OpenAI reversed the change on Tuesday, allowing the previous model to be accessible by paid users, but the episode illustrates what researchers are calling “AI Psychosis,” where overly-pleasing chatbots exacerbate delusions and create a false sense of romantic love.

Current and former OpenAI employees plan to sell approximately $6 billion worth of shares to an investor group that includes Thrive Capital, SoftBank Group Corp. and Dragoneer Investment Group, in a deal that values the ChatGPT maker at $500 billion.

OpenAI's Greg Brockman said startups that connect large language models to real-world applications are still extremely valuable.

In response, OpenAI preserved access to GPT-5 Standard and Thinking models while restoring GPT-4o for ChatGPT Plus customers. Additionally, the business pledged to enhance GPT-5 by making its answers more captivating and emotionally impactful.

Learn how OpenAI’s Agents SDK empowers developers to create intelligent, adaptable systems for automation and dynamic problem-solving.

OpenAI chief research scientist Jakub Pachocki said Paul Graham's "Hackers and Painters" inspired him when he was 15.

OpenAI CEO Sam Altman discusses the AI bubble, its transformative potential, and ChatGPT's rise to become the 5th most visited website.

In a post on X (formerly known as Twitter), the official OpenAI handle announced that GPT-5 has been updated, and its responses will now be restructured. “Changes are subtle, but ChatGPT should feel more approachable now,” the post added.

GPT-5 is OpenAI’s latest, and now flagship, AI model. This new version is now the default system for a range of AI chatbots. OpenAI says GPT-5 is much more intelligent that the previous GPT-4 mode, with major improvements in complex front-end generation.

OpenAI is said to be working on a Chromium browser with AI features like tab selection and automated browsing.