April 14 (Reuters) - OpenAI on Tuesday unveiled GPT-5.4-Cyber, a variant of its latest flagship model fine-tuned specifically ...

Security researchers used GPT-5.4 and Claude Opus 4.6 in an open-source harness to reproduce Anthropic's Mythos vulnerability ...

OpenAI's Codex desktop app now controls your Mac, runs its own browser, and generates images in a new update released today.

ChatGPT cheat sheet for 2026, covering features, pricing, availability, support for older devices, how it works, and top ...