The new GPT-5.5 Instant model will replace GPT-3.5 Instant as the default model for ChatGPT ...

Despite earlier concerns that OpenAI might delay the GPT-5 release, the launch is now here. OpenAI on Wednesday announced on social media that a livestream would take place at 10 a.m. PT on Wednesday, ...

OpenAI released its latest model, GPT-5.5, on April 23, just a week after Anthropic introduced Claude Opus 4.7. As the two leading models from the two leading AI labs, we wanted to see how the new ...

Jon covers artificial intelligence. He previously led CNET's home energy and utilities category, with a focus on energy-saving advice, thermostats, and heating and cooling. Jon has more than a decade ...

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 ...

After a week of noisy frustration, canceled subscriptions, and endless screenshots, ChatGPT quietly flipped a switch. The app now exposes a legacy model picker that lets you choose GPT-4o again. It is ...

Forbes contributors publish independent expert analyses and insights. Dr. Lance B. Eliot is a world-renowned AI scientist and consultant. A new form of AI safeguard consists of transferring a ...

Following the Trump administration’s AI Action Plan and a summer wave of new models — Grok 4, an updated Claude, and OpenAI’s open-source and agent variants — the AI community’s anticipation for the ...

Katelyn is a reporter with CNET covering artificial intelligence, including chatbots, image and video generators. Her work explores how new AI technology is infiltrating our lives, shaping the content ...

Chat GPT is one of the leading products for the Silicon Valley-based artificial intelligence developer OpenAI. The program stands for Chat Generative Pre-Traind Transformer, and its essential purpose ...

OpenAI’s GPT-5.5 Instant is now ChatGPT’s default model, promising fewer hallucinations, shorter answers, better memory controls, and clearer chats.

As of May 5, 2026, GPT-5.5 Instant is now the default model for all logged-in ChatGPT users worldwide, replacing GPT-5.3 Instant. The change is rolling out across web, mobile, and the API, meaning ...