPT-5.5 Low/Medium are not good for serious work.\n\nGPT-5.5 High and Extra High are similar in quality. I expected Extra High to be better, but in my experiments, I didn’t see much difference.\n\nUnless you have a Pro plan, don’t use 1.5x speed. Your usage will be exhausted in under two hours.",
  "title": "Why Is GPT-5.4 Mini Showing Up in My Codex Usage?"
}