The OpenAI GPT Store launched in January 2024 with more than 3 million custom GPTs. Ask any team how many they still use, and the answer is usually zero or one. Most business GPTs fail because they’re ...

If you're familiar with ChatGPT's past models, you already know that GPT-5 is quicker, deeper and more intuitive — but it’s also more likely to make assumptions, overanalyze or subtly steer your ...

On Wednesday, OpenAI upgraded its GPT-5 series of models in ChatGPT to include two brand-new models: GPT-5.1 Instant and ...

GPT-Red is an automated red-teaming model that OpenAI trains to find prompt injection weaknesses. It works the way a human red-teamer does. It sends a prompt, watches how a GPT model responds, and ...

Exclusive: The firm says it wants to future-proof its safety procedures and stay ahead of human attackers. OpenAI has built an LLM super-hacker called GPT-Red that it uses as a sparring partner to ...