ChatGPT is getting even smarter. OpenAI has unveiled its latest model, GPT-4.5. The new model is already available to ChatGPT Pro users and developers.

OpenAI rolled out a research preview of GPT-4.5, it's "largest and most knowledgeable model yet," on Thursday.

Internally called Orion, GPT-4.5 is OpenAI’s largest model to date, and it’s first available through the company’s $200 ...

OpenAI CEO Sam Altman has announced that GPT-4.5 will "likely" begin rolling out to ChatGPT Plus subscribers "over a few days ...

As of January, GPTs can be used within the standard ChatGPT chat window. Users can type the @ symbol to choose a GPT. Working on multiple projects and want to keep them separated within the ...

But it could be the last release in OpenAI's classic LLM lineup.

The clean interface shows your conversation with GPT in a straightforward manner, hiding the chat history and settings behind the menu in the top right. There’s even an official ChatGPT app for ...

Currently, free users have limited access to GPT-4o. "The free tier of ChatGPT will get unlimited chat access to GPT-5 at the standard intelligence setting (!!)," Altman wrote on Wednesday in a ...

Moreover, Altman revealed that free tier users of ChatGPT will get unlimited chat access to the new GPT-5 model once it arrives, available on a standard intelligence setting, and will be subject ...