I tested ChatGPT Plus vs. Gemini Pro to see which is better - and if it's worth switching ...

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

OpenAI makes GPT‑5.5 Instant ChatGPT’s default, cutting hallucinations and boosting personalization with memory sources.

GPT-5.5 Instant is OpenAIs latest lightweight AI model built for quick and efficient interactions inside ChatGPT.

ChatGPT should also feel “smarter and more accurate” in general, OpenAI said. In addition, responses should also feel more ...

ChatGPT is more than just a chatbot—it’s a powerful platform that can be used to make some aspects of your work much easier. But it isn’t one-size-fits-all. The platform lets users choose between ...

The Chinese lab that shook Wall Street just dropped its biggest, most efficient model yet, hours after OpenAI launched ...

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

OpenAI has quietly swapped out the engine powering ChatGPT for most users. Starting May 5, GPT-5.5 Instant replaces GPT-5.3 ...

OpenAI has quietly delivered one of the most noticeable upgrades to ChatGPT in recent memory. As of May 5, 2026, GPT-5.5 Instant is now the default model for all logged-in ChatGPT users worldwide, ...

OpenAI released GPT-5.5 Instant as ChatGPT’s new default model with fewer hallucinations and improved reasoning.