ChatGPT’s o4-mini, o4-mini-high and o3 spotted ahead of release

OpenAI is preparing to launch as many as three new AI models, possibly called “o4-mini”, “o4-mini-high” and “o3”.
Right now, ChatGPT has as many as five models, including GPT 4o (the non-reasoning model), GPT 4.5 (another non-reasoning model but with greater creativity), and three reasoning models: o1, o3-mini, and o3-mini-high.
o1’s successor is o3, but a full-fledged model isn’t available yet.
We only have access to the o3-mini and o3-mini-high, which are small reasoning models in the o-series, offering improved performance and faster responses.

Source: BleepingComputer
According to references found on ChatGPT’s web app, OpenAI is preparing to launch as many as three new models: o3 (a full-fledged reasoning model in the o3-mini, o3-mini-high lineup), and o4-mini, o4-mini-high, similar to the existing models but with greater reasoning capabilities.
In a post on X last week, OpenAI CEO Sam Altman previously confirmed that OpenAI plans to launch new o3 and o4 models before the upcoming GPT-5, which is said to be a unified reasoning model.
“We are going to release o3 and o4-mini after all, probably in a couple of weeks, and then do GPT-5 in a few months,” Sam Altman wrote in a post on X.
“There are a bunch of reasons for this, but the most exciting one is that we are going to be able to make GPT-5 much better than we originally thought. We also found it harder than we thought it was going to be to smoothly integrate everything, and we want to make sure we have enough capacity to support what we expect to be unprecedented demand.”
We don’t know when OpenAI plans to ship these three new models, but preparations are clearly underway based on the references.
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