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  "path": "/t/is-this-a-world-record-the-gpt-5-5-ran-for-19-hours/1380472#post_17",
  "publishedAt": "2026-05-13T21:21:37.000Z",
  "site": "https://community.openai.com",
  "textContent": "That makes sense for a cached long session, and I agree that 5.5 medium can feel very efficient when the context is being reused well. My point was more about total production cost once you start using it heavily through API and CLI across real workloads. Cached context helps a lot, but at scale the raw token volume still matters.",
  "title": "Is this a world record? The GPT 5.5 ran for 19 hours"
}