OpenAI unveils GPT‑5.4‑Cyber, an AI model for defensive cybersecurity

OpenAI has announced a new AI model called GPT-5.4-Cyber. Similar to Anthropic’s Claude Mythos, this new “cyber-permissive” ...
Hosted on MSN

GPT 5.4 arrives on ChatGPT: 5 improvements to know

OpenAI dropped GPT‑5.4 this week, and the company said ChatGPT power users should notice improvements right away. The launch comes just days after the launch of GPT-5.3 Instant, a more conversational ...

OpenAI GPT-5.4-Cyber — The Security Of Tomorrow Or A PR Response To Claude Mythos?

OpenAI's limited release of GPT-5.4-Cyber highlights that frontier AI is slowly changing how enterprises approach ...
Fast Company

OpenAI gave GPT-5 an emotional lobotomy, and it crippled the model

It’s rare for a tech titan to show any weakness or humanity. Yet even OpenAI’s notoriously understated CEO Sam Altman had to admit this week that the rollout of the company’s new GPT-5 Large Language ...
Forbes

GPT-5’s System Prompt Just Leaked. Here’s What We Learned

GPT-5’s system prompt just leaked to Github, showing what OpenAI wants ChatGPT to say, do, remember … and not do. Unsurprisingly, GPT-5 isn’t allowed to reproduce song lyrics or any other copyrighted ...
MacRumors

ChatGPT Plus Users Can Keep Using GPT-4o After Complaints About GPT-5

OpenAI CEO Sam Altman today said that the company will allow Plus users to continue to use the prior-generation GPT-4o model if they don't want to use the new GPT-5 model that came out yesterday.