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 introduced GPT-4o, a non-reasoning model to ChatGPT users back in May 2024. Finally, over 10 months later, the hot AI ...

Welcome to Neural. AI moves fast. We help you keep up. OpenAI has officially unveiled GPT-4.5, the latest version of the fastest ...

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 ...