OpenAI has released its GPT‑3.5 Turbo API to developers as of Monday, bringing back to life the base model that powered the ChatGPT chatbot that took the world by storm in 2022. It will now be ...

OpenAI is making ChatGPT's free text conversations nearly unlimited, shifting the value of paid plans toward deeper reasoning, higher limits and advanced features.

OpenAI’s ChatGPT has surpassed 400 million weekly active users, a milestone that underscores the company’s growing reach across both consumer and enterprise markets, according to an X post from chief ...

As of August 2026, you can send unlimited texts to ChatGPT.

OpenAI will soon retire GPT-4, an AI model it launched over two years ago, from ChatGPT, according to a changelog posted on Thursday. Effective April 30, GPT-4 will be “fully replaced” by GPT-4o, the ...

OpenAI cut GPT-5.6 pricing for Terra and Luna while Sol is now 2.5x faster in the API. Here's why this matters, as AI budgets ...

OpenAI has expanded its enterprise AI strategy with the launch of GPT-5.6 and ChatGPT Work, while announcing that its latest flagship model will become the default AI model powering Microsoft 365 ...

While ChatGPT has existed in various forms for some time, its true mainstream success began with the release of GPT-3 in 2020. Since then, ChatGPT has evolved significantly, both for better and worse.

OpenAI on Wednesday launched GPT-Live, a pair of new voice models that fundamentally redesign how people talk to ChatGPT — replacing the company's existing Advanced Voice Mode with an architecture ...

AI labs are still finding out novel ways to improve on the ARC-AGI benchmarks, which are designed to be particularly hard for ...