Today, OpenAI is starting to roll out GPT-5 to all of its users. In a rather lengthy blog post, the company reveals that the model is available today for Plus, Pro, Team, and free users. However, Enterprise and Edu subscribers will have to wait one week before gaining access. There are three new models in total: GPT-5, GPT-5 mini, and GPT-5 Pro.

GPT-5 is now available. OpenAI CEO Sam Altman has likened the new bot to a Ph.D.-level expert, which is both impressive and a little terrifying. So what does a Ph.D.-level chatbot get you? Fewer "hallucinations" (that's what they call it when the AI just makes stuff up),

The AI giant’s "OSS" models are free to use and adapt, and could give the open-source community a serious lift.

Despite the company's name, OpenAI hasn't dropped an open version of its AI models since GPT-2 in 2019. That changed on Tuesday, as CEO Sam Altman shared two new open-weights, reasoning AI models, named gpt-oss-120b (120 billion parameters) and gpt-oss-20b (20 billion parameters).

We all know AI relies on open-source software, but most of the big AI companies avoid opening their code or their large language model (LLM) weights. Today, things have changed. OpenAI, the artificial intelligence titan behind ChatGPT,