I put ChatGPT-4o and 5.1 through 9 real-world tests — from logic puzzles to coding, writing and image analysis.

In this guide, I gather tips on what you can do and how to get better results.

That mainstream deployment shaped user expectations in a way that later transitions struggled to accommodate. In August 2025, when OpenAI initially replaced GPT-4o with its much anticipated then-new ...

OpenAI's GPT-4o ChatGPT upgrade, announced earlier this week, was an amazing display of power. The company dropped a big AI live demo ahead of Google's I/O 2024, where Google would talk only about ...

OpenAI has this week made available its new and highly anticipated ChatGPT-o1, a groundbreaking new language model designed for complex reasoning and nuanced understanding. This advanced AI system has ...

The analysis shows that ChatGPT-4o delivers stronger answers than its predecessor in almost all 21 scenarios. It tends to ...

OpenAI CEO Sam Altman unleashed ChatGPT on the world on November 30, 2022. It's been on an historic trajectory ever since.

OpenAI is facing a wrongful death lawsuit after a man killed his mother and took his own life back in August. The suit ...

The heirs of an 83-year-old Connecticut woman are suing ChatGPT maker OpenAI and its business partner Microsoft for wrongful ...