OpenAI is bringing back GPT-4o in ChatGPT just one day after replacing it with GPT-5. In a post on X, OpenAI CEO Sam Altman ...

When OpenAI released its new flagship GPT-5, it said it would discontinue its older 4o model, popular for its warm writing ...

Researchers from Zenity have found multiple ways to inject rogue prompts into agents from mainstream vendors to extract sensitive data from linked knowledge sources.