Feb 17 • Artificial Intelligence
OpenAI has officially pulled the plug on its older models inside ChatGPT.
GPT-4o, GPT-4.1, GPT-4.1 mini, and o4-mini are no longer selectable in the interface (they’ll still exist in the API for now).
According to OpenAI, fewer than 1% of users were still choosing them, and their best features have been rolled into GPT-5.1 and GPT-5.2.
“We know that losing access to GPT-4o will feel frustrating for some users, and we didn’t make this decision lightly. Retiring models is never easy, but it allows us to focus on improving the models most people use today.”
— OpenAI
Why this matters: GPT-4o had a loyal following because of its warmer personality. The first time OpenAI tried to retire it, the backlash was loud enough that they reversed course.
Now that the newer models include customizable personalities, OpenAI clearly feels confident it’s time to move on for good.
Personally, I'll have to play more - as I didn't like the output from 5.2 as much, so I've been using older models til now. (I wonder if I just prompt it to act like 4o prior to whatever I'm after... hmmm.)
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OpenAI has officially pulled the plug on its older models inside ChatGPT.
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