If you’ve ever opened ChatGPT and felt baffled by the alphabet soup of model names – like GPT-4o, o3, o4-mini – you’re not alone. OpenAI (the company behind ChatGPT) doesn’t exactly make it easy with ...

OpenAI’s latest GPT-5 model dropped yesterday and it’s making big waves in the rapidly moving AI industry. GPT-5 is more than an upgrade. It aims to be a single, smarter system that blends reasoning, ...

When OpenAI launched GPT-5 last week, the company said the model would simplify the ChatGPT experience. OpenAI hoped GPT-5 would act as a sort of “one size fits all” AI model with a router that would ...

OpenAI on Monday launched a new family of models called GPT-4.1. Yes, “4.1” — as if the company’s nomenclature wasn’t confusing enough already. There’s GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano, all of ...

OpenAI has unveiled its latest and most advanced update for its ChatGPT chatbot yet. The new model, known as GPT-5, is more useful and intuitive than its prior versions, OpenAI CEO Sam Altman said ...

While ChatGPT has existed in various forms for some time, its true mainstream success began with the release of GPT-3 in 2020. Since then, ChatGPT has evolved significantly, both for better and worse.

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 ...

In his One Useful Thing newsletter, Ethan Mollick explains what’s interesting about GPT-5: In general, AIs that “think” before answering (called Reasoners) are the best at hard problems. The longer ...

November 13, 2025 Add as a preferred source on Google Add as a preferred source on Google OpenAI announced GPT-5.1 Instant and GPT-5.1 Thinking on Wednesday, the latest models that power ChatGPT.

After years of rumors and speculation, OpenAI’s next-gen GPT-5 language model is finally here. But while many of those early rumors claimed that the next major ChatGPT model would achieve artificial ...

A curious detail of OpenAI's popular AI models—like the GPT-4o model used in ChatGPT—is that despite the name, OpenAI's models are overwhelmingly not open-source. OpenAI has now released two new ...