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Fast mode isn't actually 50% faster, but still takes 2.5x usageComplaint (i.redd.it)

submitted 1 month ago by KeyGlove47<br>45 comments<br>share<br>save<br>hide<br>report

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[–]iFeel 59 points60 points61 points 1 month ago (6 children)<br>Am I crazy or just recently they changed it to 2.5 more expensive instead of 2.0 (original cost after the release)

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[–]EnvironmentalLog1766 28 points29 points30 points 1 month ago (4 children)<br>2.0x cost for GPT-5.4. 2.5x cost for GPT-5.5

Source: https://openai.com/index/introducing-gpt-5-5/

GPT‑5.5 is also available in Fast mode, generating tokens 1.5x faster for 2.5x the cost.

That’s a very bad deal for anyone paying their own money. Only make sense if your employer provides no limit.

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[–]Tystros 11 points12 points13 points 1 month ago (2 children)<br>also a good deal if you're close to your weekly reset and still have 50% left

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[–]youngishgeezer 1 point2 points3 points 1 month ago (1 child)<br>Or if your time is more valuable than a subscription upgrade.

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[–]skilliard7 0 points1 point2 points 9 days ago (0 children)<br>I kind of like Codex taking it's time, I can surf youtube while I wait for it to run. It feels like playing an idle game, only I am actually building something potentially useful and actually being productive.

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[–]ChampionshipUnique71 0 points1 point2 points 5 days ago (0 children)<br>Honestly it depends on how valuable your time is. There is a threshold where it is rational or irrational to do it.

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[–]saltedduck3737 7 points8 points9 points 1 month ago (0 children)<br>Yes I mean it says “about” 1.5x faster and 2x cost but that might be higher in practice

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[–]alOOshXL 34 points35 points36 points 1 month ago (9 children)<br>fast mode is only good when you have close deadline and 100$ or more...