OpenAI CEO Sam Altman in Paris, France, on Feb. 11, 2025.Nathan Laine/Bloomberg/Getty ImagesLess than three years after OpenAI kicked off the generative AI boom with the launch of its ChatGPT chatbot, the company has struggled to remain the undisputed pacesetter amid a growing field of rivals developing advanced LLM models.
On Thursday, OpenAI took a major step in its effort to reassert its leadership with the launch of GPT-5, the long-awaited update to its flagship AI product and its most powerful and fastest model yet.
The company said the model delivers “more accurate answers than any previous reasoning model,” and is “much smarter across the board.”
Its research blog noted new state-of-the-art performance across math, coding, and health questions, and found that GPT-5 outperformed other OpenAI models across tasks spanning over 40 occupations including law, logistics, sales, and engineering.
In addition, it is being billed as “one unified system” with no need to choose from what was becoming a laundry list of different OpenAI models.
OpenAI is making its latest AI model free to all ChatGPT users as well as through an API that lets developers and businesses build on top of it.
OpenAI is also rolling out some new ChatGPT features. For example, users can choose from four preset personalities—Cynic, Robot, Listener, and Nerd—to customize how the AI responds.
Will it be enough? While ChatGPT now boasts an impressive 700 million weekly users, OpenAI has faced growing pressure over the past year as rivals poach its talent and race ahead on emerging AI techniques like long-context reasoning and autonomous tool use.
OpenAI CEO Sam Altman acknowledged that staying at the frontier means relentless scaling: “It’s going to take an eyewatering amount of compute. But we intend to continue doing it.”
—Sharon Goldman