OpenAI has launched GPT-5.5 Instant as the new default model for ChatGPT, replacing GPT-5.3. The update introduces real-time self-correction, a 52.5% reduction in hallucinations for sensitive topics, ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. OpenAI confirms security incident means macOS users must update all apps now. ChatGPT ...

Ads are rolling out across the US on ChatGPT’s free tier. I asked OpenAI's bot 500 questions to see what these ads were like and how they related to my prompts. In my rough tests, the ChatGPT ads felt ...

OpenAI just announced its latest models, GPT 5.4 mini and nano, with the former now available to free ChatGPT users. Earlier this month, OpenAI launched its GPT 5.4 model in its higher tiers of use, ...

When OpenAI released GPT-5.4 at the start of March, the company said the new model was designed primarily for professional work like programming and data analysis. Now OpenAI is launching GPT-5.4 mini ...

ChatGPT Health — OpenAI’s new health-focused chatbot — frequently underestimated the severity of medical emergencies, according to a study published last week in the journal Nature Medicine. Subscribe ...

A sprawling Chinese influence operation — accidentally revealed by a Chinese law enforcement official’s use of ChatGPT — focused on intimidating Chinese dissidents abroad, including by impersonating ...

OpenAI says it's retiring several ChatGPT models, including the much-loved GPT-4o. Many users developed a strong attachment to 4o's personality and relied on it for emotional advice. OpenAI's Fidji ...

OpenAI has officially launched ads in ChatGPT yesterday. The company announced, "Today, we’re beginning to test ads in ChatGPT in the U.S. The test will be for logged-in adult users on the Free and Go ...

OpenAI is bidding adieu to 4o, a favorite model among many users. Chats with 4o will still be accessible after that date. The company says only 1% of its users still engage with 4o. It's a sad day for ...

Geoff’s column hunts for how tech can make your life better — and advocates for you when tech lets you down. Got a question or topic to investigate? [email protected] and geoffreyfowler.88 ...

Your AI doctor’s office is expanding. On Jan. 7, OpenAI announced that over the coming weeks, it will roll out ChatGPT Health, a dedicated tab for health that allows users to upload their medical ...